dedicated-server

[final current]

Ah, sorry you're missing out on the 'heiming now. I appreciate you letting me know the model. Thanks!

[dusty yacht]

Anyone here more knowledgeable know why my buddy cant join my server with the exact same modlist. Different versions error.

and what ever this is in console.
Sorry for just throwing this here also

[final current]

I'd try posting this in #mods-issues for better help. We focus on the out-of-the-box dedicated server here.

[fierce sandal]

how do I see what combat difficulty I currently have on my server? I set it to hard in server file with "-modifier combat hard" but now we decided we want normal back and I put "-modifier combat normal", it still feels pretty hard so im not sure is it normal or hard now

[proven niche]

Check in your F2 info window. It might show there. I can't remember.

[fierce sandal]

oh, yeah says hard, so how do I change it back to normal?

[proven niche]

In your F5 console, you can use ** listkeys** and removekeys, if it's one of the keys set there.

If not, you can reset the world to totally vanilla with setworldpreset default.

[fierce sandal]

https://i.imgur.com/xyUbm4U.png

it gives me that when I type anything in console

[proven niche]

You might have to load ServerDevcommands on the server, if it isn't already there. And check your server and your game for any out of date mods, as usual.

[fierce sandal]

I have ServerDevcommands mod, gonna check what I have

[proven niche]

Check that it's on both your game and the server, too.

[fierce sandal]

did you say earlier 7-8 months ago max and mod is not outdated? I see some mod 1y old last update

and 1 mod 2y ago

CombatOwner is the 2y ago
and InstantMonsterLootDrop by aedentrhorn_mods is 1y ago

[proven niche]

https://tenor.com/view/viking-funeral-gif-20223048

One year old and still working ok would be very rare. 2yrs old and it's just RIP.

[fierce sandal]

ok gonna start with those and see if something changes

hmm but there is quite few old mods from Smoothbrain, like Mining, Ranching, lumberjacking, etc?

do I really need to remove all of them

[proven niche]

No, leave her's for last and only remove them if you have to. Those are usually well supported and up to date.

You're working with thunderstore.io for your mods, right?

[fierce sandal]

if its not fixed by removing those 2 mods would you mind checking my mod list if you instantly see some bad old mods? and yes im using that with r2modman

most of the mods I installed were used by that streamer quin69 and I only added few extra myself

ok removing those 2 made my dev commands work

[proven niche]

I will if I have time but I can't really do it any better than you can. Just click on the mod in r2modman, choose "website" and you'll see the last udated date right there. Just a couple easy clicks.

[proven niche]

Great. 🍻

[fierce sandal]

hmm so how do I change it with removekeys? I see it there "preset combat_hard" but when I type "removekey preset" and anything after it says "too many parameters"

[proven niche]

Use "setworldpreset default" and the whole world goes vanilla.

[fierce sandal]

ok everything is fixed and working now I think, hope it fixed few other minor weird things we saw during gameplay too with those old mods 😅
thanks

[idle agate]

can someone help me set up my server please

i got one through nitrado and i cant join and my friends cant too

[proven niche]

Here's the description for this channel. You can see it for yourself by clicking at the top of the screen:

"Valheim dedicated server issues. | We cannot help you with 3rd party hosting sites or give advise which one you should buy/rent"

So, read their instructions again or put in a support ticket with Nitrado.

[placid scaffold]

I've got a dedicated server that I want hardcore, but I want to re-enable the map.

Whats the best way to do this?

[final current]

Had you set the NoMap global flag? If so, the good news is that using either the -preset Hardcore launch argument or the setworldpreset Hardcore admin console command will result in NoMap being removed.

Just make sure to remove the -setkey NoMap launch argument if that's how you're setting it.

[full owl]

Running my own server using dedicated server. Modified admin file. I can get devcommands on but when I try debug mode it tells me it’s not allowed in this environment. Any ideas? Yes server has been restarted. Yes I added steam id to admin file.

[proven niche]

I'm only guessing here as I don't have time to trouble shoot it myself right now. But debugmode may not be an Admin command. You may need to have the ServerDevcommands mod installed on your game and maybe even on the server as well to get it to go into debugmode.

But, yeah. That's just a guess.

[final current]

Yep, Jaga is correct. No debugmode on dedicated servers in vanilla valheim

[high grove]

Hi. Hoping this is the right place for this, but my friend has been hosting our world and we are wanting me to start hasting it, He says that it is a cloud save and then when he goes to C:\Users\Carson\AppData\LocalLow\IronGate\Valheim\worlds_local he said that there were only 3 files and this is what eh sent me. I added it to my same worlds_local file and relauched the game and the world is not there... These file types seem wrong. Are these salvageable at all?

[proven niche]

It sounds like he sent you the wrong world's files.

If his world saves are saved in the cloud, then they are in his worlds folder. Not his worlds_local folder.

And, the Cashe files are also wrong. Those aren't needed.

He needs to find the .db and .fwl file pair for the world. They have to both have the same date/time so he knows they're a proper pair and go together.

He should be able to move them from cloud to local on his PC with his game start menu options. That would put the file pair in his worlds_local folder.

[high grove]

Awesome thank you! I will send this his way.

[pliant marlin]

Hi all, I've looked through the discord and numerous places online for help with setting up a modded (including Valheim Plus) Valheim Dedicated Server (steam) on my Apple Silicon computer. I've found links to how to do this for the game itself (and was able to get that successfully set up), but I'm not sure where I should be configuring BepInEx for the Server app?
On the mac there is the Valheim dedicated server app and folder. Do I place the mac version of BepInEx in there? I'm unsure of how I'd modify the start_server.command file to enable BepInEx though. I'm aware that I'll most likely need to run this using Rosetta, as some components inside BepInEx aren't apple silicon native yet, but the configuration is confusing me.
Are there any documents/videos explaining how?

[low kettle]

It might be worth looking into something a bit more out of the box.

Anything apple side is a pain in the arse to set up. Let alone a dedicated server.

Pterodactyl, if it runs on your OS, could help you get over the hump. It would turn it into a generally plug and play experience and, added bonus? You can set up dedicated servers for lots of different games if you ever fancied

[final current]

How good are you with shell scripting? I remember having to modify the BepInEx wrapper script to pick it up. Issues is on BepInEx's side. The script only really hooks in based on extension like .app. You'll also need to run with an x86_64 emulator as last I checked there still wasn't arm64 support for BepInEx. If you need to dive deeper, I recommend moving the discussion to #mods-issues.

Are you using Crossplay networking or direct/Steam networking?

[pliant marlin]

Thanks, I will move this to there. I’m not uncomfortable with scripting, so I’ll dig.

[pliant marlin]

I’ve got options for either. My biggest challenge is determining where BepInEx goes when using the server?

[final current]

That query was directed at Huntero

[pliant marlin]

Sorry, was on my phone and apparently didn’t look closely enough at your message.

[final current]

No problem at all 🙂

[iron kindle]

Are there any plans to release a Dedicated Server version that would handle game logic server side? It's kindof stupid that game stability relies on rando's PC/Connection performances....

[agile pecan]

I don't think there are plans for that. There is a mod which tries to do that, but I've never used it and I don't know how well it works

[knotty oracle]

I wouldn't have thought so, no.

[iron kindle]

Sigh, so we're forever stuck with that crappy coding?

[knotty oracle]

Crappy? It's a design choice.

[iron kindle]

True, stuck with that crappy design choice forever :\

[knotty oracle]

Literally nothing wrong with it.

[iron kindle]

Everything about it is wrong lol

[bleak ivy]

Hi, is theis a good spot for help with servers?

[agile pecan]

Weren't suggesting to leave "literally" for things that are true earlier?

[bleak ivy]

I have a server up, all my friends can join except one who gets odd errors. Have uninstalled and reinstalled, checked with r2modman and thunderstore and a manual install

[knotty oracle]

Yes. It's still valid.

[agile pecan]

Well, there are definitely things wrong with how the network code works

[bleak ivy]

It's running in the sitting room off a pc, I can connect on wifi but roommate cant and gets "incompatible versions"

[left stream]

I assume that is your friend's log that you posted?

[iron kindle]

Means your friend doesnt run the same version as the game, either update server or your friend needs to update the game. Could be a mismatch with addons as well

[bleak ivy]

It is

It's fixed, friends - I changed the language

A week of tinkering and its fixed bw swapping the language around

WTF why do I only do silly games like this and abiotic

[proven niche]

Cut down on your drinking, maybe.

[iron kindle]

And are your other friends that were able to connect before that change, still able to connect?

[proven niche]

I don't think he can hear us. He's probably out on the window ledge thinking about jumping even if it is just a first floor ledge.

[iron kindle]

lol

[bleak ivy]

I am, it's going pretty well!

[bleak ivy]

Yup, everyone has been able to connect since day one except this one guy who had the issue fixed by changing the language around. Non intuitive fix

[iron kindle]

Oh ok, he changed his game language?

[bleak ivy]

yup, fixed the incompat version issue.

[iron kindle]

wow

Wouldn't of guessed

[final current]

I'm guessing mods are involved.

[agile pecan]

Probably, apparently changing the ingame language is a known "fix" for some issues with certain mods

[woeful zenith]

Hey guys, I've been playing Valheim solo on and off since launch, just now trying to get friends into the game, we all live out off grid and run off our own Starlink internet dishes, I'm guessing if we wanted to play together we'd need to rent a dedicated server rather than host ourselves?

[olive depot]

I host a server that nobody plays on anymore. I could create a new world and drop in now and then. It's on my spare machine.

[proven niche]

What is it about satellite links that makes you think you probably couldn't self host a dedicated server? Bandwidth? Latency?

[olive depot]

Typically, during perfect conditions, the physics involved in satellite communications account for approximately 550 milliseconds of latency round-trip time. The longer latency is the primary difference between a standard terrestrial-based network and a geostationary satellite-based network.

[woeful zenith]

Honestly no clue lol, haven't even tried. I'm an old outdated dog, used to play Everquest on dial up back in the day and only recently got back into PC gaming

[plain trellis]

I think you mixing up Starlink with Viasat (and other old satelite internet providers) Starlink are not in geostationary orbit.

[olive depot]

@woeful zenith As I said my server is unused. I'd be happy to setup a new world for you and your friends to play on free. DM me.

[woeful zenith]

Ok thanks, I still need to convince them to buy and play but I'll get back to ya

[wide cipher]

don't use # in posts @old narwhal 😄

[eager walrus]

For now, direct/steam, but eventually both. I'd like to create script that will notify when somebody tries to join (and the server is offline). I figured out the logic/network side of this, but I don't receive any traffic when I try join unavailable server. For now I just tried to listen on TCP/UDP on 2456 and 2457.

For checking players, tools like A2S for Python works fine. But it's of course only if server is working.

I don't know much about how games work on network, but I imagine there should be like some UDP packets that identifies player and its connection.

[snow geyser]

For checking players and server you only need one mod on the server called ( discord control ) it reports everything to a discord text channel, allows rcon commands, players online, server saves etc

[eager walrus]

Thanks, definitely will be usefull too.

[novel aurora]

Anybody looking for a world to join?

[novel aurora]

How’d that work out?

@woeful zenith

PM me if anyone interested

Also looking into “Viking Games”
Participants n Creators welcome

[woeful zenith]

Haven't tried yet, been busy with sick wife and kids

[novel aurora]

Sorry to hear that. Hope all goes well.
I’m an old dog myself haha, lemme know if you’re.. UP AND AT THEM

[novel aurora]

@woeful zenith

[olive depot]

I got it all setup with a new world and tested it OK. I wanted access to my old world so I looked up setting up another server. It worked so both worlds are up now.

[novel aurora]

Just saw your msg now.
Don’t think that’s necessary

[olive depot]

It's handy having 2 servers running on the same machine. I can log in to whichever I feel like playing.

[proven niche]

Hmm... If you're the only one playing on your servers, then you don't really need a server at all to just play the game by yourself. If there's other players with you, then you'll need to consider them while you decide to turn one off and the other on.

[olive depot]

I have both running at the same time. A couple friends play on one and the other one I set up for @woeful zenith and their friends.

[fast warren]

Hola! I currently have a fine running dedicated server but I'm curious if someone has any documentation about running two servers at once on the same machine. I am using Windows. Both would be using crossplay.

[olive depot]

I just did that yesterday. I forwarded another port, created a new folder, copied everything in server 1 folder to server 2 folder and edited .bat file to use other port.

[fast warren]

interesting. so its two different scripts? are you using crossplay? (if youre using crossplay is the playfab IP the same except for the ports being different?)

[olive depot]

crossplay is enabled

[fast warren]

did you do something like 3456-3458 vs 2456-2458?

[olive depot]

exactly

[fast warren]

Thank you! Ill give it a shot

[olive depot]

not sure about playfab

[fast warren]

playfab is crossplay basically

its what microsoft uses as a proxy kinda thing

security reasons i believe

@olive depot same folder and everything just like this?

[olive depot]

yes

[fast warren]

sweet

[olive depot]

worked for me. good luck.

[fast warren]

worked like a charm man! thanks again

[final current]

I would highly recommend using a separate -savedir for both if you haven't already.

[olive depot]

I'm curious why that is needed as long as worlds have separate names.

[final current]

It is not, but it stops you from accidentally cross-contaminating world management and it allows you to have separate whitelist/admin list/bans

[olive depot]

I see. Thanks.

[fast warren]

so if im going to be the only admin, then im safe leaving it as is?

[final current]

Totally up to you if the world names are at least unique. The one case I would say where it's absolutely necessary is if you have the desktop version of the game on the same OS as the dedicated server(s). In that case, the risks are too high IMO as you could find cloud syncing promote or overwrite the wrong version of your world.

[fast warren]

yeah that makes sense. its a seperate machine

[olive depot]

Is this the command? -savedir C:\Users\username\AppData\LocalLow\IronGate\Valheim_2

[final current]

That's the argument, yep. You can use any directory the dedicated server's system user has access to.

[olive depot]

Thanks. Do I need quotes around path?

[final current]

That's up to whatever command interpreter you're using and whether the path has anything that needs to be escaped for that interpreter.

If this is Windows and you're using cmd.exe (either directly or via a batch script) then you would want double-quotes around it if there are any spaces at the very least. In most cases, it doesn't hurt to have them.

[olive depot]

OK thanks. Gonna do it.

[final current]

Cool. I recommend backing up the worlds somewhere then make sure to copy your world .fwl/.db pair to the new <savedir>\worlds_local before starting that one's server again.

[plain trellis]

FYI:
When hosting multiple private servers for different game-instances and games we play, running Proxmox with one of the VM's with Portainer, has made it so much easier for me. Highly recommended to try out, especially if you have dedicated HW to run the server(s) on.
I'm not a Linux guru, but I got it running after some learning. To me, it was worth the effort.

[hasty moth]

Hi, I’m looking for a non modded RP server (I play on steam deck and am not sure how to install mods on there). Are there any available and open for recruitment? 😊

[proven niche]

Check over in the #1024264966712340510 channel. This channel is just for help with setting up the servers. Good luck with it. Have fun!

[hasty moth]

Thank you!!

[stone pasture]

How could I reset a world's resources without affecting player buildings protected by wards?

[knotty oracle]

How would you do it WHILE affecting it?

[proven niche]

You should probably ask in one of the mod channels here. They have that kind of info that you're gonna need to do that.

[latent crypt]

What if I want to set multiple keys? Like both nomap & nobuildcost, would it be like this?
-setkey nomap, nobuildcost or would it be -setkey nomap nobuildcost

[final current]

-setkey nomap -setkey nobuildcost

[woven blade]

Hmm, been a few ywars since I started my Valheim server, isn't it possible to install/update the server via SteamCMD any more?

Ah fixed it, there was some -beta none parameter that wasnt supposed to e there.

[craggy blade]

Hi Folks, I am running a dedicated server in immersive mode (via the -preset immersive) and it used to work fine. As of yesterday (after a server restart), we are suddenly able to build portals in the game (and they work). Does anyone know what i have to do to make the portals disappear in the build menu for player again ?

[snow topaz]

Does anyone know the devcommands for removing mist from the mistlands?

[knotty oracle]

I don't believe there are any. But then, it's Mistlands for a reason.

[snow topaz]

i'm trying to get a good photo of it

[proven niche]

I think the only way to do that would be with a mod. You could ask in one of the mod channels here.

[olive depot]

So only the original server has the crossplay shuffle icon. I think that the problem is they have the same ip.

[fast warren]

same for me

however only the second one for me has the crossplay icon

[olive depot]

Whichever starts first?

[fast warren]

No idea honestly. I could restart them and see

[olive depot]

prolly is that

[main eagle]

How can I run the Valheim server over a local network? I've tried a dozen ways from the Internet, installed various programs, installed Hamachi and Radmin VPN, nothing helps. The game does not see an open server on any of their computers. Is it even possible to create a local network in this game?

[olive depot]

If you set up a dedicated server on one machine it's available over the whole internet including other machines on your network.

[proven niche]

If your game(s) and the server are on the same home LAN, use the server's internal IP address and port to connect. That's without using crossplay on the server.

If you need to have crossplay on the server to support Xbox users, then use the Join Code crossplay puts in the server command window/log.

[plain trellis]

The last option isn't availible "offline", correct? For playing xbox console and PC Steam on dedicated server, all on same LAN, you must use PlayFab over internet? Or did I miss something?

[final current]

Yes. You'd have to use Crossplay to support an Xbox user and that does indeed use PlayFab Party relays on the Internet.

You can do both loopback and LAN networking with the Steam mode (not Crossplay), but even then it still uses Steam's servers on the Internet to facilitate lobby features and Steam user identity. There are workarounds with Steam services emulators, though.

[plain trellis]

Thanks. Lets wish for a pure LAN-'mode' after 1.0, where owner of the game, can create a LAN server for all platform, that doesn't need connection to internet to play. Valheim are awesome to play in the same room with friends.

[ornate delta]

This doesnt allow portals to put copper ore through them (havent tried any other ore) -modifier raids none DeathPenalty casual Portals casual

[knotty oracle]

You need -modifier before each one.

[ornate delta]

Found that out by trial and error ty for confirmation

[rough rapids]

Hi all, i'm trying to run a docker-compose file with a Valheim dedicated server but it does not seem to be working. I'm using "image: lloesche/valheim-server" image.
Should i use a different one? Is there one that can work without a HOME directory?
Thanks a lot for any help 🙏

[final current]

What are you seeing when you try to use it?

[rough rapids]

https://pastebin.com/MZcCAnyq

well, thats the log file. i dont see any weird errors that are crashing the server.

so the docker runs. the server just never shows up anywhere (never been able to connect to it)

[final current]

Looks like it's working well. What's the issue you're encountering?

Rather, how are you trying to connect to it?

[rough rapids]

we can not connect to the server.
i tried looking for it in the community server browser, and i tried adding it with the direct IP. but both did not seem to work

port forwarding and firewall allow rules were created...but no difference sadly

[final current]

Can you give us your environment variables? Feel free to obfuscate the password

[rough rapids]

environment:
- SERVER_NAME="Da_maniaC's Valheim Server"
- WORLD_NAME="Pjukeriksja"
- SERVER_PASS="redactedt"
- SERVER_PUBLIC=True
- TZ=Europe/Amsterdam

[final current]

Try lowercase "true" (with the quotation marks if using YAML dict syntax to declare the vars). Also, these vars don't match your logs. The logs show it loading a Testworld instead of Pjukeriksja.

And given you're not using Crossplay, make sure you've exposed/published the container's UDP ports to the host in your docker composition and then make sure you've forwarded the host's UDP ports over your NAT if using a home router to connect to the Internet.

I am off to bed. Good luck!

[rough rapids]

Ahh yes i redacted the world name from the logs...that is why you were seeing a difference.
Thanks for the help so far, will give it a try!

Also, the ports are setup as follows (which allows me to forward the exact same ports throughout the docker/host/network)

ports:
  - 2456-2458:2456-2458/udp

[final current]

Needs to be an array and the entry should be in quotation marks to prevent YAML from treating it like a dict. See the examples block: https://docs.docker.com/reference/compose-file/services/#short-syntax-3

[rough rapids]

ah.. i have several other dockers that do not use quotes and work just fine. i tried both methods in the case of Valheim... no difference sadly.
when i start a valheim server on my main gaming pc, it just works. its discoverable to friends and they can join.
all the forwards are working (checked " sudo ss -ulpn | grep 245" and " sudo iptables -S | grep 245" through SSH)
i really don't get why its not working. 🙂

[final current]

Are you able to connect via the host system's LAN IP and main gameplay port manually with the docker setup?

And when you got it working native on the host, was that with the default -crossplay argument in place in the included shell script?

[rough rapids]

on my own PC i always start it with Crossplay yeah.... does that matter?

[final current]

Yeah, big difference in how the networking works

[rough rapids]

does the compose file support a CROSSPLAY=true flag or so?

[final current]

The container has an environment variable like that, yeah, though if you and the other players are using the Steam version, the reduced latency and increased reliability of connecting directly could be worth the trouble of the manual networking you have to do

[rough rapids]

ah

yeah basically we play PC only tbh

[final current]

If you want to try to get direct networking working, a next step would be trying to connect to the game manually using the LAN IP of the host (or loopback if you game on the server PC).

If that works, NAT port forwarding is the likely problem area assuming your ISP isn't using CGNAT

[rough rapids]

I will try connecting using the LAN IP in a bit

[rough rapids]

This is so weird... it will connect using the LAN IP, but when i give in the password i set up in Environment it will say "Wrong Password"

[blissful iron]

Hey guys, I'm trying to set up a lan server but the catch is I don't have any networking devices. I just moved to a new apartment with my friend and we want to play some Valheim. Is it possible to just plug one Ethernet cable to two PCs and run server on one?

[proven niche]

Both PCs and the server will need internet access. If you only have one ethernet cable use it for the server. If you have Wifi for the PCs, that's not ideal but should work.

If you don't have Wifi, you can try to set up a 'hotspot' temporary Wifi network using the PC that has the ethernet cable. You'll have to investigate how to do that on your cabled PC operating system. And it's not ideal at all but may get you going in a pinch.

[proven niche]

Is there some reason it isn't interpreting the -password variable? Is the password 5+ ASCII characters? Are you getting the right -name in your server list, if you get one at all?

Is the container getting the other environment variables from your container's environment file ok? You could try a password of "secret", which I think is the default to see if it's a variable problem.

[rough rapids]

The only environment variables i have, are in the compose file that i showed earlier.
The image documentation said nothing about another env file with more settings?

[proven niche]

Oh, ok. The environment file is just an option. I didn't remember correctly whether the lloesche container used it or not.

[rough rapids]

I run a few different dockers that work without a hitch (nginx, npm, pihole, dashy, kavita)

2456-2458 are really the only ports that a valheim container needs right? Because stuff like port 80 is already claimed by other dockers.

[proven niche]

Yes. It actually only uses the 2456 and 2457 ports right now. The 2458 port might be for later or something. You've forwarded them using IPv4 and UDP protocol in your router, right? Maybe try forwarding the two ports individually.

Oh, and double check that the server's internal IP address hasn't changed. Some home routers will do that without warning unless you specifically set up a permanent IP for the server.

[rough rapids]

This also seems correct:

username@servername:/DockerData$ sudo docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' valheim 172.18.0.2 username@servername:/DockerData$ sudo iptables -t nat -L DOCKER -n -v | grep 245 0 0 DNAT 17 -- !br-0e2f8e57adb1 * 0.0.0.0/0 0.0.0.0/0 udp dpt:2456 to:172.18.0.2:2456 0 0 DNAT 17 -- !br-0e2f8e57adb1 * 0.0.0.0/0 0.0.0.0/0 udp dpt:2457 to:172.18.0.2:2457 0 0 DNAT 17 -- !br-0e2f8e57adb1 * 0.0.0.0/0 0.0.0.0/0 udp dpt:2458 to:172.18.0.2:2458

[rough rapids]

turns out its working on lan... but it made a config file using "password" as a server password instead of password

public value says "1" maybe it should be 1 or true also.

when i restart the docker with different variables they do not seem to get updated though.

[final current]

How are you restarting the containers?
And yes, on that image, it's - SERVER_PUBLIC=true if using the array syntax or SERVER_PUBLIC: "true" if using the dict syntax.

[rough rapids]

i use OpenMediaVault so i use the restart/start method from there normally

[final current]

Is this the Compose Plugin for OMV?

[rough rapids]

yeah

[final current]

You might try Up instead of Restart

[rough rapids]

i always use Down and Up actually

im starting to think i might just need a different (more well maintained?) image then loesche tbh

[final current]

What makes you think that? From the logs you showed it seems to be working well

If it's not acknowledging new env variables you're setting, I doubt it's an image-level issue

Anything show up when you use the Check button?

[rough rapids]

no its okay

i managed to start and connect to it in LAN mode actually

it turns out, also when i host it from my own PC i need to use Crossplay in order for it to work. Not sure how to set this env for the image (i guess just CROSSPLAY=)

and then the only issue left is the loading of the right world (which also did not seem to work)

[final current]

When you use Crossplay, your server creates an outbound connection to a relay server hosted by Microsoft and all your players just connect to Microsoft's relay instead of your server directly. It makes it so you don't have to deal with IT networking, but comes with plenty of drawbacks.

Re getting it working on LAN, you've gotten past the password issue?

[rough rapids]

yeah... turns out i had to set: password , instead of "password"

[final current]

Alrighty, so in your NAT router (not talking about OMV's firewall), you have UDP forwarding rules that include both ports? And in the forwarding rule, the LAN IP you forward to is your OMV host and that IP hasn't changed since you created the forwarding rules?

[rough rapids]

Yep, IP is static, rules are in place and i tried TCP/UDP rules and UDP... no difference

i also have allow rules set up in my router firewall for WAN to LAN and LAN to WAN

(fyi: ZDoom and OpenTTD servers i run normally work without any problems)

[final current]

The WAN IPv4 address reported in the router's admin console, is it the exact same address you see when you browse to https://checkip.amazonaws.com/ from within the LAN?

[rough rapids]

yeah

[final current]

Assuming you have your SERVER_PUBLIC env var set up correctly, if you put that IPv4 address in https://geekstrom.de/valheim/check/ do you get back your server stats blob?

[rough rapids]

oh, thats a nifty tool

in the server log it states
Jun 1 20:11:56 supervisord: valheim-server DEBUG - [134] - Server config is name: "Da_maniaC's Valheim Server", port: 2456/udp, world: Pjukeriksja, public: 1, mod: none

so that should mean its okay

[final current]

What about with :2456?

[rough rapids]

same 😦

[final current]

OK, if you're absolutely sure the router's admin console WAN IPv4 matched the one that test site returned, then likely a port forwarding or router firewall issue.

[final current]

This won't help with the Community pane or geekstrom checks, but you will want to make sure you don't have a Crossplay server still running reporting from the same WAN IP, otherwise Valheim game clients will attempt to connect to its relay instead of directly connecting to your new server.

[rough rapids]

that was actually the case when i tested though.... i will check again tomorrow.
thanks for all the help so far! 🙂

[final current]

Sure thing. I'm sure you'll get it working soon. Have a good one

[inland shard]

Hey yall, we just started a dedicated server with superhost. We can't figure out how our xbox friends can play
The host said he enabled crossplay but it still won't work

[final current]

You've given the Xbox player the server's Crossplay join code? What did they see when they attempted to connect using that join code?

[inland shard]

We tried using the IP

It shows the server there, but it has a red X through it

"Failed to connect" is the message I get

Replicated by 3 different Xbox players trying to play

[final current]

If you and the other PC or Mac players had been connecting to the Steam-facilitated server, you'll want to delete your favorites entry for the server before attempting to connect again. I would recommend connecting with the Join Code instead of the IP address in Crossplay mode, even if coming from PC.

If still getting the message, the next time you attempt to connect, I would pull up the server logs provided by your hosting provider to see if there's anything obvious regarding the issue.

[inland shard]

We can't even find a join code

[final current]

It should be in the server logs if your hosting provider doesn't make it available on whatever dashboard they present. The server will only have a join code if Crossplay is enabled.

Is superhost a hosting provider? Or did I guess wrong and it's actually a software toolchain?

[inland shard]

A hosting provider. Thanks for your help. Unfortunately I'm not the one with the software, so I'm just trying to explain to him that he must not have crossplay enabled

[final current]

Well, he's welcome to stop by and post server logs if he wants some deeper troubleshooting.

[jade saffron]

Hey all, im running into issues getting mods to load on a dedicated server ive propped up. The mods I got (just a couple basic ones) all said "Server side" which means that, as I understand it, players that join my server shouldnt need to download them on their own through a modpack on thunderstore or anything, right?

But thats not happening, which either means im not understanding how mods work, or they're not properly installed on the server, just my client.

Currently the mods are siting in users\kreiger\roaming\thunderstore mod manager\datafolder\valheim etc

[left stream]

First let's find out if your server is loading the mods. There should be a log file in the bepinex folder.

[jade saffron]

under config, core or plugins? I assume core

[left stream]

same folder. profile/Bepinex/

[jade saffron]

to confirm, you mean Appdata/Roaming/Thunderstore Mod Manager/Datafolder/Valheim/Profiles/Default/profiles/BepinEx

there is no log.txt in that foilder or any subfolder that I saw

[left stream]

c:\Users\Student\AppData\Roaming\r2modmanPlus-local\Valheim\profiles\WILD-WEST\BepInEx\LogOutput.log

[jade saffron]

yeah, that does not exist, no.

[left stream]

it should when you start the server with bepinex.

[jade saffron]

ok, pretend im substandard intelligence. Walk me through that that means. I hit "Modded" under the Thunderstore app. is there a different/better way to start the file server with bepinex?

[left stream]

I use r2modman but should be same like thunderstore mod manager.
When you start it for the first time it asks you to select either server or game.
To be honest I don't even do it like that. I install mods separately then I sync that folder to the server's Bepinex/plugins folder. But you can try either way.

[jade saffron]

Ok, thunderstore does work similar

ly

I chose "valheim dedicated server"

I have 6 mods picked. bepinexpack_valheim by denikson and 5 other assorted QOL mods

the bepin one is the pinned one.

If its easier for you, I have no issue picking up R2modman so we can mnake sure we're on the same page

im already doing it lol

[jade saffron]

Ohh hmm

[left stream]

Settings > Locations

[jade saffron]

That does not say "set manually" it aims me at my steamlibrary\steamapps\common\valheim dedicated server folder on the correct drive.

ok, so I have two mods. bepinexpack and torches eternal, just to test.

now what?

[left stream]

start it

[jade saffron]

from the "start modded" button on the side, or manually from the headless.bat or does it not matter?

[left stream]

yes. modded

[jade saffron]

ok its launching

still no logoutput in profiles/bepinex/

[left stream]

Have you run that server as vanilla before? configured password, world files etc?

[jade saffron]

Yeah. I actually had a buddy connect just now while it was up.

its a fresh world. the idea for it is a new server with a more reliable host (me) to do a couple QOL mods for some friends of ours.

I can run the vanilla server all day, but this modding shit is giving me hives lmao.

[left stream]

would you mind trying it my way - a gap between the modman's and server's folders?
This way you'd have to manually copy/sync the mods from the profiles to the servers folder. I use freefilesync, but any file manager would do.

an advantage is you'll use the bat script and will not accidenlty update the modpack.

[jade saffron]

I dont mind doing that. is that a sync between two folders on the same system or a sync between two different systems?

[left stream]

sync means mirror the folder in this case. like delete everything and copy so it's exact same copy.

[jade saffron]

Yes, is it between two seperate PCS (my gaming pc and the dedicated server) or between two folders on the dedicated server itself.

i guess it doesnt matter. im down to try. hit me.

[left stream]

I mean I install mods in the modman and I can then sync that folder to local, or remote or any server anywhere. it doesn't matter.

[jade saffron]

ok, so where do I move the files to for the server? where SHOULD they be in the steamapps folder?

or should they be in locallow?

I assumed they should be somewhere in locallow/irongate/valheim

[left stream]

ok so you installed the server with steam service aka GUI, and not steamCMD right?

[left stream]

I assume this is th location of your server

[jade saffron]

uh, yes.

and yes

My adminlist/bannedlist and save filesa re in appdata/roaming/locallow/irongate/valheim

[left stream]

Do you also have the game client or only the server on that PC

It's good to separate the folders for world files to avoid issues in such case

[jade saffron]

the game client is on a seperate PC. I hjave a laptop that is my primary device, the server is on another physical PC entirely.

Valheim game client is not installed on the "server" just the dedicated server.

@left stream are you playing from the same machine you're hosting?

[left stream]

no. I have server on linux and I play from windows.

[left stream]

How to manlually install Bepinex?
#dedicated-server message

[jade saffron]

Yeah. my laptop is a macbook, but that shouldn't matter at all, its got steam and its not even involved in this yet, this is pure serverside stuff

[left stream]

it matters if some mods don't work on mac. But we're dealing with the server now.

[jade saffron]

Yeah. if it comes to that, i can play on the same PC im hosting from, but i'll burn that bridge when I get there.

[jade saffron]

so, in this case im looking at the valheim_server.exe file folder location

@left stream side-question : are some mods truly serverside, as in my friends will not need to manually download anything and it will be managed by the server once everything is up and working, or is that no longer a thing?

bepinex is installed manually

[left stream]

no. the tags on thunderstore can be confusing. There are mod types of mods that can't be properly tagged with only 2 tags. I will post another link now

[left stream]

configure and start start_headless_server.bat

[jade saffron]

Yeah. I ran it.

and of course a buddy of mine whos up my ass about "HOWS THE SERVER COMING" installs his own mods and is like "idk what the problem is, these work fine"

Do I even need to fuck with any of this then if they just run them all clienside?

[left stream]

#dedicated-server message

[jade saffron]

I thought I wsa doing this so nobody had to run them clienside. like Ark does it, or project zomboid. but if we cant do that anyway.. lol

[left stream]

no it's not like that. only a few mods are server-only

[jade saffron]

Thats a giant fucking mess lmao.

Project Zomboid had a very annoying issue where players would naturally update their mods while not in-game but because the server would be persistent, the players would have more updated versions of mods than the server would, and you'd have to constantly bring down the server or restrict people to versions of mods which was a pain to do for PZ specifically.

it sounds like thats the case here as well, maybe to a slighter degree

[left stream]

see what i posted above, there are mods that have to be on the server, but most of them are client-side. although it's not good if each player has a different config. That's why they're needed on the server to sync the configs to the clients. I can help you to make modpacks, up to 20ish mods. cause if you need more that that it takes time but it's easy to add/remove mods later on, once you figure out the basics.

[jade saffron]

I just need 6 mods.

including bepin

it sounds like maybe everything we need is just... clientside.

[left stream]

I'm supposed to move to the mods-issues chan cause this one is for dedi server mostly 😅

[left stream]

You may list the mods there in either mods-issues or mods-discussion channel

[left stream]

yeah may work 99%. although some mods would not.

[charred delta]

Anyone got a dedicated server and need a builder?

[sage nexus]

Need? no. But if your ping is in the southern hemisphere then I have a server. But you would be better off posting/asking in https://discord.com/channels/391142601740517377/1024264966712340510

[charred delta]

Aussie here so yep

[rough rapids]

@final current
I have gotten the dedicated server to work now, but only if i turn off my firewall in my home network router (and i don't really plan to do that).

I have and had set up all the necessary exceptions for Valheim but for some reason it still wont work with the firewall enabled.

I even moved the Valheim Allow rules on top of the entire Rule set now:

Could any of these defenses prevent Valheim from working?

(all my other services such as nginx, kavita, jellyfin, pihole and ZDoom/OpenTTD server work fine with all of this enabled).

[final current]

I would first consider disabling UDP flood defense. Game servers, videoconferencing, and video streaming, all mostly work by using a flood of UDP packets.

That may not be enough though as the initial connection attempts should not be picked up as a flood.

[final current]

I think the biggest point of concern is your Service Type Object. For inbound rules, you want source port to be anything, and only destination ports should be Valheim's

For outbound, you want the opposite (src is 2456-2457, dst is anything). Most Firewalls will be permissive for traffic matching NAT port forwarding rules in either direction, so you may not need an outbound rule at all. You'd have to consult your firewall's documentation.

[rough rapids]

Yeah for LAN to WAN i actually have another outgoing rule, allowing ports 1024-65536

[final current]

My guess is it's the Service Type Object then. If you're using it for inbound forwarding or inbound filtering rules, then source port should be every port possible.

[final current]

And at that point, the Service Type Object should not be used on a LAN to WAN rule.

[rough rapids]

I will try that when i get home... thanks 🙏

Only one question remains which is loading my existing world (from my current local save).
I put it in the volume/directory that i linked the docker to and have the same name defined in the compose file WORLD_NAME. Is there a flag/setting for loading an existing world instead of generating one perhaps?

Right now i have it in: /valheim/data/worlds_local/

Should it be /valheim/data/server/worlds_local/ perhaps?

[final current]

There's no flag to force loading of an existing one, but it will do it if your .fwl/.db pair is in the right place.

The image you're using expects that pair to be in /config/worlds_local.
It's assuming you're bind-mounting one of your host's directories to the container's /config dir. It's the dedicated server's "savedir". In addition to the worlds_local subdir, it will also have your banlist, adminlist and both Valheim's and the container's automated backups.

[rough rapids]

Thanks i will check it.

Almost there 🥳

[sage nexus]

Block Fraggle Attack
Any broadcast UDP packets received from the Internet is blocked.

[sage nexus]

65535
it's a zero-indexed range

[sage nexus]

-world
valheim_server.x86_64 -port $port -world "$world"

and if that references an .fwl for which there is no corresponding .db: it will generate a new map based on the seed/params within the fwl

but if there is a .db, it loads it

[mortal coral]

Does anyone know if the following is correct for setting these world modifiers. I'm on the wiki and I'm not sure of the Portals one, and whether StaminaRate can be set here too.
-modifier Combat easy
-modifier DeathPenalty casual
-modifier Resources more
-modifier Raids none
-modifier Portals portalitems
-modifier StaminaRate 50

I'm pretty sure I can self test most of it, including StaminaRate, but probably not portals. unless I can cheat them into a test world somehow I suppose.

[mortal coral]

Maybe it's -setkey StaminaRate 50

[mortal coral]

After searching discord more and testing, I can confirm that -setkey 'StaminaRate 25' (with the quotes) appears to work. Possibly this is the method for all the global keys, so the final working argument list is
-modifier Combat easy
-modifier DeathPenalty casual
-modifier Resources more
-modifier Raids none
-modifier Portals portalitems
-setkey 'StaminaRate 50'

[final current]

Looks good.

[final current]

The -world argument should not be used on that image. It has its own world management behaviors that depend on you not supplying that argument manually.

[rough rapids]

@final current

Shouldnt this mean the requests are coming from all sorts of different ports instead of 2457?

[final current]

Exactly. That's why your source port range should be all possible ports as I mentioned.

[rough rapids]

(this happens when i use the geekstrom site to check the connectability)

but that is on the WAN side?

if i open up all on the WAN side...then protecting it makes no sense? 🙂

[final current]

Correct, you shouldn't be protecting the ports you want everyone to be able to access.

The destination range will still be 2456 through 2457.

[rough rapids]

This rule should mean:
<Any> incoming request from WAN towards <my server IP> + <UDP Ports 2456-2458> = PASS Immediately

[final current]

Can you share your Service Type Object? That's where it matters.

[rough rapids]

ahhhhh so Source should be 1024-65535 ?

[final current]

Yes.

[rough rapids]

Woop Woop

[final current]

That will satisfy your average player, though macOS and Linux users can technically configure the kernel to use even lower ports if they want to (most don't).

[rough rapids]

that was a slip-up on my part... Thanks again!

[final current]

Don't forget to disable UDP flood protection. And no problem, glad you got it working.

[rough rapids]

its working now with UDP Flood Protection on.... but if people start dropping i will disable it

[final current]

If you do leave it on, you should immediately adjust all Steam clients on your LAN so your own machines don't get blocked, e.g. when using the Community servers pane.
Steam Settings (Preferences… on macOS) / In Game / MORE / Server browser pings/minute
and reduce it from the default.

[limpid lance]

ok where do i go to look for mods that are serverside only? i have a few friends that play through GeForce so they cant install mods unless the mods are on steam

[final current]

#mods-discussion would get you the most knowledgable eyes for that

[limpid lance]

ty

[sage nexus]

Oooh... docker. Ew

[ivory token]

I’m sure this is pinned somewhere but me and a buddy just rented a server for Xbox. I haven’t looked at it yet but does anyone know how to change some of the settings like you can if you set up a personal server??

Not trying to do anything, just drop combat to easy, death penalty to easy (less reduced skill loss), and maybe a resource modifier. Any help is appreciated even if you point us in the right direction

[left stream]

there are 3 ways.

1. Change the modifiers locally, you don't have to enter the world just change and exit then upload to the server.
2. Set server start parameters, this should be available in the settings on the web-interface that you are using or if you can access and edit the startup script: -modifier combat easy -modifier deathPenalty easy -modifier resources muchmore
3. admin commands in the game using setkey

[ivory token]

Appreciate the breakdown, is the admin commands the one when you hold LB+LT+Start (for Xbox) then type in the “devcommands”

[dim haven]

Greetings. little amateur home setup using steam dedicated server on windows os. I migrated a world save db + fwl file from one computer to another, same file location and changed the batchfile to the worldname but the new dedicated server seems not to start up properly. it says game server connected, all objects seems to be loaded. shows ip. but no join code, and then
Register PlayFab server '' with IP ...:2456
Server '********' begin PlayFab create and join network for server ".
Game is allowed in firewall. Just don't know where to open those ports, and probably forgetting tons of adjustements

[final current]

Would be up for posting the log? You can obfuscate the IP if you want. As for ports, it looks like you're trying to use Crossplay, so there isn't any port listening or forwarding to worry about.

[final current]

Yes. The server operator would have to add your player ID to the admin list first. From that console, you could then: setworldmodifier combat easy

[final current]

This seems truncated and oddly grouped, is it the whole thing?

[dim haven]

indeed those are different logs grouped together. i'll copy the one from cmd to have a better overview

[final current]

I don't know why this is the case for Crossplay's PlayFab Party, but it requires the MSVC redistributable to be installed: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

I think after installing that and restarting you should be good to go

Sometimes missing on a recentish Windows install

[dim haven]

right, i'm checking windows update page and there are tons to install. you're giving me hope! 🙂

[fervent holly]

any recommendations on the best server hosting site? Or at least any to avoid?

[dim haven]

Ok, installed MSVC redistributable, update complete OS, rebooted and now i got a join code, but when entering in game menu, message "failed to add server. couldn't resolve join code". Then entering ip adress + port number 2456, but message failed to connect

same for old server. seems like save files are corrupted. help?

[final current]

Hmm, if you have existing favorites entries for the server, recommend deleting those. On the client side, I recommend having a look at the Player.log from around the connection time.

Also note the join code will change if the connection to the PlayFab Party relay is severed for any reason, and you'd have to check the server logs for the latest. Once you successfully have created a working recents/favorite entry for the server, that entry should survive across future join code changes though

[grizzled mica]

Hi

[final current]

We try not to give advice on 3rd-party hosting sites in here, sorry. There are review sites out there and sometimes Reddit anecdotes can be helpful.

[fervent holly]

alright fair enough

[dim haven]

where can i find Player.log?

[final current]

If your gaming PC is also running Windows, it would be in %USERPROFILE%\AppData\LocalLow\IronGate\Valheim

[dim haven]

I can't see the forest for the trees

the forest is black

i appreciate your input!

[final current]

sure thing, hopefully you get to play on your server soon

[dim haven]

I don't understand what you mean by that "Also note the join code will change if the connection to the PlayFab Party relay is severed for any reason, and you'd have to check the server logs for the latest. Once you successfully have created a working recents/favorite entry for the server, that entry should survive across future join code changes though"

[final current]

Basically you only have to connect with the Join Code the first time. After that the game should be able to locate the server's relay going through Recents or Favorites in the menus.

[dim haven]

Couldn't resolve join code

[final current]

(resolved offline)

[rough rapids]

Ì set myself as admin, used devcommands to enable devcommands but when i enter tod it will mention "not valid in current context". am i doing something wrong?

[final current]

If you're using Jere's Server devcommands mod, devcommands will already be active so you may have accidentally toggled it off

[rough rapids]

dont think so ? 🙂

[left stream]

You need mod JereKuusela-Server_devcommands on the server and your client too.

[left stream]

tod 0.5
or something like that should work.
fly
ghost
god
spawn SeekerBrute 😅

[rough rapids]

@left stream Ahhh... are there any default commands for dedi though?

[proven niche]

What do you mean by default? You mean available without mods?

[rough rapids]

yeah

[proven niche]

There are Admin commands that you need to have the default Admin status on the server to use. That's all though.

[final current]

ban, banned, kick, save, setworldmodifier, setworldpreset, resetworldkeys, unban

[proven niche]

When you're on the server, you can open the F5 console and type in 'help' to get the list of commands availiable.

[rough rapids]

@proven niche Yeah there is nothing 'timeofday' or other related in there

is there a serverside mod that will host an admin webpage to control the server with extra commands like 'tod '?

[proven niche]

They might know in one of the mod channels here. Either #mods-issues or #mods-discussion would be likely. I don't know if that would be an issue for discussion or a discussion of an issue. Just pick one and you can't really go wrong.

[final current]

If you're at the point of modding for administration, @rough rapids, Server devcommands doesn't actually need to be installed on the server for tod to work. It can just be installed on the client.

[rough rapids]

interesting...

so it just requires admin access?

[final current]

correct

[rough rapids]

is there a category for these type of mods? im curious what else there is

[final current]

Don't know

But #mods-discussion definitely a good place to ask about the modding landscape

[vestal pewter]

Hello people! I played a lot with my friends on a dedicated server like a year ago and there were 0 issues. I just open the ports in ufw, start the server and give them the IP of the machine. However now there is an issue. Unless I enable crossplay nobody can join the server. And everybody gets kicked after a few seconds from the server. Why nobody can join without a crossplay? Regardless of NAT type nobody can join without a crossplay on the server. Something got very well broken with the updates?

[rough rapids]

I had a similar problem recently. Turned out i had my firewall rules configured incorrectly.
If you turn off crossplay and run the server, and use this site to check, does it show up as Online?

https://geekstrom.de/valheim/check/

[final current]

How is the server routed to the Internet for IPv4? Home router with NAT?
Crossplay is nice and easy because Microsoft handles all of the IT networking instead of you handling it. Nobody connects directly to your server in this case and even your ufw rules won't matter as long as there's an outbound-accept rule and inbound-established accept rule.

When you disable Crossplay, you are responsible for every hop from the Internet to your server's UDP ports.

[vestal pewter]

Server is a dedicated server from Hetzner where I host all game servers

[final current]

Can you show us your inbound ufw rule for the ports? And are you using Hetzner Cloud Firewall on top of it?

And you mentioned "regardless of NAT type". Is this server in a private cloud network, routed to a NAT router you set up on Hetzner as well?

[vestal pewter]

No, no cloud firewall as I use a dedicated servers from them, not cloud

radiant@milky-way:~/valheim-2025$ docker ps
CONTAINER ID   IMAGE                             COMMAND                  CREATED          STATUS          PORTS                                                                             NAMES
6b5c7b80d9c6   ghcr.io/lloesche/valheim-server   "/usr/local/sbin/boo…"   39 minutes ago   Up 39 minutes   80/tcp, 9001/tcp, 0.0.0.0:2456-2458->2456-2458/udp, :::2456-2458->2456-2458/udp   valheim-2025
d05fe4348349   milkybot-openai                   "python main.py"         3 months ago     Up 3 months                                                                                       milkybot-openai
b6be336240c4   nginx:latest                      "/docker-entrypoint.…"   16 months ago    Up 4 months                                                                                       nginx
9482545a4525   grafana/loki:2.8.0                "/usr/bin/loki -conf…"   16 months ago    Up 7 months                                                                                       loki
9466b4449a81   grafana/promtail:2.8.0            "/usr/bin/promtail -…"   16 months ago    Up 7 months                                                                                       promtail
6efc468ced40   prom/prometheus:latest            "/bin/prometheus --c…"   16 months ago    Up 7 months                                                                                       prometheus
14834d0e2065   prom/node-exporter:latest         "/bin/node_exporter …"   16 months ago    Up 7 months                                                                                       node-exporter
f4414e128ed5   grafana/grafana                   "/run.sh"                16 months ago    Up 7 months                                                                                       grafana
radiant@milky-way:~/valheim-2025$ sudo ufw status
[sudo] password for radiant:
Status: active

To                         Action      From
--                         ------      ----
22/tcp                     ALLOW       Anywhere
3000/tcp                   ALLOW       REDACTED
8101/tcp                   ALLOW       REDACTED
8102/tcp                   ALLOW       REDACTED
Anywhere                   ALLOW       REDACTED
8103/tcp                   ALLOW       REDACTED
Anywhere                   ALLOW       REDACTED
Anywhere                   ALLOW       REDACTED
Anywhere                   ALLOW       REDACTED
Anywhere                   ALLOW       REDACTED
2456/udp                   ALLOW       Anywhere
2457/udp                   ALLOW       Anywhere
2458/udp                   ALLOW       Anywhere
2456                       ALLOW       Anywhere
22/tcp (v6)                ALLOW       Anywhere (v6)
2456/udp (v6)              ALLOW       Anywhere (v6)
2457/udp (v6)              ALLOW       Anywhere (v6)
2458/udp (v6)              ALLOW       Anywhere (v6)
2456 (v6)                  ALLOW       Anywhere (v6)

I have a feeling it might be firewall shenanigans because external tools show that 2456 is not reachable...

[final current]

Thanks. It will be difficult for external tools to know if 2456 is reachable or not due to the nature of UDP. That geekstrom site that @rough rapids linked can show you if the query port on 2457 is working, but only if it's a public server.

Your ufw rules look good. Hetzner does have an optional firewall for the dedicated server options. You may want to double-check that it is not active in your Robot console.

Then you'll want to check to make sure the public IP address for the server hasn't changed.

Then finally, consider that if you recently disabled Crossplay, Microsoft might still have your relay registration cached. When you try to connect to your non-Crossplay server, check the client logs (Player.log) for the Playfab queries when you try to connect. If you see a line like this:

PlayFab lobby matching search filter 'string_key10 eq '<external ip>:<external port>' and string_key2 eq 'True'': …

that ends in something other than zero lobbies, then the registration is still live with Microsoft. Players would either need to wait for it to expire or you could switch to a port your server hadn't registered.

Additionally, if players added a favorites entry for the server while it was using Crossplay, they would likely need to delete it and re-add it after the Crossplay registration expired.

[vestal pewter]

Thanks for the tips, I will try to troubleshoot following them. Didn't know about the cache and favorites readd, sounds reasonable

[final current]

Docs for the dedicated server firewall: https://docs.hetzner.com/robot/dedicated-server/firewall/
I don't recommend using it if you're already using UFW. You can end up unintentionally blocking all reply traffic due to it being stateless.

[vestal pewter]

I don't use it, it lacks flexibility and requires log in to the hetzner to make changes. It is much easier to ssh and do ufw commands for firewall updates

[eager quest]

has anyone ran their server on a NAS and had multiple people on it? if so, how did it perform?

[final current]

I run it on a DIY NAS. I know of no issues with multiple players specific to NASes. Crossplay will perform poorly with many players connected, regardless of whether on a NAS or not.

If you're using container bridge networking without Crossplay, there's a miniscule extra latency for the port forwarding, but overall still tends to perform well. Valheim Dedicated Server is not efficient at idling and you can expect a CPU core to have some utilization even when no players are connected. If it's an arm64 NAS, note you will have extra latency and CPU waste from whatever x86_64 emulation layer you decide on.

You will want to make sure the savedir is set to something that actually persists and is not temporary to the NAS or to the container if you're using one. If it's an Unraid NAS, ich777 has an image for Valheim that's pretty popular.

You should double-check how your NAS terminates apps or containers it is running. Valheim Dedidcated Server will only save the world on shutdown if terminated with SIGTERM or SIGINT. If you use non-ASCII characters in your world name, you might also want to check the NAS' default unicode normalization rules for the file system match the Unicode code points you are supplying for the world name. If they end up getting normalized to other code points, it can be weird.

[eager quest]

woah. while i greatly appreciate your info, I understood maybe half of it. I'm not that smart lol

[final current]

Well, my summary would be that it performs OK. Do you know how much free RAM will be available to Valheim Dedicated Server on the NAS?

[final current]

Cool, that's enough. A typical dedicated server on x86_64 Linux uses just under 3 GB.

[torn pecan]

Hello everyone, my viking friend has too much jitter to play on same server (previously was fine but now he moved very far away and we can't play anymore on my community server) can a dedicated server help on that? ChatGPT suggests yes, did you ever had similar problem? Do you think it will help?

I would use Hetzner

[final current]

For Valheim a dedicated server won't typically offer much difference in performance over the in-game server if the dedicated server PC would be playing the game anyway. Locating a server closer to the players by network link can certainly be helpful. A dedicated server might also give the remote player more opportunities to become chunk-leader and have periods where it is less laggy for them (but laggy for you)

Are you using Crossplay or not though? If you're using Crossplay, that can be the biggest factor in geographical connectivity woes.

[proven niche]

Your friend could also consider trying an internet tunneling service like CloudFlare's Warp application. It's free for residential use. And it could gdt him a 'premium' route between his PC and the Server location.

[torn pecan]

Thanks for your responses, we are not using crossplay, he is using mobile phone's hotspot to play on PC

yeah

Facepalm indeed

but when we were in same city was not a problem

[knotty oracle]

Well, that would be expected.

[torn pecan]

now he moved like 1.5K KM

Are we cooked?

[proven niche]

Sorry, can't type right now... Laughing too hard... 🤣

[final current]

I was skeptical, but sometimes when Jaga recommends Warp it ends up actually helping, I think mainly thanks to the Argo routing. It's a cheap thing to try before springing for cloud hosting at least.

[proven niche]

Well, have him move it all to the first floor so the data doesn't have to go uphill back and forth. He needs every little nudge he can get. Maybe open a window on the side of his house facing you.

Don't laugh. I have noticed that the lady living next door always goes outside when talking on her cell phone. She says she gets more bars that way. So...

[knotty oracle]

Some buildings can certainly act like weak Faraday cages.

[proven niche]

I'm not sure CloudFlare Warp would help at all in this case. Maybe just inprove the route between his PC and his cell phone? Probably not a huge improvement.

When you 'tether' your PC to your smart phone, can you do that with ethernet cable instead of a Wifi hot spot? He might investigate that, at least.

Google's new AI chat bot says: "Some phones and tablets might support using a USB-to-Ethernet adapter to connect to an Ethernet network. However, this requires the phone to have a USB-C or micro-USB port that can accept such an adapter and the phone needs to have the necessary drivers for the adapter to work." I'm pretty sure he (she?) was serious about that, too.

[torn pecan]

Ye I searched, thanks Jaga

Hope to make you laugh again soon

🤝

[proven niche]

Thank you! There's not a lot to laugh about these days. So every little bit helps.

[vestal pewter]

My issue got resolved by running valheim container on the host network (--network host). For some reason my docker fails to bind the udp ports, idk what is going on there, but it is definitely not a valheim issue at this point

[neat hearth]

Is anyone around that is able to help get a dedicated server goin? Keep having connection issues?

[final current]

Intermittently disconnecting or not been able to connect at all?

[neat hearth]

Can connect locally but not from Public IP

[final current]

Alrighty. Is the server using Crossplay or not? And have you forwarded the ports in your router?

[neat hearth]

Me as the extrovert is initiating this convo, @lean folio Is the one building it

[lean folio]

hi.

[lean folio]

i removed the -crossplay in the bat file. and currently i have the server in the router DMZ and windows fire wall off.. so its naked as can be.. still cant connect.

i also tried putting -public 1 in the bat file.

i can connect on the lan. so its working in that area.

[final current]

Alright. In your router's administration tool/pages, can you compare the WAN IPv4 address reported there with the address you see at https://checkip.amazonaws.com/ ?

[lean folio]

so the what's my ip. and the amazon one is reporting a different public ip then i see in my router.

[final current]

OK, does your router one start with 100?

[lean folio]

yes

[final current]

Then I'm afraid to say your WAN is actually just another LAN at the ISP. An increasingly common conundrum: https://valheim.fandom.com/wiki/Dedicated_servers#Working_with_Carrier-grade_NAT_(CGNAT)

[lean folio]

ok so its my ISP that's acting as the firewall stopping it.

so i wonder why it works when i share my local game with friends?

im guessing steam is doing some magic?

[final current]

If you're using Crossplay with the in-game server, your friends are connecting to one of Microsoft's relays instead of directly to your server (even if you give them your external IP). If you are using a personal VPN with your friends, that might also be facilitating the connection. If your friends are on the same LAN as you, the LAN IP will work.

If it works when you're using some kind of Steam-facilitated sharing but not using Crossplay or a VPN, let us know. I'd be curious about this setup. Supposedly Steam has relays but I don't know if Valheim takes advantage of them.

[lean folio]

sadly my friends are across the US so no lan option for that. most of the time i just send them a game invite and they can play in my world on my pc. "until i stop the game". so it has to be using some relay magic stuff.
i was hopping i could setup a spare pc as a server so they could just join when ever.

[final current]

I'll have to play with the Steam invites more. In the best case scenario, it could use UDP hole-punching with a STUN server to trick the routers between to allowing direct traffic flow.
(If anyone else knows more about what network modes Valheim can use with these Steam invites, feel free to chime in.)

In the meantime, @lean folio, if you do want to host a dedicated server for your friends, I would just call your ISP and ask them if you can opt-out of carrier-grade NAT. You can be honest and tell them you'd like to host a game for a couple friends. Worst case, they say no. Some ISPs will offer a higher-cost "static IP" option that includes a non-CGNAT IP address. Many will give you a plain dynamic external IP address for free just by asking.

[lean folio]

i think zoom? or something like that use to do the hole punching magic stuff to get past NAT.
so thanks for the help.. it looks like ill either have to do that with my isp or get a vpn to route into my network.

[final current]

It's a pain to call them and try to get someone technical on the line, but you probably wouldn't have been the first one making that request of them.

[neat hearth]

We have Starlink sooo We'll see how it goes....

[final current]

If you have the Local Priority or Global Priority plan, you can actually opt-out of CGNAT from the Account Dashboard: https://www.starlink.com/support/article/13f0056c-6f6d-5a55-623c-fe94ad9947c5

[neat hearth]

We have residential

[final current]

Ah, yeah, makes sense, sorry, wish there were more options :< They will allow a residential customer to transfer to a Local Priority plan. You pay for a certain amount of high speed data depending on the plan level, and if you exceed that much data transferred, your are lower speed for the rest of the month unless you "top off"
https://www.starlink.com/support/article/1124df77-fdec-91e7-bed9-ba489cffda25

I have no advice on whether or not that would be worth it.

[neat hearth]

Maybe have a seperate Starlink plan for the server itself... Our kids are data hogs and we go through 1TB= a service month

[final current]

Makes sense. The 1TB and 2TB tiers for Priority are expensive unfortunately.

[neat hearth]

Yes I have noticed that...

[neat hearth]

Do you have any suggestions on other work arounds? whether by other ISP or online server host?

[final current]

gurublade mentioned some of these:

• Valheim's built-in Crossplay, which uses Microsoft's relay servers. Friends would connect using the join/invite code (or optionally your external IP). They can be slower sometimes, but it's easy and built-in.
• VPNs that let you create a virtual LAN with your friends, examples like TailScale, ZeroTier, RADMIN, Hamachi. I don't have a specific recommendation to give amongst those. They all require some up-front setup for whoever will be joining.
• Those Steam invites with the in-game server
• Third-party hosting provider (e.g. Nitrado, GTX Gaming, Supercraft, DatHost, GPORTAL)

If you have other ISP options in the neighborhood, wouldn't hurt to shop around. Many might take kinder to public IP requests than Starlink, or even have public IPs by default.

[neat hearth]

Guru is my Husby and very techy, I'm just the extrovert that asks questions lol

[lean folio]

my work friend just gave me a cisco small business router. it has 2 WAN ports, so i could in theory have one to starlink and the other to a local isp with a public address.

[final current]

Sure, sounds a little complex but fun

If you end up using Crossplay, I recommend choosing a random port higher than 2456 so you aren't competing for that slot with another Starlink customer. You could give the other players the current invite/join code so they don't have to think about the port.

[lean folio]

so i have a twingate setup for server maintenance currently setup. ill poke around and see if i can get them to join that way.. thanks for all your help.

[final current]

You're welcome. Good luck

[tough pivot]

i had a pc crash and now valheim server refuses to launch :( reinstalling didn't help

can someone take a look?

06/07/2025 09:56:05: Worldgenerator version setup:2
it hangs a little on this line and crashes spitting rest of the text in no time

@wide cipher maybe you know what's up?

nevermind, i'm so stupid. I added -online 1 instead of -public 1 in args. i think what happened after that is it crashed and didn't free port used for game, so all next startups were doomed from beginning... it works now

[wide cipher]

https://tenor.com/view/leonardo-dicaprio-clap-slow-clap-good-job-nice-one-gif-15897348731402158760

[rough rapids]

Anyone know if this works for a Valheim Docker?

[final current]

To the best of my knowledge that won't work. Is it an AI-generated instruction?

You can certainly run Valheim Dedicated Server inside a screen session if you want. The popular LinuxGSM suite runs the server inside tmux sessions, which are similar.

All that aside, I don't think Valheim Dedicated Server accepts any text, whether commands or otherwise, via stdin. If you need to ensure the world saves before a shutdown, note that a regular SIGINT or SIGTERM (such as from docker stop) will trigger a save before the shutdown. I recommend setting a wide enough --stop-timeout in your run to give Valheim enough time to finish the save. I think I use 120 seconds. https://docs.docker.com/reference/cli/docker/container/run/#stop-timeout

Because there's no stdin handling in Valheim, screen or tmux would be mostly redundant in a docker container. Most of their features you'd already have from your docker runtime alone. You can run the container with --interactive --tty and later attach to it with docker attach if you needed to interact like you would with an attached screen or tmux (but like I said there's not much interaction to be had with Valheim Dedicated Server)

[final current]

An admin player can also use the save command while connected, either in the Console or in chat with /save

[rough rapids]

Thanks for the elaborate reply.... i was just looking into the suggestion (yes its AI generated) and it looked interesting

[final current]

Yeah, understandable. It would certainly be handy if you could use some of those commands from stdin.

Some games do, and that's probably where the AI learned of such a process.

[zinc phoenix]

i can't on my Server not God, Fly and Admin commands 😦

[final current]

These are not supported by vanilla Valheim when connected to a Dedicated Server. If your player is on the admin list for the server, then you could potentially use a mod on the client like Jere's Server devcommands to enable those.

The few commands in this list should work without a mod though: https://valheim.fandom.com/wiki/Developer_console#Admin_commands (click Show Commands under Admin Commands)
as well as setworldmodifier and setworldpreset

[zinc phoenix]

i'm in me admin-list, but in-Game stand you are not admin 🤔

[final current]

Alright, is this a Crossplay server or no? And what is the format of the entry you added to <savedir>/adminlist.txt?

[zinc phoenix]

I have Cross enabled and I have a Steam64ID in one line (ONLY mine)

[final current]

Try it with platform ID prefix included (pretty much exactly what you see in F2 in-game display). I think It's something like Steam_…. I believe this is required when running a Crossplay server due to it having multiple identity sources possible.

[zinc phoenix]

Ok, thanks for the idea, I'll give it a try 🙂

no sorry this is it not 😦

[final current]

So the line looks like Steam_6385748285629?

And it matches what you see for your player in F2 dialog's connections

[zinc phoenix]

yes is not goging

[final current]

If you have a custom -savedir make sure the file is in that exact directory. And make sure it doesn't have any extra extensions that are being hidden by your file manager. You may need to restart the server for changes to take effect.

Also, if this is the Apple App Store dedicated server, the real savedir can be hidden inside the sandboxed container

[zinc phoenix]

I could give you access to my root server so that if you would be so kind and of course have the time, you could take a look 🙂

[final current]

I'll be home in about 15 minutes and will DM. Is it Linux, macOS, or Windows?

[fierce sandal]

im not sure if this is mod or dedicated server issue

also it shows this icon instead of the 0/16 whatever player amount, so is there some port forward or some other issue then?

oh weird, found the issue, somehow the favorited server was not connecting but when I went to community tab and searched it there then it worked

[final current]

If players are directly connecting (not using Crossplay), then there's a chance your public IP address is changing. You could potentially give your players a domain to connect to to add to favorites for something that is kept up to date, but as you've found, the community view could be used as well.

If you go the domain route, there are Dynamic DNS services out there that can work with an agent on your server or your router to keep a domain name record up to date.

[wild blade]

how do i start a modded dedicated server, ive already done vanilla so i have port forwarding done (i wanna do a manual one no thunderstore)

[proven niche]

I just download and install the dedicated server tool from steam simply and manually. Then, update the server's options as you need them in the start up file. Forward your ports if not using crossplay to support Xbox players.

But, I do use the mod manager's profile to keep track of the mods and let me know when there's an update for one or another of them.

Then, I use that profile's plugins folder to copy/paste those mod(s) to the server's plugins folder manually as needed. For me it works.

It's the best of both worlds manual and managed.

[wild blade]

How do I actually open it do i need to edit one of the .bat files or anything

everytime i do it opens cmd and then it like goes through the process and auto closes which is why i came looking for help

[proven niche]

The server has it's own .bat file for holding it's options and starting the server. You run the .bat file to start the server. You may have one of the mods that prevents it from running. Check that the mods are all current for the BogWitch game version.

You can add the -logfile "...path/server.log" option to the .bat filel and review it after a failed start to see where the problem is.

[wild blade]

how will i know where an error is

[proven niche]

Look for any Error that doesn't complain about a shader. Those non-shader errors could be significant.

[fierce sandal]

remember you need to have %* at end of the bat file

inside the file where you set the name, password, ports etc. just at the very end put %* to apply mods

also my own question: I have unmodded dedicated server bat file and then I have 1 with mods, is there some easy way to run that vanilla server without mods so I dont have to remove them from the server folder?

[proven niche]

Well, you could temporarily rename the plugins folder to xplugins for a vanilla run. Or you could make a whole separate folder for the other server entirely to keep everything easier to manage.

[wild blade]

this is the error im getting, ive deleted the files and its still happening

[knotty oracle]

Ugh, paid mods.

[proven niche]

Yeah, that's a pay for play mod. It works for free on your solo game but put it on a server and it crashes the server unless you pay him money for it.

[tough pivot]

i see nothing wrong with that tbh

[knotty oracle]

Well, it's in breach of the TOS for one.

[proven niche]

This is what's wrong with it: https://www.valheimgame.com/news/regarding-mods/
That's the official developer stance re: mods. Directly from them.

[tough pivot]

can you show where it's stated? I can't find those for some reason

this one?

[tough pivot]

https://www.valheimgame.com/eula/
i think those are rules for content creators (mainly on video sharing platforms) stating which content they forbid. impersonation of their company, making money of re-uploading their official videos without additional content (so reaction videos are still allowed and can be monetized as stated in rule 12 and 13) and a bunch of other sane rules aligned with that

[tough pivot]

and as for this one they just publicly stating that they don't support it and encourage to make all mods for game free to use. Which i understand and approve, but i can't see "forbid" or "forcing" wording there

sims mods and some minecraft shaders are also pay to use and i can definitely understand why it's like that. some mods require a lot of effort and time, and as long as you don't sale it as official game content and mod by itself has a clear value I think it's perfectly fine

[rough rapids]

-- fixed it, i had the wrong syntax for mbround18 valheim docker -- ✅

[river vortex]

i can't start server dedicated. does anyone can help!!

[final current]

Your log looks great. No issues that I could see. It's still generating your world as of this snippet's cut-off point.

[final current]

Cool. Let me know if you have any feedback for lloesche's image. Was going to submit some changes at some point in the near future.

[river vortex]

you see the end. it has been waiting like that for about 15 minutes, and i also cant find the server when i enter the game.

[final current]

the last message is still "No instance when setting progress! Ignoring." after 15 minutes?

[river vortex]

Yeah I tried waiting for it to finish but it still doesn't change anything.

[final current]

I see you're using Windows. One notable issue is that the Command shell will block the underlying application if you enter QuickEdit mode, e.g. by clicking inside the window. If this ends up tripping you up, you can disable it:
https://learn.microsoft.com/en-us/answers/questions/2102924/how-to-disable-quickedit-settings-in-windows-11
or https://stackoverflow.com/a/30517482 for more complex ways

But if you are getting passed the world generation and still having issues, feel free to post a longer log with messages past that point. If you're unable to see it, does that mean unable to see it in the Community tab despite starting with the -public 1 argument?

[river vortex]

I will try to report

[river vortex]

I have tried both of your advice solutions. But they are still the same. I can give you the server information, can you help me to check.

[rough rapids]

Well according to some troubleshooting, i ran into the issue where if the server is started vanilla first and then you want to run Bepinex afterwards, it will no longer switch to "modded" type. even if you force it. You may have to reinstall the entire docker.

Running on mbround18 docker image now. Its running quite well, though i need to reboot it to activate mods and people are playing on it now.
The funny thing is though.,.we seem to be running into a few more lag/stuttering issues on this one though... we didnt experience them on loesche's image. So its like its just a tiny bit more performance heavy.

And my server at the moment is barely doing anything else tbh. Specs: Core i5 10500T, 32GB 3600Mhz RAM, NVMe SSD.

[final current]

Looks great. If it's taking more than 20 minutes and you've made sure to disable Microsoft Command QuickEdit, make sure your OS isn't using swap memory, which will slow down world generation quite a bit.

[river vortex]

but i can't find my server. i have enter IP:Port to try to connect. but all failed, can you try that for me. this is my Ip
165.232.161.134:2456

[final current]

Sure, give me a minute, did it get past the world generation progress updates yet?

[river vortex]

yeah.

I can enter the game now. The window does not close automatically in quickmode. I need to restart it twice.

[final current]

Cool, and yes, I'm able to connect now via Crossplay.

[river vortex]

+1 respect

tks sir

[pliant iron]

I have a question about dedicated servers. Does everyone playing on a private dedicated server have to change their firewall settings to join? I thought I set up my network with port forwarding and added exceptions correctly. Locally I can even connect to the server no problem. But each time my friend tries to add the server via steam server view we get hit with a failed to find the server. Been trying to address this for months but the only way I can get a permanent server up is with crossplay enabled and that has it's own issues.
[01:21]
anyone have any experience with this?

[final current]

Most OS and router firewalls will allow outbound UDP and the server's replies back making it easy for client-side game setup. If the other players can connect to a Crossplay relay, they should be able to connect directly to you too (assuming they are on the Steam version). The issue is more likely to be with the server router's NAT port forwarding or your ISP.

The first two things I would look at are:

1. Does your ISP use CGNAT for IPv4? https://valheim.fandom.com/wiki/Dedicated_servers#Working_with_Carrier-grade_NAT_(CGNAT)
2. Did you forward UDP for both ports? TCP will not be used for gameplay nor Steam queries

[pliant iron]

I did so for both ports. I'm guessing its still an ISP issue. I guess crossplay will just have to dofor now

[final current]

Well, it won't hurt to find out for sure. Check your router's self-reported WAN address and compare it with what you see at https://checkip.amazonaws.com/

[pliant iron]

both are the same from the link you sent and whatismyipaddress. I'm assuming that's what we want to see if it's not an ISP problem

[final current]

Yeah, if your router's WAN port gets a 100.whatever address from your ISP's DHCP server or it doesn't match your external address, that means you likely have CGNAT. If they match, then that's probably not your problem

Is your server up now? Happy to test a connection.

[pliant iron]

they match but it starts with 36.

[final current]

Cool, 36 is an Internet range.

[pliant iron]

sure we can try it. would having a static LAN IP hurt or help in this case

[final current]

A static LAN ip helps, it means your forwarding rule will be stable—you won't have to keep updating it.

[pliant iron]

Thats a good start then. So I only need provide you with the server IP then?

[final current]

Yep, assuming crossplay is disabled you would give me the external address. You can DM it if you'd prefer.

[pliant iron]

sending you now

[compact dragon]

Why is my no cost not turning off? I run my server through Havoc. I turned the setting on by clicking the box but now it won’t turn off

[rough rapids]

@final current
Appearantly mbround18's image has Huginn Web UI integrated in the image. It should be starting now that i enabled it, and the game server is running fine. But whenever i go to the URL it says:

[final current]

I don't know how the web UI works off-hand. If it uses the Valve/Steam query port then the server would have to be public and non-Crossplay to work.

I won't be able to dig much deeper today, travelling. Mbround is around here sometimes and you might be able to ask them.

[rough rapids]

ah, cool 👍

[raven cloak]

Hey gamers, I'm trying to spool up a dedicated server and I do not see my world save in the AppData folder under Users or in my steam cloud saves. Anyone run into this?

I see my world save data in the worlds_local folder, but not in C:\Users"me"\AppData\LocalLow\IronGate\Valheim\worlds

[final current]

Sure, it won't be hard to find, but before we do, are you planning on running the server on the same PC as your game client?

[raven cloak]

Yes.

[final current]

It can be dangerous to have the server pointing at a world that is also cloud-managed. You can accidentally promote a version of the world you don't intend or worse promote a blank/fresh version of the world.

If you haven't already, you may want to create a new directory to use as your server's savedir. This directory would host the admin/ban/permit lists as well as the server's own worlds_local dir. You would pass this new directory in a -savedir <path> argument to the server launch.

If you don't want to have a separate savedir, you may want to switch your world to locally-managed before going forward using the Manage Saves dialog in the game. That way the game client's cloud syncing will not conflict with the server's non-cloud-aware world management.

If you do create a separate savedir, you would copy the existing worlds in <savedir>\worlds_local before starting the server.

[raven cloak]

So, in game, I would need to Manage Saves -> Move to Local the world in question?

[final current]

If you really wanted to share the same savedir between the client and server, yes.

You can try to back up your world before any of that. If it's cloud managed, the most recent local sync can be cached in one of these two places:

• %USERPROFILE%\AppData\LocalLow\IronGate\Valheim\worlds
• %ProgramFiles(x86)%\Steam\userdata\<steam user ID>\892970\remote\worlds

You're looking for the .fwl/.db file pair with a modified date matching your last play as well as some decent size to the .db file if it's an established world.

[raven cloak]

The issue I'm running into is that the save is in neither of those locations.

[final current]

Are there any worlds in your Steam remoting dir?

[raven cloak]

Ignore me, I was looking at the steam folder that just points to my appdata folder.

I have located the save.

[final current]

If you've already accidentally started the server while you had a cloud-managed world, make sure to back up that cloud-managed save before it has a chance to be overwritten. The .db file should be several MB in size if it's an established world.

[raven cloak]

I haven't touched the server tool as I wasn't able to find the save, so that isn't a worry.

I think I may be misunderstanding so I wanted to clarify:

Move to Local OR Make a new directory are my two options to avoid save conflicts?
I'm fine with it saving locally so I'd rather manage it local if there aren't any major drawbacks.

[final current]

Cool. You can do both. A locally-managed world will be in worlds_local. If you switch a cloud-managed one to local management, it will be copied there.

If you haven't specified a -savedir argument to the server start, it will share the same worlds_local dir as the game client.

[raven cloak]

Do I manually backup within the game or do I simply copy the .fwl and .db files and then use those?

[final current]

I would manually back up somewhere first (just in case). If you are planning to have the game client and server share a worlds_local, the copy itself will be performed when you switch the save to local management.

If you're using a separate -savedir for the server then you would be responsible for copying a world file pair to <savedir>\worlds_local.

I'm landing now, so will be AFK. Good luck!

[elfin coral]

so...i made a world on windows and uploaded it to my raspberry pi 5, trying to get a server started...and i'm getting into this kind of trouble:

how do i get the shaders to play nice?

[final current]

You won't, even on x86_64, a headless server will see those errors (and be fine).

They are probably not the source of your segfault. You will want to make sure that the Steam libraries and libparty.so are under your x86_64 emulation scheme if you haven't already. And note libparty depends on libpulse and libatomic

If you run without -crossplay you may be able to have it work without libparty working, but it will only work with Steam game clients and all networking will be up to you if you do that.

[frozen zephyr]

Unable to preload the following plugins: libparty.so problem one

[fallen thicket]

Would there be a Linux setup and dependency guide?

I am attempting to setup a Dedicated server to try and prevent a rather anoying GPU crash if I play and host at thew same time. I can get and start Valheim through PufferPanel on Linux, but I think things are missing as the server does not start. So a starting point would be nice.

[final current]

Sure, feel free to post the server logs from the start to where things end up. And does the process just exit or does it stick around?

[fallen thicket]

Let me get the log and get you a link.

[fallen thicket]

Mind if I PM you the log file?

Also looks like the process ends and does not hang abount.

[final current]

Sure, no prob. I'm heading to bed but can look in the morning. Feel free to obfuscate IP address or home directories.

[elfin coral]

What terminal commands do I need to run?

[final current]

What x86_64 emulator are you using?

I would install libpulse (and libatomic if not automatically pulled in) using your distro's package manager. If your emulator is Box64, then I'd recommend:
export BOX64_LD_LIBRARY_PATH=./linux64
that's assuming you're running it from the main server install dir, but you can make that an absolute path to anywhere your linux64/steamclient.so is.

[elfin coral]

FEXBash

I'm using ubuntu 24.04.2

[final current]

Cool, then start with the libpulse/libatomic install and see if there's a way to manually mark libs to be emulated/wrapped if it doesn't pick up libparty and steamclient automatically. Heading to bed, good luck!

[elfin coral]

Cool, thanks.

[final current]

You may also need libpulse-glib loop library too if I recall. Don't remember exact name

[elfin coral]

ok...i found where my libparty.so file is...how do i point to it so the script can find it?

@final current

[final current]

Valheim Dedicated Server should find libparty.so on its own if its downstream dependencies like libpulse, libpulse-glib-mainloop, and libatomic are satisfied, but your x86_64 emulator may need a hint what libraries to auto-wrap. I'm afraid I don't know FEXBash well enough to advise. Maybe someone else in here has experience with it

[river vortex]

I just reinstalled the OS for the server, from Win 10 to Win Server 2016

anyone know what's wrong with it. It's been there for 15 minutes.

[limpid echo]

***As it stands the server host doesn’t see any reason why the way I’ve added the modpack to the server files would crash the server on startup.

The modpack owner basically said “can’t help try my sponsored server host instead”*** <--- is what my mate said And the mod is Road to Muspelheim & Niflheim

[plain trellis]

Have you checked if the new OS has all the 3rd party software that modding /running Valheim might require?

[river vortex]

I don't see any other software reminders. Currently I only downloaded from Steam and started the .bat file

[proven niche]

When starting the server from the .bat file, you'll need to be logged into Steam while the server starts up. Once it's running, you can log out of Steam on that PC.

[river vortex]

I have steamcmd and even steamclient, I have logged in them

[proven niche]

Using SteamCMD to install and run the server should log you into Steam anonymously automatically. Starting the server from it's .bat file without SteamCMD doesn't auto log you into Steam.

[river vortex]

tks you, i'll try and report

[plain trellis]

I don't know all of the mods in your log, or if they depend on some 3rd party software that Win10 have included, but maybe a server OS don't have. Like .NET and DirextX

[river vortex]

i'll try

[fast warren]

Is it possible on dedicated server to have the server auto-kick someone after a period of inactivity?

[proven niche]

I think you'd need a mod to do that. And I'm not even sure there even is a mod for that.

[fast warren]

ah, alright. thanks!

[urban olive]

I think you can build that with Expanded world prefabs mod. Which is a server side only mod. However it not a ready made mod with this specific feature you request, but rather a server side mod that lets you build your own rule sets. I don't have complete rule ready for you but you have to poke all players from there you poke self with a delay that has the length of afk you accept. And any player event that cancels the running event and poke self again with the same delay. If the poke with is received at the player then you kick that player. Don't make the timeout too short because since Valheim is client based not all actions are send to the server. So just walking around is seen as AFK. But things like switching tool/weapon is an action. So is killing things looking into containers etc.

[fast warren]

gotcha, the reason im looking is i have some people who tend to AFK/fall asleep/whatever they're doing while im asleep and the zones they are in just keep running.. raids happening etc. while im not around

[urban olive]

There are enough actions to kick them after 10 minutes or so as there is no valid reason to only walk and never hurt something or being hit or not interact in any other way. Just don't expect it to be valid for really short periods like 1 minute or so.

[fast warren]

yeah 30 minutes is what I was thinking

[urban olive]

That will most likely be on the safe side. I have been playing with EWP now a bit. A lot can be done. But because the game is client based you sometimes need to be very creative to force the client to give you the information you need. I have been working on server side anti cheat. And server side characters without need for a client side mod. I have thing build half way now and can read and write the user inventory with a workaround. Which is said that it cannot be done, and if you just use the RPC as intended they are right. But if you abuse them in not intended way you can do more then designed.

[fast warren]

interesting. I like that it is server side only

[urban olive]

I understand that the Valheim devs are not in the mood for redesigning the whole multiplayer part of the game. As it would need big changes to make it more server driven. But if only they would add a few more RCP messages that would give the servers more leverage to get more information from a client when needed that would make many things a lot easier. One that is missing the most put all in container, which would be really simple to make for the devs as it is almost the same as stack all in container.

There are more things that i am already able to block. For example i do not like the plantall mod because it defeats the aspect of gathering. So i block that mod server side. Sure you can load it and use it, but the server recognizes the illegal planted stuff and removes them within a split second. I can even say which rules apply so if i want to allow it but only if planted in the correct biome that is also an option.

[knotty oracle]

You don't have to block a mod to not use it. You can just...not use it.

[plain trellis]

If you have a open server, it would be hard to enforce that, without forcing everyone on the server to use the same mods that the server has loaded. And by that exclude players not able or want to use mods.

So I like the idea DragonEmperorLS is presenting here.

[knotty oracle]

If you need to enforce something like that you're playing with the wrong people.

[plain trellis]

If you like to play with randoms on open public server, that's cool. Who are we to say that people shouldn't pursue that idea? Yes, Valheim as of now, aren't build for that, but people are allowed to have visions. And do what they can to achieve them. Better networking code in the game would benefit us all, so a multiplayer session aren't that dependent on players local network and PC/console hardware, or variable latencies across the party.

[knotty oracle]

It'll only really benefit those who play on multiplayer and have poor connections.

[agile pecan]

Obviously, it would just benefit mp, but the networking code has serious issues, not just if you have a poor connection.

[knotty oracle]

Not from my experience but the people I play with are only about 100mi away.

[agile pecan]

Never had ore or cookable food dissappear into nothing when someone else was the zone owner?

[knotty oracle]

No?

[agile pecan]

Huh, probably more like to happen with crossplay

[knotty oracle]

Ah, well that's a different issue all on it's own. Not had to deal with that, thankfully.

And not really something IG can fix

[agile pecan]

That's not true, at least not entirely. A lot of this networking issues are just amplified by crossplay, the root cause is the net code. For example, in case of the dissappearing ore, it happens because the client removes/destroys the ore from the player inventory and then sends a RPC call which tells the owner to add one ore to the furnace. If the RPC call is never received by the owner, the ore is "lost". The call never reaching the owner is just more likely with a bad connection or crossplay, but can happen for everyone. Since UDP is used for the communcation, the game should be prepared to handle package loss.

Or maybe it's because the client has outdated information when checking if the furnace is already full making it think it can still add ore while the owner discards the calls because the furnace is already full.
Either way, IG could definitely fix this.

[plain trellis]

Could this be part of the reason we sometimes can "overfill" the kiln/furnace by a few units? I've never noticed missing food or ore in my 1400 hours of playing the game. But then I've never collected exact amount of items for what I need them for. I'm more of a "I'll gather 100 or so, then 100 more, and get even more when I need to." So I could easily "lost" units on the way, and never noticed.

[agile pecan]

Probably, but I have not looked into that.
Looking a bit deeper, it seems like the steam backend handles reliability/package loss for them (so they can use it much like a TCP connection) while they have to do it themselves for playfab.

[eager quest]

@agile pecan I just downloaded your server-side qol mod, is there a way to autofill the torches and camp fires as well?

[final current]

Hit up #mods-discussion for better support on those kinds of queries

[static arrow]

Hello, me and my friends have rented dedicated server for valheim with mods, yesterday I changed valheimplus cfg file and then restarted server and suddendly the server wont load. The bepinex says that it was loaded properly, however there seems to be error with world generator. Idk Why. Does anyone has an idea how to fix, or did you encountered this error? My idea is that maybe backuping and reinstalling could help, but idk.

[static arrow]

also restoring backups of the world does not work

and we have no world gen mods installed

[static arrow]

when I download 6 days old backups of the world and put in in my local saves folder. When I launch game and open menu it says BAD VERSION. I use the same mods as are used on server

[proven niche]

This channel here is for dedicated servers that you've installed yourself at home. We can't really help with servers that are rented from game hosting companies. For that you would use the hosting company's support.

But since your problem seems to be mods rather than just the server, you can ask about it here in one of the #mods-issues channels and see if they know about it.

[spare meadow]

So the server just deleted my world and made another one with the same name. Where can I find the backups so I can put them instead of the new one?

[plain trellis]

There should be multiple backups in the worlds_local folder. At least it is in my server.

[spare meadow]

and how do I change that with the current one?

[plain trellis]

Rename it

[spare meadow]

I have .db and .fwl files

which one is the world?

[plain trellis]

both

[spare meadow]

do I change the name of the bottom one?

[plain trellis]

The world-files are stored in pair, db and fwl. Take a previouse pair that you would like to "test" and remove the "_backup_auto_numbers" part. Move your original db and fwl out of the folder, if you like to keep them,.

[spare meadow]

alright, got the old world but the buildings are not here, my base disappeared

[final current]

None of those in your screenshot look populated unfortunately, but still might want to copy them somewhere before going further just in case. Was this on the same PC as the game client?

[spare meadow]

Yes, strange things happened but just made another world

[spare meadow]

Also world modifiers dont work for some reason (at least resource rate). Anyone knows why? I'm pretty sure that the command is good
-setkey ResourceRate 200

[plain trellis]

Have you checked your steam account?
https://store.steampowered.com/account/remotestorageapp?appid=892970&index=0

And if you create a new world with idencial name as previouse, the game will overwrite old one.

And does your server setup take additional backups?. My docker setup does, so I have zip files of the worlds histories.

[left creek]

Anyone wanna play on a newish dedicated server?

[proven niche]

You can find players who are looking for servers over in this channel #1024264966712340510

[proven niche]

When you do the command in your F5 console, you don't need the - character with it. Just do the** setkey ResourceRate 200**. Then you can do the** listkeys** command to see that it got set ok.

[spare meadow]

It is not in F5 console, it's in the file of the server with the other configs

[final current]

Is this Linux, macOS, or Windows?

In your copy of the batch file or shell script (if on macOS or Linux), put doublequotes around "ResourceRate 200" so that it is used by cmd (or your shell interpreter if on macOS or Linux) as a single argument value to the -setkey argument.

If this is a docker container, note some images won't re-eval args before passing them to the program so may not be able to work with grouped arguments like that

And while you're there, consider using a separate -savedir for your dedicated server to avoid world management conflicts with the cloud-aware game client. It's very dangerous running the dedicated server on the same system as the game client, moreso when they share a savedir.

[plain needle]

It's been over a year and this Ashlands lag has not been fixed? I was excited to jump back in but it's quite literally impossible to play around. Teleporting mobs, dropping through the ground, instant death. I don't understand how a year goes by without optimization..

[proven niche]

Ashlands lag seems to be more or less ok for most folks. Why is it so bad for you? Are you on solo game or server? Using crossplay? Got any mods? You on PC or console? Wifi or ethernet cable?

[plain needle]

Vanilla, beefiest computer you can buy right now and its still shit my dude

[proven niche]

Drat! Nothing left then but Karma, my dude.

[knotty oracle]

It was heavily optimised shortly after it was released.

[proven niche]

Derek, could you go see if someone put up a "Complaint Dept." sign over our door? Wouldn't be the first time...

[final current]

Yeah, it's still pretty bad sometimes in multiplayer. If it's an option for your crew, I recommend turning off Crossplay if you haven't already. Also, if you're playing with a friend with a less beefy box, there's a good chance they are the current chunk-master and are responsible for the lag you're seeing

[trim locust]

anyone know how to add mods to a dedicated server? i host myself, not a rented one

ive watched videos ect, and it just wont work

ive loaded mods on my normal PC that has the actual game and thats all good

but do the same methed on the dedicated, and its not working

[knotty oracle]

#mods-discussion might

[still turtle]

Hello I am back with a new issue i am experiencing with my dedicated server I have hosted on an external PC in my living room.

I am able to connect to it using my internal IP address on my personal PC that is NOT running the server

But my friend is unable to connect to the server using either the internal or external IP.

We have:

• Restarted the server
• Restarted the router
• Prayed

not sure what to do next?

[proven niche]

Check your port forwarding with the geekstrom.de/valheim/check web site.

Review your server's log file to see what is says about your friend's attempt to join.

Have your friend review his player log file to see what it has to say about his attempt to join.

[twin sun]

Hello, i came here from valheim reddit as i seek help with my dedicated server. When multiple players are on a boat and either sitting or holding fast, their characters start to wobble/jitter from side to side – but only from the perspective of other players. Everyone sees their own character normally, but others look like they’re sliding around constantly.

Important: This only happens when sitting or holding fast. If players just stand on the boat, there’s no wobble at all.
Server info:
Ubuntu Server - loasche docker image
Ryzen 7 Pro 8700GE
32 GB DDR5 5200 MHz CL40
System load is low – everything else runs fine

Any help or tips are appreciated!

[plain trellis]

It might be network issues, all players should run this test, to check if the networking hardware is up to par.
https://www.waveform.com/tools/bufferbloat

[hazy moth]

I just made a server through Valhost, does anyone know how I can change the world modifiers of the server? Thanks

[gaunt turret]

Are there issues with -crossplay running on a home grown dedicated windows server? What are the issues as to why -logfile c:\valheimserver\log.txt causes the server to fail to launch?

[proven niche]

Just guessing here but you can try to use -logfile "c:\valheimserver\log.txt" instead of without the quotes. And make sure your server has permission to write to the log.txt file.

And the -crossplay issues aren't especially worse on a dedicated server at your home than they would be at a hosting comany's site. It's all about the comm route and use of the extra hops involved with going through the MS playfab network.

[proven niche]

You could try the BetterNetworking mod on the server and on all player's games and see if that helps. I suspect it'll get worse as you get into the later game environments.

[gaunt turret]

-logfile "c:\valheimserver\log.txt" freezes up at the same place as without the quotes

[proven niche]

I thought it might. How about the permissions? Maybe try using a different destination path and name for the log.txt file to see if that makes any difference.

[jovial skiff]

Hi all, anyone got any good pages or videos on how to setup a modded server on Ubuntu Linux for a dedicated server, tried a few methods with Docker and no dice and no real fixes

[proven niche]

You'll probably get more help with mods in one of the mod channels.

[jovial skiff]

ah ok cheers

[final current]

What is it freezing up on? Feel free to share your entire command line w/ arguments, obfuscating private stuff

[gaunt turret]

C:\valheimserver\valheim_server.exe -nographics -batchmode -name "xxxxxx" -port 2456 -world "xxxxxx" -password "xxxxxx" -public 0 -modifier Resources muchmore -modifier deathpenalty casual -modifier combat veryeasy -modifier portals casual -modifier raids none -setkey passivemobs running this for a casual game - -crossplay prevents anyone from connecting with PC, -logfile freezes the startup at "memorysetup-temp-allocator-size-gfx=262144"

Just after line 29

[final current]

Are you sure it's freezing? I think it stops logging to stdout when you specify a log file. Anything in the log file itself?

[gaunt turret]

it does put info in the log file, up to that point, but then the server stops loading. I used to use the log file on every launch and the server would continue to load normally, but I had a record of any issues that happened that I couldn't scroll back to

[final current]

Well, the server will delete the prior session's log file on every start. If you still think it's freezing, what's the last few lines from the log file on a start you've let go for a couple minutes?

[gaunt turret]

let me set it up and let it run for a few, standby...

Okay...weird, yeah it's working... last time I ran a server (about a year ago) it logged to both screen AND file... anyway to get that functionality back?

If I recall, I used to have a wild card in there that added a date/time stamp to the log file name so it wasn't over written

[final current]

I'm not sure of a way to have logs copied to both stdout and the file out of the box. Iron Gate mostly uses Unity's logging framework and Unity may have changed their behavior for dedicated server in the way you describe. So, unfortunately, it's largely out of their control.

You might consider popping up a PowerShell and doing something like:

Get-Content "c:\valheimserver\log.txt" -Wait -Tail 30

to get the last 30 lines and keep sending more to the console as they come. Or if you're more used to cmd or MS-DOS, you can grab a Win32 build of the GNU utilities for Linux and Unix and do:

tail -n 30 -f "c:\valheimserver\log.txt"

Do note that you can actually get freezes using Microosft's Command terminal programs if you accidentally click inside the screen. They are more geared to desktop/workstation use than server. You can disable this by disabling the "QuickEdit" feature in whatever Command program you're using.

If you grab the GNU utilities, you can also take a look at what tee does and can use it as part of your batch file and drop the -logfile argument to do exactly what you want (pipe to both stdout and a file at the same time)

[gaunt turret]

Thanks Justin! I'll look into it.... 40 years of some pretty extensive batch programming, my current startup runs a batch file to update with steamcmd, then does a call to load up and run the server

tee huh? I'll look into it thanks!

[olive osprey]

Are there ANY big vanilla crossplay servers for this game because im really losing hope going and joining all the servers on this discord and all of them being complete dead ghost towns

[twin sun]

Thank you and also thanks @plain trellis i will look into that! Reddit kind of confirmed the same.

[gaunt turret]

Hey Justin, just thought I'd throw this in... Got it working! Logfile populates AND in terminal window. Powershell and TEE was this trick, thanks! Powershell commands:

cd
cd valheimserver

.\Update-ValheimServer.bat | Tee-Object c:\valheimserver\log.txt

update-valheimserver.bat is the batch file that runs the steamcmd update process, then calls the Start_headless_server.bat to launch the server

[final current]

Looks good!

[proven niche]

Apparently, you've already searched through the #1024264966712340510 channel here and found none. You could always post there yourself asking to form your own group of players wanting to start up a server with you. That might work.

[plain trellis]

The game supports 10 player in multiplayer, so I wouldn't see that as a big private server.

[soft tapir]

Hey, I know for quite a while, there was a bug with the dedicated server on linux when it came to enabling crossplay. Is that still an issue?

[proven niche]

Not exactly, no. There was never a bug with crossplay only for Linux. Crossplay has had the same bug for Windows and Linux both.

And it was never a 'bug'. It's the way crossplay works for both Windows and Linux the same. It forces the server and all players to communicate through the MS playfab network instead of directly with each other. That makes the communication more complex and can create problems that way.

[soft tapir]

I remember cross-play working when I set up the server on my windows laptop, but not working on my ubuntu-server...

[proven niche]

That was merely a coincidence in your case. It just seemed that way to you at the time.

[soft tapir]

It's been a hot minute since I tried, but I distinctly remember an issue with playfab. It would loop trying to initialize or something like that, and I saw a lot about it online as well, so I know it was not just me. There were some directions to install specific packages to help but myself and a lot of others were not having success.

Which is why I then set up the server on windows and it worked fine.

Are you trying to say that I imagined all of this?

[proven niche]

I am not 'trying' to say anything. I'm giving you actual and correct information that you didn't have. The things that happend to you at the time probably did actually happen. I don't know as I wasn't there, obviously. But you interpreted those things incorrectly because you didn't really know what was actually causing it to happen.

You are certainly free to continue to believe what ever you want as a result of your misunderstanding then and now. What you choose to believe is not my problem.

[bright tide]

confused as to why my gather rate is locked at 1x on my server. i have a dathost server, made a world, set it to 2x gather rate, and then we scrapped it cause it was a shit map and i generated a new one and put the gather rate to 3x but when i entered the world it was 1x. so i shut it down, made sure i set the gather rate correctly and saved it, rebooted it and again it was locked at 1x. anyone got ideas?

[plain trellis]

This discord doesn't do 3rd party hosting support. Only private, self hosted servers.

[final current]

There are still some library dependencies. Crossplay requires the MSVC Runtime Libraries on Windows for some audio and synchronization stuff, and on linux you'll need libpulse (including glib mainloop support) and libatomic. If you ever want to try getting it working in Ubuntu or any other Linux OS, feel free to reach out here if you encounter an issue.

For the most part, there aren't any Linux-specific Crossplay bugs that I know of, just different libraries needed. Many folks in here are running Linux Crossplay servers.

[final current]

Entered the world locally to test, or this is after you uploaded it to your host?

[bright tide]

i bought a server on dathost, went into the world modifiers on the website, changed it to 2x, then booted up the world. resources in the world were actually 2x. the seed sucked, so i scrapped it and made another one. did the same thing as before, but when we loaded in and started playing, it was 1x. so i went back into the world modifiers on the website to see if i accidentally didnt save them, but the were saved. and the resources are still locked at 1x.

[bleak zenith]

Hey folks, I have a dedicated server (my network, separate machine).
I can connect via internal IP and https://geekstrom.de/valheim/check/ reports the server is up and running 👍
Just yesterday, I could even find and join my server in the Steam client's server list.

I stopped the server, changed the -name and -world in the .bat, restarted the server, and now I can't find the server in the Steam client server list.

I can still join via internal IP in the in-game favorites menu.
I can add (can't join) the external IP in the in-game favorites menu, but it gets added w/ the old (incorrect) server name.
Tried changing port, same thing.

Seems like a cache issue on Steam's side, or locally somehow...?
Any suggestions?

[final current]

Can you show us your command line with arguments? Feel free to mangle anything private

[final current]

And if you had recently had Crossplay enabled, you'll want to wait for the registration with Microsoft to expire and re-create the favorites entry client-side if it had been created against the Crossplay-enabled service.

[final current]

Ah, yep, you'll definitely need to touch base with the vendor then, sorry

[lime yacht]

Question for anyone that can help. I have a dedicated-server that I use with my friends. Its a small computer its a small compact PC that runs the server in my basement. I have some problems with too many drops. I have tried using console commands and it never works. How can I clear unwanted drops quicker.

[proven niche]

The console command "removedrops" should work for you. You need Admin access and the ServerDevcommands mod on your server and your game.

I don't know of any mod that reduces the time that garbage stuff laying around in the world is removed automatically. Maybe someone else does but I don't. There are mods that give you a new "trash can" type item you can use to delete stuff, if that's what you want.

You can find trash can type mods at thunderstore.io/valheim with a search for "trash" there. Choose one that's says it's been updated by it's author for the BogWitch game version.

[bleak zenith]

valheim_server -name "!Example Name" -port 3155 -world "Niflheimr" -password "xxxxxx" -public 1
I put an "!" in the name for easier server list searching. It has worked in the past.
The port is not default, but again, has worked in the past...

I used to have crossplay enabled, but I have since switched my port and at one point, had it working on this new port.

[agile pecan]

Is this a normal/expected error log for a dedicated server on linux?
[Error : Unity Log] DllNotFoundException: party assembly:<unknown assembly> type:<unknown type> member:(null) Stack trace: PartyCSharpSDK.SDK.PartyInitialize (System.String titleId, PartyCSharpSDK.PARTY_HANDLE& handle) (at <12dc5236a94c4276b189810a3488e5eb>:0) PlayFab.Party.PlayFabMultiplayerManager.InitializeImpl () (at <12dc5236a94c4276b189810a3488e5eb>:0) PlayFab.Party.PlayFabMultiplayerManager._Initialize () (at <12dc5236a94c4276b189810a3488e5eb>:0) PlayFab.Party.PlayFabMultiplayerManager.Start () (at <12dc5236a94c4276b189810a3488e5eb>:0)

[final current]

Nah. Usually means you're missing one of libparty.so's dependencies. You'll want libpulse (including the glib mainloop support) and libatomic. Both usually available from your distribution's package management solution.

[final current]

Thanks! Command line looks ok. If the geekstrom tool is truly able to get to your server's query port over the Internet and your NAT UDP port forwarding, the next thing would be to look at the game client's Player.log after you attempt connection via external IP.

In there, if you see a line for your IP like

that ends in something other than zero lobbies, it means it's trying to connect to a Crossplay relay instead of direct connection.

[bleak zenith]

It does have that line but it ends in zero lobbies

[final current]

Cool, means Crossplay registration is probably not in the way. Any other hints on that log? And are you sure your router is forwarding both UDP ports and your LAN IP hasn't changed since your forwarding rules were created? And your external IP hasn't changed?

[fast cedar]

Hey folks, I'm trying to set up an old dedicated server after a long time away (last played Nov 11 2022). If I load the old server .fwl and .db files in singleplayer I see the map we explored with markers, buildings we built, and all of the trophys at the spawn. If I load those same files with the dedicated server (I've tried putting those files into both worlds and worlds_local) it puts me at the spawn with no map progress or trophys. Am I missing something? Did something major change with the save format that prevents me from reviving our old server?

[proven niche]

Are you getting a good save when you visit it in your solo game? Double check the save date and time for it's .db and .fwl file pair to be sure you've got the right ones.

[final current]

Is your -world <worldname> argument matching the <worldname>.fwl/.db file pair name? If you specify a savedir, make sure you're using <savedir>/worlds_local/<worldname>.fwl for the location

[real river]

PlayFab's network is really awful. We changed our self-hosted dedicated server to run from SteamCMD to fully disable crossplay, and we have had virtually no issues with disconnects or any serious latency. Multiple vikings sailing together for hours, no issue.

[gilded nest]

Hey guys.....ever seen where a player joins a dedicated server, but on his end it says "can't connect", but in game world when you hit F2 it shows him in game? Using anti cheat and SSC, but it's not saying banned for wrong mods, it's just saying he can't connect.

[proven niche]

It's likely a comm issue of some sort. Has he ever been able to connect or is this a new player? He can check his player log file (next to his world saves files). And you can check your sever's log file, if it has one. Use the -logfile "...\server.log" startup option to have it produce a log.

[fast cedar]

Thanks for the replies, @proven niche @final current . I found that there were multiple worlds_local directories on my machine. I had been working in ~/.var/app/com.valvesoftware.Steam/.config/unity3d/IronGate/Valheim instead of ~/.config/unity3d/IronGate/Valheim (I swear the latter didn't exist when I first set it up, but maybe that was before I ran the server from a fresh install). That still doesn't explain why when I tried explicitly setting -save_dir to a known path that didn't change anything, but it's working now!

[fast cedar]

Actually not working now lol. I spawned into a bizarro world in which the spawn had all of our trophies, but the spawn and several large boulders are at the bottoms of deep pits, trees are floating down from the air, and the hillside that our buildings were built on disappeared and left them crumbling and the map is undiscovered. Very strange! Again, the same saves are fine in singleplayer but something weird seems to be up with the dedicated server.

Elevations for boulders and runestones are all kinds of messed up 😅

I grabbed another, fresher save from singleplayer and all is well now. Weird!

[final current]

Glad you got it working! Those conditions were reminiscent of a freshly-generated .fwl being paired with an established world's .db, but who knows. As for the savedir argument not working, you don't want the underscore in there if that's how you had it. It's just -savedir

(and I forgot to add it's <savedir>/worlds_local/<worldname>.fwl)

[tall flame]

how do you generate a .db file?

[final current]

Valheim and Valheim Dedicated Server will create a .fwl file and a .db file at the time of world creation, and they'll save changes to them from memory at regular time intervals while the app is open.

If you're looking in your world saves folder, make sure you've enabled the viewing of all file extensions in your file management software.

[tall flame]

im in my world saves folder but im not sure how to enable viewing of all files. I can see the fwl but not the db

I have it set to show hidden items but nothing pops up

i guess according to a reddit thread .db isnt saved until 1st world save?

[final current]

Maybe. First save of the data to disk will be either when you quit or once every 30 minutes.

What file manager are you using?
For Windows Explorer:
https://support.microsoft.com/en-us/windows/file-explorer-in-windows-ef370130-1cca-9dc5-e0df-2f7416fe1cb1#ID0EFBBBDFD (under Show file name extensions)
For Finder in macOS:
https://support.apple.com/guide/mac-help/mchlp2304/mac

[tall flame]

i have a lenovo yoga

[final current]

Cool, if you're using the Windows option, the above link shows how to do it in Windows Explorer. If you're using the Linux option for some Yoga models, you'll have to let us know which desktop environment you're using.

[tall flame]

gonna be real with you here. I have no idea. I tried to search Asterisk .db and nothing pops up but both my worlds pop up when i search Asterisk.fwl

ill try to figure this out tomorrow i appreciate the link but I guess i'm not in the desktop enviroment for that link. I have it set to show hidden things and it still doesnt display .db

[final current]

The file wouldn't be hidden, only its extension

[tall flame]

Okay so my comuter finally generated a db file but it isn't working still. Im here all sunday to try to get this to work.

How do i access console commands on DatHost? I see the console but apparently the server doesn't run the mod i want because "Monstrum" is not in the console commands which is why the rest of the therzie mods don't work.

[proven niche]

You need to be an Admin on the server. And the ServerDevcommands and UpgradeWorld mods need to be installed and running on both the server and your game. Then, the Monstrum console command should work.

[tall flame]

I am the admin. As of right now I'm the only person to ever interact with this server. I have upgradeworld installed but I made a brand new world for this. I can play with my mods on my laptop but they aren't being recognized by the server. I did not have Server_Decommands v1.9.7.0 by jerrKuusela downaloaded so I will put that on the server now as well.

[proven niche]

UpgradeWorld needs to be on the server, too. Not just your game.

[tall flame]

Im just copying the entire plugin folder to DatHost per its instructions. So alll mods that are on my computer are on DatHost.

@proven niche i also want to express my graditude to you as you have attempted to help this mostly helpless stranger for 3 days now. I really appreciate it.

[proven niche]

You're very welcome. Don't feel too helpless. We all had to start at the beginning which is usually interesting and frustrating at the same time. 😄

[tall flame]

I downloaded the mods. I am not seeing a place to enter the console commands on the DatHost side of things.

wait a sec i think i have an idea

Do i type into the dev commands folder now?

[proven niche]

Get into the game on the server world. Then, type the F5 key to open the console. Type your commands in there. You can do "help" there to get a list of all the possible commands. Type the Monstrum command in there.

[tall flame]

I can't get into the game cause it says the list isn't compatable. I've yet to ever log into the game while its on a server

[proven niche]

You'll need to figure out which mod(s) it's complaining about and fix that. Maybe the server couldn't load one or another mods for some reason. Or maybe your game is missing one or two or the mod versions between the server and your game don't match.

[tall flame]

They are all in my plugins on my laptop. I can see them in the plug in files on the server.

[proven niche]

Yep, those 4 mods aren't installed and running on the server. Maybe delete them on the server's plugins folder and re-copy them from your game plugins to the server's plugins.

I've gotta run. Hopefully, @final current will be on soon and can take over. Sorry. 🙏

[tall flame]

alrighty we will see what i can do in the mean time.

[final current]

Hehe, I'm no good with mods generally tho. #mods-issues will be ok for digging deeper. I recommend taking a look at both the Player.log on the client and the server's log for for hints on what might not be compatible or running.

[tall flame]

At this point if there is someone who can make this work I'd paypal them lol it just says i need to add monstrum to the console commands on the server but there is no way to edit the console on DatHost from what I can tell.

[knotty oracle]

You're already paying someone: DatHost.

[tall flame]

Correct and they sent me a list of things to do but it didnt work. I paid dathost for the location but maybe i need a contractor to fix the walls.

[tall flame]

WE GOT IT WORKING!!!!

[bleak zenith]

Yeah, so the log reads like it searches Playfab and doesn't find anything, so it determines this is a Steam Backend server.

Connecting to server with Steam-backend xxx.xxx.xxx.xxx:xxxx
Starting to connect to xxx.xxx.xxx.xxx:xxxx
Am I Host? False
Got status changed msg k_ESteamNetworkingConnectionState_Connecting
New connection
Got status changed msg k_ESteamNetworkingConnectionState_ProblemDetectedLocally
Got problem 5003:Timed out attempting to connect

Not super helpful, just "ProblemDetectedLocally"
Not quite sure what that can mean.
The router and LAN IP (internal IP?) and external IP haven't changed.
The https://geekstrom.de/valheim/check/ still reports success.

[final current]

That site checks the Steam query port, which is gameplay port +1. A good sign, but you will need to make sure both the gameplay port and query port have UDP forwarded over your NAT router and open in your router and local firewall.

Also note that some routers and some ISPs are bad about local routing (connecting to your own WAN address) and in those rare cases, only those external to you would be able to connect that way.

If your router has UDP Flood Protection, consider disabling it.

One other thing is that sometimes the Steam lib's reported issues are for the Steamworks identity/auth stuff and not an issue connecting to your server. When this happens, causes can be if Steam on the client side had been closed before trying to connect to the server or a licensing issue where the same Steam user is trying to use Valheim on another PC or the dedicated server was launched directly with Steam (authed) instead of launched anonymously (which is recommended)

[arctic scaffold]

its probably because of the terrain updates

[gaunt turret]

Anyone have any issues with -crossplay? I’m curious because we’ve seen adding -crossplay prevents the server from launching. I’ll be troubleshooting this Saturday since we do have one or two people that want to get on it and need that to play.

[plain trellis]

All my servers has the -crossplay argument, and have no issues. Rebooted one of the servers yesterday.

[final current]

Let us know what you're seeing, how your clients are trying to connect, and if your server is on Linux, macOS., or Windows.

[agile pecan]

And if you have mods. I think I've heard of mods that are incompatible with crossplay and can cause that issue (but I don't remember which ones)

[gaunt turret]

No Mods, Vanilla, please and thank you. 🙂 Windows Server2019. Most are playing and connecting just fine on PC, had 12 on this last Sunday with no issues. It's just the crossplay that was being a butt. I'll check the logs when I restart it with -crossplay added to the config and see if/where/when it chokes.

Thanks in advance guys!

[final current]

Cool, feel free to paste us log snippets or attach the whole log with private info obfuscated.

A couple things to note:

• With Crossplay, you won't be able to connect to the server via the loopback nor LAN IP addresses. You'd either have to use the Crossplay join/invite code or use the external IP address.
• If not already installed for some other software, you'll need the Microsoft Visual C++ runtime library, available here: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170#latest-microsoft-visual-c-redistributable-version

[gaunt turret]

What's C++ runtime needed for? Just to run the server or is that required for the -crossplay to run?

[final current]

It's a sub-dependency of the Windows version of Microsoft's PlayFab Party library. PlayFab Party powers Crossplay's player identification and networking. Microsoft hasn't disclosed exactly what routines that Party uses from the runtime lib. If it's like their Linux dependencies, they might be using it for OS sound system access, or it could be something more benign like printing to the console. Luckily Valheim still lets you use non-Crossplay features when the Party library fails to load.

I bring it up because there's a chance on Windows Server that you've not encountered other software that would have installed it for you already.

[gaunt turret]

I have not, I built this just a week and a half ago and solely for running Valheim. This is most likely what my issue is. I'll get that installed this weekend and test it out and report back. Thank Justin!

[lunar arch]

Hello, I’m new to setting up a dedicated server and am having issues, i got the server started but when I launch it with the -crossplay I can’t connect to the server, and when I switch to -public 1 the server starts fine for me but is not online for anyone else and there is no join code, I’m trying to use a world me and my buddy started on his Xbox, I have the world file in my locallow folder, I just wondering if I did something wrong during the setup process and any help would be appreciated. Thank you. Also I’ll need crossplay to work since my friend will still be on Xbox. I’m using the dedicated server tool though steam on a windows computer

[proven niche]

Enable -crossplay or your friend won't be able to play on the server. And, IIRC, with crossplay enabled both you and he should use the Join Code to join the server.

Also, the world's file pair needs to be in the dedicated server's save directory in the worlds_local folder.

[lunar arch]

When I have the - crossplay on I get a failed to connect message when launching the server from steam

And I’ll double check the location of the world file

[proven niche]

... both you and he should use the Join Code to join the server.

[lunar arch]

How do I get the join code without being in the server? I just recently started play valheim

[proven niche]

You can have the server create a .log file that will have the Join Code near the end of the log. The server will create a new Join Code every time it starts up.

Use the -logfile server start up option as shown in the instructions manual that came with it when you downloaded the server.

[lunar arch]

I’ll give that a try and will let y’all know if it works thanks

[proven niche]

Ok, good luck with it! Good night.

[plain trellis]

Have you done the port forwarding in you router, when you host the dedicated server?

[agile pecan]

Port forwarding is not needed when using crossplay

[lunar arch]

yes

[lunar arch]

should i remove it if i already done it?

[lunar arch]

it is working!!!!!!!!!!! i just needed to join off the join code not though the server on steam thank yall so much for the help i hope to never do this again lmao jk

[proven niche]

You're very welcome. And you did all the heavy lifting so, Good Job! Have fun with it! 😄

[proven niche]

You can leave the port frowarding in your router the way you have it set for non-crossplay use. It'll come in handy in the future if you ever decide you don't need to use -crossplay.

[mystic wolf]

I am running a private server. All my clients keep getting booted, this shows up in the log. "Got status changed msg k_ESteamNetworkingConnectionState_ClosedByPeer" My pc is connected to the same switch the Server is connected to, so traffic is direct.

My remote clients who use my VPN are also seeing this same issue. You can immediately log back in once the client is disconnected.

[final current]

For your own PC's connection, are you connecting using the LAN IP of the server or the external IP? And when you say same switch, both your gaming client and the server are connected with ethernet and not Wi-fi? Running any Internet security suite software?

[languid pier]

How do I copy db and fill files for the a world I want to use for a dedicated server? I had this world my friends and I used but then I shut off the server/rebuilt my tower and now that server isn't there<.bat file with settings>, but I still have the world files

[proven niche]

You have to keep the .db and .fwl file pair properly together. Make sure you've got the right ones by checking the date/time they were created. They have to both be the same. Then, just copy/paste them.

[languid pier]

Which folder would that go to?
I just reinstalled them back onto my boot drive which it was on originally before my rebuild, that hopefully should help in finding those because they're in my worlds and world_local folders

[proven niche]

If you've got them stored locally they go in the worlds_local folder. If you have them saved in the Steam Cloud, then they go in the worlds folder.

[languid pier]

If all the files are there how do you set up the /bat? I've tried it and it created a different seed instead of using the file

[proven niche]

The world file name goes with the -world startup option in the .bat file.

[languid pier]

Which one should be used, the db or fwl?

[languid pier]

I'm trying each of these and it's oddly not spawning my world with our greeting base

[proven niche]

There doesn't seem to be a world file pair that you can use there.

[languid pier]

I ended up just clearing both of those folders, downloaded my files from Valheim and dragged them in to both folders. I have it running now! But now I'm going to look into seeing if I can get one of my old phones to run the Bat instead of my laptop so it's always running even if my laptop is shut down

[proven niche]

It's hard to tell from your posts what's going on there but I don't think you can run it on an old phone.

[knotty oracle]

Unless you can maybe run Linux on it.

[languid pier]

I mean I'm pretty sure I shouldn't be able to, but I know I can get Linux on it and with Linux that should be able to run the Bat

[proven niche]

I think I remember reading somewhere that some ones phone exploded from doing that because it overheated. So, be very careful.

[knotty oracle]

Just keep it in a bowl of water, it'll be fine.

[proven niche]

I was thinking maybe the bathtub or the kitchen sink, if there weren't any dishes in there.

[languid pier]

Hahaha I have mineral oil 🤔

[final current]

On a phone, you'll likely need an x86_64 emulator like box64 but it may do the job. The only native arm64 Valheim Dedicated Server builds are for macOS currently

[proven niche]

I wonder what kind of a server comm link you'd end up with for all of that?

[gaunt turret]

@final current Yep - It was the C++ redistributable that was missing thanks!

Next question - for PlayFab, as one that doesn't own a console. Does the Join Code change for the server? If so, how does a player find the code (non Public server)

or does it HAVE to be a public server for PlayFab?

[burnt widget]

hey guys

can I join server? be it modded or not

there are 4 of us looking for a dedicated server hehe

[proven niche]

You'll find the servers to join over in the #1024264966712340510 channel on here. Good luck! Have fun with it.

[placid talon]

hey, wondering how hard it is to install bepinex and mods on pt?

[knotty oracle]

Pt?

[placid talon]

Pterodactyl

[knotty oracle]

No idea. You could try asking in #mods-discussion

[placid talon]

Alr thanks

[final current]

The join/invite code does change: every time the server starts up or it detects that communication to Microsoft's relays is severed. A server operator can find the last code issued by looking at the server's logs. Once connected, a PC or Mac player can also find the current code by pressing Esc and looking in the background of that menu. Once a player has connected using the join/invite code, their recents/favorites entries in the game client should continue to lead to the same Crossplay server even after the code changes.

Crossplay can be used in public or private mode just fine. Public just determines whether its advertised in the community tab. With Crossplay the server is always "external" though. And whether a player connects using the join code or external IP address, they are always connecting through one of Microsoft's relays and never messaging the server directly. Because of this extra relay hop for all legs, Crossplay is slower and less reliable.

The Crossplay server won't accept any inbound communication. The server initiates outbound connectivity to the relay for its own leg. Any port-forwarding on the server's NAT router is ignored and typical stateful routing/firewall is used for return datagrams from the relay instead. You will not be able to connect over a loopback IP nor a LAN IP.

[gaunt turret]

Gotcha! Thanks! I did look into the logs and found the code and passed that along. That player was able to connect for a quick test and then came back later on to the second server I started up and they were able to play for a good while. So, for now, it's up and running good! Running 10% cpu and 40% memory. So, I might look into stacking up some memory to handle things down the road.

[bleak zenith]

query port have UDP forwarded over your NAT router and open in your router and local firewall
I've forwarded 2456-2458 ports on my router and on my local firewall.
When you say NAT router, are you specifying some third thing?
When I forward any ports on my router, it automatically sets the internal IP as static for that device as well.

some ISPs are bad about local routing
I'll double check with a friend to make sure it isn't just me 👍
Not seeing the server in the in-game/Steam client's list though

launched anonymously (which is recommended)
Up until today, I've been attempting w/ steamcmd + command line, which included an anonymous login.
Today I tried out using WindowsGSM to do the setup, but I'm still hitting the same issue.

Is there perhaps an extensive list of ports needed, outside of the Valheim-specific few?
I've also tried forwardng/allowing some of these... https://help.steampowered.com/en/faqs/view/2EA8-4D75-DA21-31EB

[proven niche]

What's your current situation?

You're starting the server without -crossplay enabled and with -public 1?

How are you starting the server now? Manually, or with LinuxGSM, or with SteamCMD?

You can connect using the server's internal IP address?

You can't connect using the external address?

Has anyone tried to connect using the server's external address?

Your only problem, so far, is that the server doesn't show up in the Steam server lists at game start?

Neither the server log or your game logs have any clue as to any problem?

[gilded lintel]

Why are steamcmd servers so laggy? Mine is on a good connection and expensive desktop

[proven niche]

Are you using -crossplay? Does it only happen when a certain player joins the server? Is it laggy all the time in all biomes?

[gilded lintel]

And it only uses 40mb memory max. I hosted a server for another game and it goes up to 16.5gb

In task manager

[gilded lintel]

Yeah and I have someone in it who is from xbox

[bleak zenith]

What's your current situation?
I can't find the server in the Steam client server list or in-game server list, though multiple third-party sites/tools seem to see the server. I was able to at one point, but then I changed the -world and -name in the bat file and it has broken since.

You're starting the server without -crossplay enabled and with -public 1?
Correct on both counts. I'm looking to not use crossplay/playfab.

How are you starting the server now? Manually, or with LinuxGSM, or with SteamCMD?
Right now I'm trying to use WindowsGSM because I found a youtube tutorial from a few months ago that uses it, but no luck so far.
Previously I was using SteamCMD (briefly had it working, broke when I changed my world/name)

You can connect using the server's internal IP address?
Correct

You can't connect using the external address?
Correct

Has anyone tried to connect using the server's external address?
Not since I set up WindowsGSM. Will update with results.
I'm using the Steam client server list as the gold standard because that's the last time it worked for others.

Your only problem, so far, is that the server doesn't show up in the Steam server lists at game start?
Server doesn't show up in the in-game search or in Steam client server list.
I'll lyk when someone else tries it. Obvs if it works for them then no issue -- I'll just join using internal IP.

Neither the server log or your game logs have any clue as to any problem?
Nothing super specific, though currently I'm not seeing any server log updates on attempt.

(client side) player log:
Got status changed msg k_ESteamNetworkingConnectionState_Connecting
New connection
Got status changed msg k_ESteamNetworkingConnectionState_ProblemDetectedLocally
Got problem 5003:Timed out attempting to connect

[final current]

Happy to test connect to you externally should it be helpful, whether on GSM or your manual setup. There are no other ports to forward UDP for besides the game port and query port. There is a TCP port used internally for Steamworks stuff that shouldn't be forwarded.

[fluid thistle]

How do you know when the app id changes, to update the server?

[final current]

Steam app ID should never change. There will be a new manifest ID when a new build is available. You can check Steam console or https://steamdb.info/app/896660/depots/ for new one, or simply try to app update from SteamCMD.

[fluid thistle]

oh i thought 896660 was different than when I first installed it

[final current]

You will see 892970 referenced, which is the client. It's also the parent app of the server in Steam's taxonomy so is used by the server for lobby and player auth type stuff.

[potent turret]

Hi All, Just spun up a new server for us, and I always check to logs to see how the generation of items goes. But I am seeing these lines "No instance when setting progress!" during the generation that I do not see in my last world I spun up in June is clean and just indicates what was not placed. Not to concerned just wondering if there is something I should be doing to prevent it.

07/01/2025 09:21:29: Setting up generating loading indicator
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:29: No instance when setting text! Ignoring.
07/01/2025 09:21:29: Generating locations
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:29: No instance when setting progress! Ignoring.
07/01/2025 09:21:31: No instance when setting progress! Ignoring.
07/01/2025 09:21:31: No instance when setting progress! Ignoring.
07/01/2025 09:21:31: No instance when setting progress! Ignoring.
07/01/2025 09:21:45: No instance when setting progress! Ignoring.
07/01/2025 09:22:00: Failed to place all Mistlands_Giant2, placed 94 out of 100
07/01/2025 09:22:00: No instance when setting progress! Ignoring.
07/01/2025 09:22:00: No instance when setting progress! Ignoring.

[proven niche]

I don't think you should ignore it as these errors could indicate a problem with the server saving backup world copies. The following comes up in an AI search for this error:

"The error message "No instance when setting progress! Ignoring." in Valheim can indicate an issue with the server not being able to properly access or utilize the player data required to update or save progress. This could be due to various reasons, including server configuration issues, corrupted files, or conflicts with other software running on the server.

Potential Solutions:

Reinstall the Valheim Dedicated Server: A common solution that has worked for others facing similar issues is to uninstall and reinstall the dedicated server software from Steam. Make sure to manually delete the server folder after uninstalling to ensure a clean reinstallation.

Check for Corrupted Save Files: Corrupted save files can prevent the server from properly processing player progress. If your server is not starting, you can try loading a backup of your save game.

Review your Server Configuration: Check your server's startup script (.bat file) to ensure all settings are correct, including the server name and password.

Check for Conflicting Software: In some cases, third-party network management software, such as "Killer Network Suite," has been found to interfere with server saving and cause issues like this. Try disabling such software if you have it installed.

Verify Game Files: If you are running the server from Steam, you can try verifying the integrity of the game files to ensure they are not corrupted.

Remove Mods: If you are using mods, try removing them to see if they are the cause of the issue. "

[gaunt turret]

Quick question: What's the maximum amount of RAM that an active server should need? Hardware server with 16gig RAM with Server2019 on a VM with 14 gig allocated. Running 2 worlds on it, and hitting about 44% of max allocated memory. For the long term, is this sufficient? Or as the worlds continue to grow and more buildings and terraforming happening would it be better to add more RAM?

[proven niche]

If it were me, I'd give it some time before making any decisions about a RAM upgrade. It's hard to say where you'll be in even just a month or so. You may only have one server at that point or both servers could expand and push your RAM limit due to additional activity and complexity of the worlds as well as possible mod additions in the future.

[final current]

In this case, the message is fine and can be ignored. The missing instance is the progress bar UI, which you simply won't have in a headless run

[proven niche]

That's good info, Justin. Thanks. But why have I not seen those messages in my headless dedicated servers, too?

I'm not doing anything unusual with them. I simply d/l the server tool, edit the .sh startup file, and execute the script. None of the log files have ever included those messages.

[final current]

When was the last time you generated a new world? It's the only time you'd see them. I think they started showing up maybe 5 or so builds ago, at least that's when I noticed them

[proven niche]

Well, that would explain it. The last time one of my servers generated a brand new world was June 1, 2025 19:39 PM. But I don't have the log from that date, unfortunately.

[potent turret]

Thanks, this is the first time I have seen it in the logs. Server seems to be working fine.

[potent turret]

I have logs from a server I spun up 6/10/2025 and it does not have it in the logs. I am on Ubuntu, perhaps something apt updated causing it.

[final current]

We started getting reports of it in here around March 2025. If you didn't see it in the logs, could have been a world that had already be generated or an older server build.

[potent turret]

Ah I found it. I generated the world before I updated the server to 220.5,

06/10/2025 15:25:45: Console: Valheim l-0.219.16 (network version 32)

[final current]

It's probably enough for now as Jaga says. Are you running a Server Core installation or the desktop experience? Core will be like a free RAM upgrade if not already running it and your existing license from Microsoft should cover it. You could get an even bigger RAM upgrade with a server Linux distribution of course.

In the meantime, occasionally checking perfmon once every couple weeks would be good. On Windows, I like to watch swapping by adding "% Usage" of the paging file in addition to % usage of the physical RAM.

[gaunt turret]

Since I fored it up a few weeks ago, I've been keeping a close eye on it. The initial intent was to burn it in then ship it to someone that was going to purchase an online server. I already have hardware so I built this out with the idea of making it as easy as possible for someone that doesn't know servers like I do. So, I put on Proxmox and installed a windows VM that I would be able to help them if needed. Proxmox can backup the entire VM and recovery is very easy. I think I'll still max out the memory, only about $200 for 64 gig.

[crude cove]

Okay, setting up a pure vanilla server, and I just want to check that this is the correct settings right, want it to be somewhat easy for the kids who are going to be playing on it, thank you! They can all go on 1 line right?
-crossplay -preset "normal" -modifier deathPenalty "casual" -modifier resources "most" -modifier raids "less" -modifier portals "casual" -setkey "playerevents"

[final current]

Syntax is good, and yes, 1 line as arguments to the server executable.

There are some shell tricks you can use to make it multiline depending on your interpreter. If you want multiline, you'll have to let us know if you're on Linux, macOS, or Windows, and if you're using cmd, bash, zsh, etc.

One warning I have for you is -preset can be a bit unpredictable. It can end up clearing out the modifiers and keys you set. I believe order matters though, so if you keep it there at the beginning like you have, the later modifiers and keys you set should take hold just fine.

[sage nexus]

@final current @proven niche
This may be of interest. Sorry for the format, or lack thereof, but from time to time I remember to document this kind of thing. This is fairly typical of memory usage. Adding a second server in a separate user-shell seems quite memory efficient; presumably due to shared libs etc. I could possibly run 4-ish servers on this hardware, probably more if less or unmodded. The only serious CPU load happens on server initialization.
At 397.3 MiB for /plugins this is a reasonably heavy build-piece mod selection.
The map size would have been ~100-150MiB at this percentage of discovery.
OS is a standard kubuntu 24.10 desktop install with no GUI initialization.
Hardware is a 4 core i5 with 16GB, no PCI graphics card, and no screen attached.
Typically as backup I just tar --compress the entire user directory, which I guess ends up being ~3GB depending on how much old maps, modpacks, logs and other stuff is in there. No doubt smarter methods like incremental rsync or similar would be much more space-efficient.

[proven niche]

Interesting... So, what kind of RAM load difference do you notice when players join?

And does it seem to make any difference what they're doing ATM in the world? Like 3players taking on Yagluth -vs- when they're just hangin out, etc.?

Thanks for the info, BTW. 🍻

[gaunt turret]

This is the mem utilization running 2 servers - 3 or 4 on server1 and 1-3 on server2. When running only server1 with 12 people on taking on Eikthyr (sp) it was around 30% mem but it was a new world at the time - adding the 2nd server only added about 1-2% cpu, and only about 4% on the memory.

[proven niche]

So, if you were running each server in it's own container, you'd not have that kind of efficiency when adding the 2nd server?

[gilded lintel]

How would you add your ingame character as an admin on a steamcmd server?

Or is there a way to use commands outside of the game?

[final current]

It's based on the player instead of character. You'd add your player ID to the server's <savedir>/adminlist.txt. The player ID is your Steam64ID if not using Crossplay. If you're using Crossplay, it's best to consult either server logs or the F2 dialog when connected to the server.

There is no way to use commands outside of a game client with vanilla Valheim, as far as I know.

[gilded lintel]

I'm on PC and my server is crossplay

[final current]

Whether two shell interpreters or two containers, overhead with typical linux processes is small. If you're using Docker, memory overhead comes from the two daemons: containerd and dockerd, maybe around 125 MiB between the two. That's big by server standards, but the impact is lessened the more containers you're hosting on it.

Podman has better mem overhead for a small number of containers. No big daemons like docker has, but each container has a parent monitoring process that takes less than 2 MiB of mem per container.

A bash shell comes in under 7 MiB if it's interactive (e.g. if using SSH or a desktop's terminal program); can be less than 5 MiB if it's just running a shell script. So in BETLOG's case, that would be two shell interpreters with tiny overhead and if using a desktop terminal GUI, that would be the real overhead.

The all-in-one containers that do backups and whatnot will have overhead from their process-management process, like supervisord. This is what lloeche's (heavyweight) container looks like (RES column is basically memory usage in kibibytes).

A heavy process-management daemon (supervisord running in a Python interpreter), a shell interpreter (bash) for each long-running shell script, including the one that launches the game server itself.

Green lines are just threads of their parent process, in white, so they are just sharing that RES memory with eachother.

So that's kind of worst-case scenario there. 1.6 MiB for podman's conmon, 50 MiB in shell interepreters and all-in-one infrastructure, 2.4 GiB Valheim Dedicated Server. +125 MiB if I were using docker.

Not much gets shared between servers when you host multiple ones unfortunately, whether you're using containers or not.

[proven niche]

That's good info. Thanks. I was thinking it would be a greater difference since each container runs it's own OS, however small. 🍻

[final current]

Nah, that would be the case if you put each server in a VM.

With containers, all your containers use the same Linux or NT kernel/drivers. A program running "in" a container is really running in your main kernel, just with its own network namespace, filesystem view, and some security constraints. This is why the tech has taken off so much. Way less overhead than VMs, and less licensing fees when using commercial OSes.

Because they have their own file system view, they have to include some code for common system things that the OS kernel doesn't provide out of the box. For example, in Linux, DNS is not handled by the kernel, but by a supplementary C library like glibc or MUSL, and your container can have one of those libraries inside of it.

It's confusing because many of the base container images are named after an OS distribution, e.g. the debian, ubuntu, or alpine base images everyone uses. They might include system C library as mentioned, and even a package manager program and the packages the OS distro they're named after comes with, but those are just files. Kernel is still the one you're already running, and all those supplementary files aren't loaded into memory or anything unless the program you're running in the container loads them.

If I had scrolled up in that htop screenshot, you would have seen the parent process of Podman's conmon process tree for lloeche valheim on my system would have been my root OS init process, the same parent process of my non-container processes like sshd, cron, DHCP client, etc.

[proven niche]

Yeah, it was the From: command in some of the container images I saw. I thought it was referring to an actual OS running in the container.

[final current]

You can actually make a "from scratch" container with just a single program in the image. If you don't bring in a system C library, you'd have to statically compile any extra code it needs or write your own (like DNS name resolution code, directory listing code)
https://www.devopsschool.com/blog/creating-a-simple-parent-base-docker-image-using-scratch/

[sage nexus]

players join
Unfortunately I tend ot be playing or solving someones join issues at the time, so even if i have htop open on the other screen it's not that easy to see the sudden changes, linegraphs would be a lot easier. But I have never noticed any diff when players join. My server is dead atm due to eveybodies rl stuff, so i cant really check rn either.
On server start however one core bounces off 100% a few times, and the other 3 wiggle around under 30% till its up.
doing
As above, but I don't think it really makes any difference. I would expect some things like frequent chunkmaster renegotiation, or multiple players moving around on a sailboat to spike a little, but probably not much.
I will try to remember to pay attention to these things when I get the chance to.

[gaunt turret]

I did it the lazy way... got the server running and working, stopped it, literally did a copy/pasta on the directory "valheimserver" and renamed it to "valheimserver2" then changed the parameters in the .bat for launching a different world with different modifiers. They open in two separate dos boxes on the desktop. Created a powershell script to split the output to both the screen and the log file (just ask if you'd like it). I might spin up a third server this week for the try hards and set it all to hard core mode.

[crude cove]

Thank you, so I am running this just on a windows 11 spare pc I have, with 16gbs ram and when I run the bat file from the valheim dedicated server folder (steam tool installed) the cmd pops up for a second then closes?

[limpid pecan]

How easy is it to start up and run a dedicated community server?

[crude cove]

So my server runs without all of the extra syntax, but not with the others

[proven niche]

It depends. Usually somewhere between a "3" and a "7". Rarely more.

[limpid pecan]

Can they get pretty populated?

[proven niche]

Eventually, yes. Pretty much.

[limpid pecan]

I was thinking of trying to find someone to join me in starting one but I was afraid it would just sit empty because nobody cares about dedicated community servers

[proven niche]

Check in the #1024264966712340510 channel to see which way the wind is blowing lately.

[limpid pecan]

Im currently using a steamdeck temporaily till i get a new computer so ill definitely have to find someone to help me, is it too demanding to host big ones?

[proven niche]

Yes, usually.

[final current]

You kept the executable name at the beginning of the line? Either way, you can pop up a Command terminal, cd to the directory and run the .bat file from that window to see what kind of error is happening

[proven niche]

Yeah, I keep coming back to that approach, too. It works. It's easy, quick, and straightforward. Hard to see why I'd want to add any layers of complexity to it.

[gaunt turret]

Right! I have a complex enough job already. I don't need to complicate my life much more than this! 🙂

[gaunt turret]

This is how I troubleshoot batch files. Run them from command line so the window stays open rather than closing on you.

[final current]

If you're talking about running the dedicated server on the Steam Deck, sounds interesting! I definitely don't recommend the in-game server, which would just be exposing your battery to constant thermal sadness. SteamOS comes with OpenSSH's sshd, so wouldn't be terrible for getting the server set up.

I think harder part would be finding a way to keep it plugged in for USB PD while also having an USB-C ethernet adapter going.

[limpid pecan]

If I cant get a server running well on my steamdeck, I can always try to fond someone here willing to be server hoster for me, I have alot of ideas and plans I want to do on a server so if i have to i will, id like to run it myself but it wouldnt hurt to have someone else help

[final current]

This one might do the trick: https://www.belkin.com/p/usb-c-to-ethernet-charge-adapter-100w/P-INC019.html
though I've not tested it myself

[tight sedge]

Hey Guys. I have just bought a dedicated server via a hosting website. We are trying to run it with the nobuildcost world modifier enabled. Unfortunaltely its not working. Might someone be able to help?

[final current]

You'd be best talking with your vendor, especially considering you're paying them. If they're giving you access to the launch script or command line, you can see the PDF manual for the -setkey argument. If you don't have the server downloaded locally, there's a link to the manual in this channel's pins.

If they provide the ability to download and upload world files and restart, you could stop the server, download the world locally, adjust the modifiers/keys with the in-game UI, save, and re-upload the world and start the server back up.

[tight sedge]

They do give me acces to the launch script which i can edit but it won't accept the input I have for the command line. I guess the input i have to write is -setkey nobuildcost

[tight sedge]

Would you be willing to show (or guide me) how to do that?

[final current]

You'd have to consult your vendor's documentation the start/stop/upload/download capabilities if they offer them, as their operation will be vendor-specific.

If you're needing to know where to put the pair of world files (<savedir>/worlds_local/<world name>.fwl and <savedir>/worlds_local/<world name>.db), then let us know if your Valheim game client is running on Linux, macOS, or Windows.

Once it's in the right place locally, Valheim can be started, and from the Start Game dialog, you can select the world and press the World Modifiers button without having to enter the world. I believe the NoBuildCost global key is settable from a checkbox in that dialog. You would then close Valheim and proceed with the upload step.

[crude cove]

This is what I get:

[tight sedge]

Its Windows. I think i get the jist of your message. Tryiny it right now

[final current]

@tight sedge, are you an admin player on the server via adminlist? If so, you could alternatively use setkey console command in the devcommands context, but it will note your character as a "cheater" in stats if you enter the devcommands context.

[final current]

Yes, -setkey nobuildcost would be the correct argument pair for that

[tight sedge]

Yes but wont that enable the building of everything including free armour and weapons upgrades. I just want the buildingcost to be free, and not the rest

[final current]

Nah, you can be precise and just use the setkey command once in the devcommands context. You do not need to enter debugmode/B or Hammer preset or anything like that. It would have the same effect on the world as using the -setkey command line argument or setting the key via the in-game dialog.

Your character will be marked as "cheater" regardless tho.

[tight sedge]

Thats fine its just me and my friends playing on the server

Values need to be entered like this?

[final current]

Also note the NoBuildCost key does disable creature death resource drops, at least it did last I tried it

[final current]

Looks good to me assuming that's the script the vendor runs. You would have to consult them to know if it's ever replaced (e.g. by updating the server or changing config through the vendor's UI)

[tight sedge]

Whoopsie I did not send the right picture

Sorry you had to see that

The setkey was the same tho

[final current]

You might want to post your .bat file contents here. Feel free to obfuscate passwords or world names. You can enclose it with three backticks at the beginning and end for code formatting, e.g.
```bat REM this or that cd … ```

[crude cove]

This is my "start_headless_server.bat" file text - password removed:

[final current]

You've got real typographical double quotation marks around your log file path. You need to replace those with the old-school neutral-position variant from the ASCII set: "…" instead of “…”

[crude cove]

OMG, Thank you, that worked, I will have to remember that if I copy a folder path from windows!!

[mint gorge]

~~Hello! I am trying to help the admin of a server I play on to increase the available slots to over 10.
My questions are:

• Is my admin correct in assuming that the MaxPlayerCount mod is outdated and does not work?
• Does enabling Crossplay indeed hard-cap the slots at 10 where no mod can change this?
• Could a hosting provider hard cap slots to 10, regardless of mods installed?~~

Solved! Crossplay does indeed hard-cap server limit to 10 slots, nomatter what action is taken. (Mods or otherwise)

[knotty oracle]

Probably best asked in #mods-discussion

[mint gorge]

I appreciate your input! I figured this has more to do with networking.
Its my second point that is most relevant to me- and since its a dedicated server..

[proven niche]

I don't think going over the game's designed limit of 10 players is a good idea. Every server I've visited that has over 10 players has had problems as a result. And, if a hosting provider says you have a 10 player limit, that has nothing to do with mods. It's their company rule and you should abide by it.

[mint gorge]

Thank you for your input!
The hosting service in question does allow more slots, it was just an informative question.
My main concern is that I read vague comments about Crossplay not supporting allowing (hard limit even with mods)* over 10 players at all. Do you have some input about that?

I am well aware of instability issues over 10 players ^^ But I appreciate you taking time to respond either way.

[proven niche]

It's not just simply instability that's the problem. You're using crossplay on the server in order to support Xbox players. You'll need to use mods on the server and the player's games in order to provide the resources and extra room in the world that more than 10 players would require for a reasonably enjoyable game.

And as the player count goes up, so does the complexity of administering the server required to provide an enjoyable environment and experience for the players. It's not always easy to administer less than 10 in the first place and the extra players make it that much harder. The admin you're trying to help may or may not already be aware of that.

[mint gorge]

Thanks again for your input!
I am aware of these facts- and they are not relevant to our usecase.

If you have any input about my initial questions, I'd gladly hear them.
If you are still worried about our usecase, feel free to DM me and I can explain it to you.
But it does not change the fact I'd simply just like to know if Crossplay negates the effects of the MaxPlayerCount mod.

I appreciate your concern, but it does not answer my question.

[final current]

Microsoft limit for Crossplay is 128, Valheim's limit (including Crossplay) is indeed 10. It's hard-coded only as much as most constants in the game are. It is theoretically mod-able up to Microsoft's hard ceiling.

MaxPlayerCount mod was actually designed to include Crossplay, though @oak void it's possible the CreateLobby operand for PlayFabNetworking check should be 11 instead of 10 now as they changed it to include the server's relay leg at some point. I see you already updated it for CreateAndJoinNetwork. Feel free to reach out to me (DM, #mods-discussion or your Discord) to discuss.

[oak void]

The code structurally works. There is a limit being placed on Playfab side

[mint gorge]

Thanks for the clarification! That makes a lot of sense

[random wedge]

I'm trying to start my dedicated server and it let's me connect to the server but I've put in the name of one of my world I want to use and it won't upload the worlds data

just wondering if anyone knows how to make it so the world I have already created and played without dedicated server can be used on a dedicated server.

[crude cove]

I am testing my ded crossplay server, and I am not seeing any "Join Code" listed, also what does this mean? I can find the server in the community tab on my gaming pc, but get a failed when trying to join it?

[final current]

You might want to attach your whole log to a post here. Feel free to obfuscate IP addresses or anything you deem private.