networking

[tame carbon]

Tinkering with electronics is easier if you have at least some tools

[vale storm]

It's so dumb that they changed the HDMI port to two micros.

[vale storm]

I know, I have pretty much nothing.

[tame carbon]

@vale storm I used one of those FTDI converters in the past to configure network switches.
But the loose wires and breadboard setup was a bit messy

so I bought a proper console cable

[vale storm]

I don't even have a breadboard.

Even though I literally have a class called "electronics" in university.

F indeed.

[tame carbon]

@vale storm I took a minor in embedded electronics and software development

half a year at school, where all we did all day was tinker with electronics and raspberry pi's

lot of fun :)

[vale storm]

@tame carbon I'm so jealous. It's all theoretical for me.

[tame carbon]

the embedded courses were great. they grouped us up

and our group, was 100% linux

everyone else was using windows laptops

[vale storm]

My former "computer science for engineers" professor refuses to use python because he says it's inferior.

[thick minnow]

That seems nice

[tame carbon]

no language is inferior. every language has its niche use.

except PHP.

[vale storm]

Yes, exactly.

[vale storm]

THANK YOU

[peak cloak]

idk, I kinda dislike python

[tame carbon]

I use python only for 1 thing really.

and that's data analysis.

[vale storm]

Python is great for quick prototyping.

[tame carbon]

because numpy and matplotlib.

ingesting a raw data file, minor parsing and then feeding into a calculation

python is just ez for that

[vale storm]

Anyway, my professors all kinda refuse to teach anything practical.

[peak cloak]

I used python to make an animation with manim, pretty nice for that

[tame carbon]

@vale storm sounds like you made a poor choice in education :/

[vale storm]

Nah, it's not my main focus.

[tame carbon]

@vale storm lol we hijacked our school hall, and had battery packs with arduinos, setting up our own mesh network xD

[peak cloak]

@tame carbon I hate that my teacher refuses to let me use Latex for my resume

[vale storm]

My study course is called "physics and technology for spaceflight applications", the technology part is only half of what I do.

[peak cloak]

google docs is such a pain with formatting

[tame carbon]

we had like a 5-hop broadcast from the other side of the school

[peak cloak]

and ugly

[tame carbon]

with ad-hoc mesh networking

[vale storm]

Oh wow, that sounds fun.

[tame carbon]

@vale storm they used this as a platform, to teach routing and route discovery

and how to build self healing networks

[vale storm]

That's sick.

I should do way more practical stuff.

[peak cloak]

arduinos? what shield did you use

[tame carbon]

https://lastminuteengineers.com/nrf24l01-arduino-wireless-communication/

@peak cloak NRF24L01 ^

[peak cloak]

ah

[tame carbon]

tiny 2.4GHz band wireless receivers

~ 1.5mbit/s per channel

[vale storm]

I don't even own an Arduino.

[thick minnow]

Wow that seems amazing

[peak cloak]

I have like 3 arduinos

more like 5

[vale storm]

Are the cheap knockoff ones any good or are the real ones the only good ones?

[peak cloak]

nah some cheaper ones work

I only have 1 offical one

[tame carbon]

@vale storm I wouldn't buy arduinos at all

[vale storm]

Why not?

I heard they're great.

[tame carbon]

because they are slow as fuck, and overpriced.

I'm a big fan of the blue pill, STM32, a 32 bit arm microcontroller

its cheaper, runs at 72MHz instead of 16.

and has more memory, more progmem, its 32 bit instead of 8.

[peak cloak]

I need to use something with a ATmega32u4

for my project

[tame carbon]

🤢 atmel

[peak cloak]

well the ATmega32u4 is a native usb controller, because I need to use WebUsb

[vale storm]

I honestly don't even know what I would need an Arduino or another microcontroller for.

[peak cloak]

also with arduino you have a lot of libraries and 3rd party support

[tame carbon]

@vale storm those can essentially be programmed with the arduino toolkit

[peak cloak]

using this https://github.com/webusb/arduino

[tame carbon]

@peak cloak :D https://github.com/stm32duino/Arduino_Core_STM32

^ this is gr8

reimplementation of the arduino standard lib, for stm32

@vale storm https://www.youtube.com/watch?v=5mDnKBNl9sY

To give you an idea of speed difference ^

[vale storm]

Okay... 12 times faster is crazy.

[peak cloak]

yeah

[tame carbon]

$2,20 on ali

xD

[peak cloak]

I don't really need speed right now

let me find the screen we are using

[tame carbon]

@peak cloak not just that, you know how slow usb UART is with arduinos lol?

when you do realtime measurements, and dump data to UART

your program slows, a LOT.

main reason that the STM32 is so much faster in this demo ^ has to do with DMA

Direct-memory-access speeds up graphics rendering a lot.

[peak cloak]

https://www.amazon.com/gp/product/B08535GC8J

this is what we are going to use

[tame carbon]

overpriced.

[peak cloak]

tbh it's really cool

[tame carbon]

$32 lol.

[peak cloak]

https://cdn.discordapp.com/attachments/623265423533801483/805306276845322250/LTS_01.png

https://cdn.discordapp.com/attachments/623265423533801483/805520133844893696/video0.mov

it has some sort of it's own chip

because that's hella fast

[tame carbon]

Neat

@peak cloak I got one of these https://www.waveshare.com/wiki/7inch_HDMI_LCD_(B)

[peak cloak]

doesn't even need to be connected to an arduino

[tame carbon]

It sits ontop of a raspberry pi

[vale storm]

That link is dead.

[peak cloak]

not for me

[tame carbon]

https://i.imgur.com/VbVxq1G.png

?

[peak cloak]

@tame carbon we tried to use this one 2.4 SPi ILI9341 Waveshare LCD Display

[tame carbon]

@peak cloak but?

[peak cloak]

the person responsible for programming the screen couldn't figure out to draw images and everything

[vale storm]

Ah, it's the closing parenthesis that discord cuts off of the link.

[tame carbon]

what

@peak cloak lmao wat. you can use SDL to directly draw pixels on screen

[peak cloak]

¯_(ツ)_/¯

what's SDL

He tried to use some library

I prob could have figured it out

[tame carbon]

SDL_Window *window;
SDL_Renderer *renderer;
SDL_CreateWindowAndRenderer(800, 600, 0, &window, &renderer);

//Probably on a loop
  SDL_RenderDrawPoint(renderer, 400, 300); //Renders on middle of screen.
  SDL_RenderPresent(renderer);

https://www.libsdl.org/

`Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.

`

[peak cloak]

that's too resource intensive for arduino though?

[tame carbon]

its a dead simple 'game engine'

@peak cloak its a tiny library to do rendering and such

the GBA emulator on my homebrew PSP uses it too

@peak cloak what, arduino?

[peak cloak]

yeah, the Leonardo

[tame carbon]

lol no

you need a linux kernel for this

[peak cloak]

yeah

that's what I thought

[tame carbon]

I had my waveshare displays on a pi

with touch support lol

fuck me., that was a hell to configure

since i had to manually calibrate my display

[peak cloak]

this one we tried

https://www.waveshare.com/2.4inch-lcd-module.htm

[tame carbon]

SPI

[peak cloak]

yeah

[tame carbon]

@peak cloak https://www.arduino.cc/reference/en/libraries/waveshare-ili9486/

[peak cloak]

I was too busy with web to help him out

lol

so in the end there was a library

[tame carbon]

there's a driver for that SPI display

[peak cloak]

he told me he couldn't find any good libraries for it

whatever, the new screen is really cool too

[vale storm]

I've been wanting to make an entire self-hosted service suite with my RPi.

But the fact that I can't even access the router to enable port forwarding and stuff probably prevents me from doing this in any kind of a reasonable manner.

[tame carbon]

@vale storm set up a reverse tunnel

[vale storm]

I know I could use some VPN solution but it's meh.

[tame carbon]

you can use a cloud VPS, and then set up a VPN between your own router and the VPS

[vale storm]

I've used ZeroTier before to achieve just that but it's hacky.

Also, my upload speed is laughable.

690 Kbps.

Good luck downloading files from your server with those speeds.

Also, download speed is capped at 14 Mbps.

So yeah, it's not ideal.

[thick minnow]

I survive with 8Mb/s and that's before my VPN

[peak cloak]

why use a vpn?

with such slow speeds to make it even slower

[thick minnow]

Well, It's more than enough for me

Also

the VPN started as a small summer project

That I'm using daily now

It ain't too bad

[tame carbon]

he's using vpn so he doesnt get hacked

[thick minnow]

Nah

It's mostly for getting around censorship in my region these days

[peak cloak]

ah, where?

[vale storm]

Those pesky Netflix geoblockers.

That only serve content in specific areas.

[tame carbon]

only sites that geoblock me are american sites

because they cannot comply with GDPR.

[thick minnow]

I live in one of the GCC countries

[tame carbon]

middle east

[vale storm]

Oof.

[thick minnow]

Yea

[vale storm]

*don't want to

They could.

[tame carbon]

true

[vale storm]

We're getting upload filters in the EU now.

It really sucks.

[tame carbon]

it was passed, but hasnt been implemented.

[peak cloak]

upload filters?

what

[tame carbon]

@peak cloak Article 13

[vale storm]

Yes, but in Germany it's almost implemented.

[vale storm]

17

[peak cloak]

bruh

[vale storm]

Basically, content platforms are responsible for the content they serve and have to check at the time of upload if it's copyrighted material. If they don't, they are liable for the damages.

Nobody knows how this is supposed to be implemented.

[tame carbon]

@peak cloak the fear is that, platforms are going to be worried about fines, that they will put preventative measures in place

[peak cloak]

When lawmakers don't understand how the internet works

[tame carbon]

aka: an upload filter.

[peak cloak]

You can't stop someone from sharing files on the internet

[vale storm]

Exactly, and the fear is that this will contribute to false blocking and stuff.

[tame carbon]

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

[vale storm]

It's not even clear if memes are gonna be able to be uploaded anymore.

[thick minnow]

I got the exact same thing

[vale storm]

I haven't.

[tame carbon]

@vale storm memes are apparently fair use.

[vale storm]

Yeah, but filters might still block them.

[tame carbon]

@vale storm https://en.wikipedia.org/wiki/Directive_on_Copyright_in_the_Digital_Single_Market

[vale storm]

Because you can make a meme out of some photo someone took.

[tame carbon]

most of what this directive proposes, I do support to the fullest.

[vale storm]

Copyright law is just messed up though. Tom Scott has a great video about it.

[thick minnow]

Yea, I've seen that

one

[tame carbon]

@vale storm the problem is that the people lobbying for this, are mostly from record labels and movie associations

[vale storm]

Yeah. And newspapers.

[tame carbon]

Yeah but link tax is not gonna happen.

[vale storm]

At least here in Germany.

[vale storm]

Link Tax is stupid anyway, the newspapers literally depend on search engines showing their stuff.

Google could just say 'alright, no more links to news sites'

[tame carbon]

paying for linking is rediculous.

[vale storm]

Yeah.

[tame carbon]

if these news paper organizations want to make money, put up a fucking paywall.

instead of ruining the internet

[vale storm]

I was at a demonstration against Article 13 (when it was Article 13 still and not 17).

"save our free internet" is what that says btw.

[tame carbon]

@vale storm Yeah I'm aware of the protests

[vale storm]

There were so many people.

[tame carbon]

its just, that the CDU/CSU has such a grip on politics in germany

[vale storm]

Yes.

It's horrible.

[tame carbon]

that we can't really do much until the old people have died.

[vale storm]

Hopefully that changes this year with the elections coming up.

[thick minnow]

Can I ask what is "CDU/CSU"?

[vale storm]

Two parties.

[tame carbon]

Actually, its one party.

[vale storm]

The conservatives.

[thick minnow]

Ah okay

[vale storm]

Nope.

[tame carbon]

Christian Conservative party

majority in germany

have been for the last 29 years

[vale storm]

It's one union of two different parties.

[tame carbon]

Yep

CSU is in Bavaria

and CDU is countrywide

[vale storm]

Incorrect, since 2005.

[vale storm]

Except Bavaria.

[tame carbon]

@vale storm they've had the same coalition for decades now?

[vale storm]

No, in 2005 we had CDU / FDP

[tame carbon]

[vale storm]

From 2005 to 2009

And I think from 2009 to 2013, but I'm not sure about that.

But from 1998 to 2005 we had the SPD and the Greens.

[tame carbon]

@vale storm you know who I voted for during EU parliamentary elections?

[vale storm]

Volt?

[tame carbon]

Die Partei

[vale storm]

Nice.

They're kinda breaking apart though.

[tame carbon]

They made two seats

[vale storm]

Yes.

[tame carbon]

I haven't been keeping up since then.

[vale storm]

But one of them left the party recently.

[tame carbon]

oh, really?

Semsrott?

[vale storm]

Yeah.

[tame carbon]

He should have stayed at ZDF

[vale storm]

Because he says Sonneborn posted a racist tweet.

[tame carbon]

Sonneborn is still my hero.

[vale storm]

But the tweet was kinda meh, it feels like Nico just wanted to get out and needed a reason, however small it may be.

[tame carbon]

@vale storm german general elections, I vote for the Left

[vale storm]

Wait. You're German?

[tame carbon]

Ganz sicher, :)

[vale storm]

Wtf

[thick minnow]

Left=Liberal, Right=Conservatives, right?

Or wrong

[vale storm]

Generally, yes.

[tame carbon]

guys

[vale storm]

#off-topic?

[tame carbon]

lets steer away from this, since they don't take kindly to political talk in this server.

[thick minnow]

Yea

[tame carbon]

@vale storm I have dual citizenship

so I'm both dutch and german

I speak both fluently

[vale storm]

Ahh, cool!

[thick minnow]

Nice

[vale storm]

So you live in the Netherlands though, right?

[tame carbon]

Yeah, like 5 minutes from the dutch-german border

[vale storm]

I think we've had this exact convo before.

[tame carbon]

the Rhine is quite close

@vale storm the only reason I interest myself in german politics, has to do with their power in EU

Whatever germany does, goes for all of europe

since CDU/CSU holds such immense power in EU

[vale storm]

Yeah.

[tame carbon]

NO. NO. NO. https://i.imgur.com/ERSGDZj.png

[vale storm]

Ugh, Windows.

Ya hate to see it.

[tame carbon]

Windows doesnt give a fuck to user settings

https://i.imgur.com/wB7vBNX.png

[thick minnow]

Thankfully, I don't have to deal with that anymore

Also

There should be that pasue for 7 days

Spam it

[tame carbon]

Off

should be Off.

[vale storm]

Exactly.

[tame carbon]

I swear

[peak cloak]

select pause until infinte

[tame carbon]

microsoft has found out a way, to store 3 different states in a boolean.

[vale storm]

My android is still on a build from over a year ago. 😂

[vale storm]

TRUE, FALSE, MAYBE-ISH

[peak cloak]

quatum bit

[tame carbon]

@vale storm lol in databases you can use NULL

TRUE, FALSE or NULL

[vale storm]

Nice.

[tame carbon]

I used that to hack 'gender fluidity' support into my minecraft server

[vale storm]

So it's not a quantum bit after all.

[vale storm]

Siiiick.

[tame carbon]

when people were upset of being shoved into boxes of 'male/female'

[vale storm]

That's really cool.

[tame carbon]

so, true is male, false is female, and null is none of the above

[vale storm]

Love it.

[thick minnow]

Nice

[vale storm]

Male, female, other.

Makes total sense.

[tame carbon]

yeah this doesnt work if you are facebook though

[vale storm]

In Germany we now have male, female, and diverse.

[tame carbon]

and have to support 53 different genders

[vale storm]

At that point you may as well just have a text box where people can put whatever they want.

[cedar igloo]

WOW... Cant even be bothered to list all the genders out. smh. It's like you dont even care

[tame carbon]

I'm not against gender fluidity from a social aspect
I'm purely against it for technical reasons xD

[vale storm]

Hahaha, yeah, binary is easier.

[thick minnow]

That is a good idea

[tame carbon]

@vale storm I swear, if you make a site that supports that

I will sign up: "Apache attack helicopter"

[vale storm]

Dude

I literally had that written out

Just now

[tame carbon]

pfp

[thick minnow]

Can I just put this here

[vale storm]

Lol.

Microsoft is a fucking meme at this point.

[jaunty talon]

MITM? :)

[tame carbon]

@jaunty talon it does the same for .jar files

[vale storm]

Java is evil.

[tame carbon]

@vale storm I beg your pardon?

[vale storm]

– Microsoft

[tame carbon]

.NET stinks.

[vale storm]

– everybody

[tame carbon]

it reeks of propietary bullshit

[vale storm]

FOSS all the way.

[thick minnow]

Ayyyyyyy

[tame carbon]

anyways, back to workj https://i.imgur.com/h5P4Cmi.png

I curse .NET, but I use it daily

[vale storm]

Nice.

[thick minnow]

the irony

[jaunty talon]

Java and .NET can be FOSS :P

[tame carbon]

@jaunty talon except .NET core doesnt have: https://i.imgur.com/WMFZoN6.png

[vale storm]

Btw, I want someone to make it so I can use my android phone as a screen for my Raspberry Pi via a cable.

[thick minnow]

Wait ain't this supposed to be the Networking channel?

[tame carbon]

@thick minnow secretly, this is the place where people who have a clue take shelter

[thick minnow]

Haha

[vale storm]

This is as close to the Illuminati as it gets.

This channel.

We are enlightened.

[tame carbon]

safe haven for linux

[peak cloak]

tbh I think that may work

over serial

[lean pebble]

😆

[tame carbon]

@vale storm VNC ?

[vale storm]

Direct USB-C to Micro HDMI would be sick, thank you.

[lean pebble]

Microsoft stinks*

[vale storm]

Preferably without going over network.

[tame carbon]

@vale storm you can set up an IP tunnel over usb

[lean pebble]

Usb c to hdmi?

[peak cloak]

https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=24348

[lean pebble]

Usb a to hdmi

[vale storm]

Wait, are you telling me this might be possible?

[peak cloak]

yes

http://raspi.tv/2012/how-to-run-raspberry-pi-with-no-monitor-or-network

there is also this

USB to TTL cable

[thick minnow]

Well, I got to be going right now, hopefully I'll see ya guys soon

[lean pebble]

See ya

And remember don't download windows updates 😂

They're dangerous

[tame carbon]

@peak cloak he doesnt have a serial interface

[vale storm]

Remember,
sudo pacman -Syu

[tame carbon]

I already suggested this earlier

enabling uart on the kernel

and then using serial

[vale storm]

Yeah.

[peak cloak]

ah

didn't see it

[vale storm]

But I want a display output directly on my smartphone via a simple cable, lol.

[peak cloak]

oh

a display, not just a console

[vale storm]

Yes.

[peak cloak]

well first step would be to get access to the pi via a console right?

I remember crystal saying it may be a sd card issue

[tame carbon]

at this point, we dont even know if the pi boots properly.

[vestal smelt]

Random thought
How hard is it to move data from 1 LAN connected PC to another? (connected to LAN as well)
and how to actually do it=

[peak cloak]

easy

I use scp

[tame carbon]

@vestal smelt there's a myriad of ways you can do this

[lean pebble]

Scp / rsync

[vestal smelt]

Öh
What?

[peak cloak]

scp [e-mail]:file.txt /home/presentmonkey/Desktop

[vale storm]

@tame carbon wait, could a light on the wifi adapter in my Pi be an indicator that it's booted?

[vestal smelt]

on windows 10(pro)
19042.746

[peak cloak]

example to copy file.txt from my pi to my Desktop

[lean pebble]

scp -r for recrusive

[peak cloak]

yep

[peak cloak]

winscp

[tame carbon]

@peak cloak that wont help him

[lean pebble]

Well on windows scp

Powershell have built in scp

[peak cloak]

windows also has this weird buit in thing

[tame carbon]

you still need a server :3

[peak cloak]

it's like nearby sharing or something

[lean pebble]

From 2 windows machines?

[vale storm]

Just use Windows Network Sharing.

[lean pebble]

Smb

[vestal smelt]

Lol
I just need a connection, where I can just download and up stuff to it
Like, not switching PC

[vestal smelt]

How can I do it?

[lean pebble]

Both machines runs windows?

[vestal smelt]

YES
10 pro

[lean pebble]

Share folder between them

[peak cloak]

https://support.microsoft.com/en-us/windows/file-sharing-over-a-network-in-windows-10-b58704b2-f53a-4b82-7bc1-80f9994725bf

[vale storm]

I don't use Windows but I think there's a way to enable something where you can see the folder of one PC aon the other one.

[vale storm]

This.

[lean pebble]

Yea

[tame carbon]

@vestal smelt https://i.imgur.com/ZdM16Rz.png

@vestal smelt you can enable directory sharing in windows directly

@vestal smelt the other computer can then browse this by entering the following in the address bar: \\<ipaddress>\Sharename

[vale storm]

Isn't it forward slashes with network storage locations in windows?

[vestal smelt]

Well
it could be great
If I knew what it is called in finnish

[vale storm]

I always get confused.

[vale storm]

Just change system language to english for a sec.

[tame carbon]

@vestal smelt right click the directory you want to share and press properties

sharing options are in the 2nd tab

https://i.imgur.com/shq0bND.png

[vale storm]

@tame carbon ↑

[tame carbon]

@vale storm there's two lights

[vale storm]

No, not on the ethernet port.

[tame carbon]

there's two LEDs on the board itself

one for system status

and the other for wireless

[vale storm]

On my wifi dongle. (Yes, it's a Pi 4, but I used my edimax to see if that would work)

It's glowing blue.

[vestal smelt]

well
there isn´t sharing menu there

I ll look into it late

[lean pebble]

Maybe try to look on your router dhcp service and see if the pi got IP address

[vale storm]

I don't have access to my router.

[lean pebble]

Oh

[vale storm]

And Fing (nmap app) doesn't pick up an ip address of the Pi.

[lean pebble]

Maybe try arp

[lean pebble]

I like fing

[vale storm]

This is what I meant by dongle.

[vale storm]

Tried it, doesn't show anything.

[lean pebble]

Can you connect it via cable ?

[vale storm]

To what?

[lean pebble]

Are you connected to wifi ?

[vale storm]

Yes.

With my host.

[lean pebble]

I mean rj45 cable to your pi

Fing find everything here

[vale storm]

But to what? The ethernet of the router? That's a different sub-network.

And I only have one ethernet wall outlet.

Which is not even mine.

[lean pebble]

Your pc connected with network cable ?

[vale storm]

No.

[lean pebble]

Ok

[tame carbon]

@lean pebble we're going in circles

I've already gone over this

[vale storm]

Yeah, we had that discussion earlier.

[lean pebble]

I wasn't here lol

[tame carbon]

There isnt much he can do rn

[lean pebble]

Hotspot from your phone to pi

[vale storm]

Tried that too.

[lean pebble]

Via usb

[tame carbon]

His Pi isnt even connecting to wifi.

[vale storm]

Via usb? How would that work?

[peak cloak]

usb console?

right?

[tame carbon]

@lean pebble he can't configure dynamic interfaces at this time.

[lean pebble]

Connect your cable charger and open hotspot on your phone

[tame carbon]

since that requires access

[lean pebble]

Not on Linux

I did it alot

[tame carbon]

Static IP to a PC is the easiest.

with a regular lan cable.

[vale storm]

My working laptop doesn't have an ethernet port if that's what you're saying.

[tame carbon]

@vale storm lol you got some shitty I/O going on over there

no ports

[vale storm]

Yes sir.

[tame carbon]

no serial

no nothing

[vale storm]

Two thunderbolt USB-C and one USB-A.

That's it.

[vale storm]

Oh, and a 3.5 mm combo jack, yay.

[tame carbon]

@lean pebble yeah but the problem is, he can't get the client for this configured on the pi

[vale storm]

@lean pebble but how does the pi know to connect to BT?

[lean pebble]

No bluetooth

Usb

[tame carbon]

@lean pebble even then, the interface is unconfigured.

[lean pebble]

You connect your phone with usb

[tame carbon]

it wont connect.

[lean pebble]

Are you sure ?

[vale storm]

How would I even connect the phone to the Pi? Like, what cable?

[lean pebble]

I did it on my laptops when my lan interface wasn't working and my wifi to

[lean pebble]

Ya

[vale storm]

Yeah, which cable though?

[lean pebble]

The cable you charge your phone with

[tame carbon]

@vale storm android can tether over USB, exposing a network interface to the host

[vale storm]

But my cable is USB-C to USB-A.

[lean pebble]

It's ok

Your pi have usb ports

[tame carbon]

look

all if this is fine and dandy

but at this time

we don't even know if the pi boots.

[lean pebble]

One port to your phone and the other side to pi

Well light are a good indicator

[tame carbon]

@vale storm I would buy an hdmi adapter right now, and leave it for now

[vale storm]

Okay, turned on USB tethering.

[tame carbon]

or a serial cable

[lean pebble]

Ok

[vale storm]

Fing doesn't show the Pi.

[lean pebble]

You should see there the IP of the pi if it's booted correctly

[vale storm]

It takes a week to get here though.

[lean pebble]

No fing

Fing is wifi only

[tame carbon]

@vale storm yeah but then you have an adapter at least

[dusky zenith]

What is the best type of CAT networking cable?

[vale storm]

No idea honestly.

Probably depends on your budget.

[tame carbon]

@dusky zenith 5e or 6.

[lean pebble]

The best is cat8 and home use best is 5e/6/6a

[tame carbon]

I would use cat6a for indoor installation.

[lean pebble]

Or 7

[tame carbon]

Cat8 is a joke.

[dusky zenith]

I mean I've heard of 7 and 8 being a thing but honestly I'm new to networking

[lean pebble]

Expensive joke

[tame carbon]

@dusky zenith for 1G copper, 5e is good enough. 6 has a reinforced core and 6a comes with shielding

[dusky zenith]

ah thank you

[tame carbon]

if you plan on running ethernet next to electrical wires, 6a is preffered

[vale storm]

It doesn't say an IP or anything.

Not there either.

[lean pebble]

Man you have update

[tame carbon]

This isnt going to work ;P

[vale storm]

I'm still on a year-old build.

[tame carbon]

@lean pebble you have to configure DHCP on the pi with this.

[lean pebble]

It should let see the ip of the pi only if it booted correctly

[lean pebble]

Never heard of that I know that it working without any issues

Without any configuration

[tame carbon]

@lean pebble you plugged in a new NIC

you need to run ifup

or ip link set dev <device> up

[vale storm]

@tame carbon I have another idea. What if I use my mouse to use macros that type specific stuff into the console headless-ly? (I don't have a wired keyboard)

[tame carbon]

@vale storm yeah, the idea with that is... serial

[vale storm]

But I could just use my gaming mouse, no?

[tame carbon]

I think you are overcomplicating this issue.

[vale storm]

Probably.

[tame carbon]

You need a machine with an ethernet interface

so you can set up static IP

anything else is overcomplicated.

[vale storm]

Which I tried earlier and then the laptop just went bye bye for no reason.

[lean pebble]

Automatically creating a new temporary nic for it

[tame carbon]

@lean pebble that'd be a first lol

I've never seen a system automatically ifup a new NIC

[lean pebble]

That's how I fixed my pc networking last time

Usb thethering creating automatically temporary nic by usb and connect it

From my experience

The only os I needed use interaction in was windows

With this annoying 'yes no' prompt

[tame carbon]

var data = new List<object[]>();

I wish you can do this in java

[lean pebble]

On rj45 port (ethernet ) / wlan you're right you always need manually but usb you don't need it

[vale storm]

I found my Arch rescue media.

Now the problem is that my keyboard is broken.

How do I type on the laptop?

[lean pebble]

Why did you broke it?

[vale storm]

Some keys just don't work.

And sometimes they do.

[lean pebble]

It's a laptop of desktop?

[vale storm]

Laptop.

I don't have an external keyboard.

I have three laptops though.

[lean pebble]

Just use the build in keyboard

[vale storm]

It doesn't work.

[lean pebble]

Oh

[vale storm]

That's what I'm saying.

[lean pebble]

I missed it

Use another laptop

[vale storm]

Normally I use KDE Connect or an on-screen keyboard to control it.

[lean pebble]

I love kde connect

[vale storm]

The other one doesn't have an ethernet jack.

[vale storm]

Me too, it's amazing.

[lean pebble]

Using it to copy things from pc to my phone

Sometimes I connect the bluetooth too and use the pc for talk on the phone

😆

The problem it's not 100% working

Sometimes it does and sometimes doesn't

[vale storm]

How do I know which partition is which? I don't remember which one I made the home partition and which one is root.

lsblk doesn't really help.

[tame carbon]

@vale storm lol at this point, a live OS is good enough

all you need is IP and ssh.

[thick minnow]

What does KDE connect do?

[vale storm]

Allows to control a device with another one.

[lean pebble]

Not just control

[vale storm]

Okay, sure. But then I need to enable wifi on the live OS.

[tame carbon]

@vale storm again, wired ethernet.

[lean pebble]

Get everything from your phone on your pc

[tame carbon]

I dont use wifi for this sort of debugging

[vale storm]

But I want to connect the pi to the pc via Ethernet...

[thick minnow]

Also if you have a phone you should be able to tether from it roght?

[tame carbon]

I am stepping out of this conversation

we're going in circles

[lean pebble]

Guys I just received my oneplus earbuds they're awesome

[vale storm]

I probably just don't understand what exactly I'm supposed to do.

[lean pebble]

And linus just uploaded a video of gaming on starlink

[vale storm]

Saw that.

[tame carbon]

https://www.youtube.com/watch?v=-nCr6gxFXDU

psybreaks ^ for those who enjoy breakbeat

[vale storm]

The keyboard fucking works. I don't understand.

I'm too tired for this shit, I didn't sleep at all last night.

[thick minnow]

Then take a break

come back after a while

[tame carbon]

amount of times I've solved problems under the shower, is astounding

[vale storm]

This is amazing.

I love it.

[tame carbon]

psychedelic breakbeat :)

80% of what I listen to is psytrance

[thick minnow]

Well

[tame carbon]

https://youtu.be/Y1Tg4vqz3fo?t=2577

try this ^ :D

This is my kinda jam

[vale storm]

Lol. @lean pebble was right.

[thick minnow]

for me 90% of what I listen to is Classical and moreover neo-classical

[vale storm]

I had to do nothing when connecting my phone to my laptop and enabling USB tethering.

[thick minnow]

The only time you need to do anything to tether form a phone is when you use macOS

[vale storm]

I think I figured out why the Arch laptop doesn't boot.

LibreOffice is installed incorrectly.

[tame carbon]

wait wat

[peak cloak]

wat, how does Libreoffice have to do with boot

[vale storm]

So I installed LibreOffice last night and the install said something about mime database can't be updated.

And after that I shut down the computer and it didn't boot back up.

[tame carbon]

https://youtu.be/E8hEJH6remA?t=146
Flexing his guitar skills live on stage

[vale storm]

And now I can't even uninstall LibreOffice because pacman says it's not installed.

[peak cloak]

idk arch, this is why I don't use it

just seems very unstable

[vale storm]

It's not though.

This probably has something to do with the laptop itself, it's really horrible.

On my other laptop it works really really well.

[thick minnow]

wow

just wow

[tame carbon]

party is long overdue

stupid pandemic.

[oblique marlin]

but its the best port

u are right but no antivirus detects payload which communicate through port 80 and 8080 because antivirus thinks its a browser

if i use any other port then antivirus will detect it

[stable spoke]

hey guys/gals, Gotta question. anyone know if its possible to be hacked in a way that your network boots up your computer from sleep, then makes your fan increase rpms at a very alarming rate? possibly by using my computing power maybe? my antivirus software stated someone tried to access my computer over 2,000 times at 3 something am this morning.

[peak cloak]

it's definatly possible

[stable spoke]

Thanks, yeah i just finished the computer scan and it was definitely a virus(2 of them) in my recycle bin... nice place to hide them. was called Suspect!

[peak cloak]

do you have upnp enabled in your router

[stable spoke]

im not sure but id need to check, i also use a voip phone in my home so maybe that is why if i do have my upnp enabled in my router

[lean pebble]

anyone know how to convert sqllite to mysql?

[tame carbon]

@lean pebble what, transport data between databases?

@lean pebble I don't think it can be done like that, if I had to make that happen, I'd write some code to do it

[lean pebble]

now I have bigger problem xD

I installed some management panel and I can't access it with my username and pass

[peak cloak]

kinda confused by what you are asking?

I use proxmox which is KVM + QEMU

I have multiple VM's running

As for networking I have it use macvtap which "spoofs" mac addresses based on the VM so each VM gets it's own IP from the router

[lean pebble]

fucking panel management

[peak cloak]

ikr, just use cli

[lean pebble]

haha

I found one nice

[peak cloak]

try crafty, it's really easy

just a simple installer

[lean pebble]

not pterodac

crap

[peak cloak]

and it's a system service

no

not with sr-iov

[lean pebble]

monkey wanna see this panel?

[peak cloak]

sure

[lean pebble]

pretty nice

took me only 15 minutes to install and configure xD

I played with ssl thats why I had a problem xD

[peak cloak]

what's it named?

pufferpanel?

[lean pebble]

ya

[peak cloak]

ah

tried it before

[lean pebble]

working great

[peak cloak]

I forgot the exact problem I had

waiting rn for HE to reply

I'm convinced it's a problem on their end

[lean pebble]

what is the problem again?

[peak cloak]

destination unreachable

[lean pebble]

oh

[peak cloak]

and I just checked my email

and they reset the tunnel

WORKS

[lean pebble]

I had it too yesterday I fixed it

[peak cloak]

YES

[lean pebble]

miss configured xD

[peak cloak]

it was on their end

[lean pebble]

nice

[peak cloak]

I spent way too much time on that

now I need to setup radvd again

[tame carbon]

at least if you send an email to HE

you get a reply.

[peak cloak]

yeah

suprised

that they even have good support for free users

[lean pebble]

I don't use radvd

[peak cloak]

dhcp6?

[lean pebble]

pfsense uses dhcpv6 / ra

together

[tame carbon]

@peak cloak they are v6 evangelists.

they push this shit hard, the more people use it the better.

@winged ledge virtualization for GPUs

[lean pebble]

amd virtualization option

for gpus like crystal said

[tame carbon]

@winged ledge the idea being, that many operating systems can use the same graphics card

[lean pebble]

I have 2 gpus for for virtualization but you can do it with one to

[tame carbon]

Currently if you want accelerated graphics in a VM, you have to passthrough an entire graphics card

SR-IOV would allow the host to allocate compute time to guests

and allow many systems to share a single card

CPUs already have native support for virtual machines. Keeping a lookup table in memory for mapping virtual memory to physical memory

But this isnt to say for other components.

network cards we've hacked our way around with mac spoofing (mac-v-tap)

but GPUs are complicated, in that the firmware on the card and the driver in the OS are very tightly integrated

@winged ledge LTT showcased this

they had a linux host, with two graphics cards

and a windows guest, who'd get one GPU passed through

you just need enough

RAM is shared

storage, you have to allocate.

@winged ledge You could have a linux host operating system, with that GT210

and then add the 2060 to the system as well

you can pass the 2060 directly to the virtual machine

so the linux host can use the GT210 for display output, and windows can use the 2060

In this configuration

you'd end up 1 computer, 2 monitors and two sets of keyboard/mouse

@winged ledge https://www.youtube.com/watch?v=SsgI1mkx6iw

watch this. and be amazed.

last 5 minutes of the video ,are the most interesting

thats where they showcase exactly what I just explained.

@winged ledge no, you wont be able to switch it

since these are IOMMU groups that are being allocated.

[waxen scroll]

@tame carbon has literally anyone installed linux for gaming as a result of these many linux videos he does? I think not. 🤣

[tame carbon]

@waxen scroll my friend runs this rig. lol

@waxen scroll he managed to pull this off with looking glass and all

using a vega64

though he said that the config for libvirt was a rabbit hole

https://libvirt.org/

@waxen scroll its a bit hacky still. Since looking glass presents itself as a windows kernel driver, which is to be compiled on the system locally.

@winged ledge forget SR-IOV.

you wont be able to use that

Its propietary and drivers are only given to enterprise customers.

no consumer access

@winged ledge and as to the passthrough of a graphics card

you need a specific motherboard

that has the right configuration for IOMMU

https://heiko-sieger.info/iommu-groups-what-you-need-to-consider/

@winged ledge read that article

@winged ledge devices are part of so called 'IOMMU groups'

and you cannot pass a device to a VM, but rather pass an entire IOMMU group

that means, the PCIe slots on your motherboard, have to be in seperate groups, to be able to passthrough one graphics card

same goes for USB controllers

and other peripherals

https://i.imgur.com/AmeR7ve.png

@winged ledge you need to look at what IOMMU groups your motherboard have

make sure the two GPUs are on seperate groups

so you can allocate one to the VM

@winged ledge I really recommend looking up some more articles on how to do this

because GPU passthrough and all the settings, is a bit of a habbit hole

[cedar igloo]

anyone know how to remove openssh key authentication? using an ubuntu cloud image, and would like to remove the requirement for ssh key authentication

[tame carbon]

@cedar igloo though I strongly recommend against disabling it, you can allow both key and password login, by changing the config in /etc/ssh/sshd_config

public exposed SSH servers should never have password login enabled.

[cedar igloo]

its just convenience for now. its not exposed to the public

its in vsphere local cluster

[tame carbon]

@cedar igloo PasswordAuthentication yes

that's the config field you are looking for

@cedar igloo There's another config, for root. PermitRootLogin which you can set to without-password to only allow keyfiles for root

by setting it to yes you can use a password

but root login via ssh is dirty. so I always set mine to no

[cedar igloo]

would i need that for using sudo with a normal user (with the correct privileges) over ssh?

[tame carbon]

no, this is purely ssh

you can still su to root after you are logged in

[cedar igloo]

ok, i dont think i need that enabled then. i dont need to ssh as root

ok, i think i need to configure something else. still getting the following error:

C:\Users\Admin>ssh ubuntu@10.0.10.103
ubuntu@10.0.10.103: Permission denied (publickey).

[tame carbon]

@cedar igloo its using the keyfile

@cedar igloo just out of curiosity, why not just use ssh keys?

its easier

[cedar igloo]

just find password authentication easier when i am automating stuff

[tame carbon]

what

for automation, keys are actually easier.

you can just provide a keyfile as an argument

instead of password.

@cedar igloo did you restart the sshd?

[cedar igloo]

i did /etc/init.d/ssh restart

path might be wrong

i just tried remembering what the path was off the top of my head

[tame carbon]

you shouldnt call init scripts

systemctl restart ssh

[cedar igloo]

i tried systemctl restart openssh and that didnt work. didnt realise it was just ssh

[tame carbon]

@cedar igloo though for real, you might just be off easier using keyfiles

you can use ssh -i /path/to/your/id_rsa

to manually provide an identity file to login with

by default it grabs the one in your home folder

[cedar igloo]

ok, ill give it a go. will need to reinstall the vm as it was a customisation option in vsphere and i dont want to type out a long rsa key manually

[tame carbon]

automating SSH without keys is annoying

because password prompts.

@cedar igloo ah yeah

for installing the key on the remote system you can do two things

either

copy paste the contents of ~/ssh/id_rsa.pub to ~/ssh/authorized_keys on the target system

or

use ssh-copy-id a program, which does this for you

ssh-copy-id user@host

it asks for a password

and then copies your public key to the server

[cedar igloo]

i guess thats a linux command...

[tame carbon]

@cedar igloo you have ssh on your system

ssh-copy-id is part of the openssh suite

[cedar igloo]

oh, enter that on the server

[tame carbon]

no

[cedar igloo]

im confused...

[tame carbon]

@cedar igloo okay, let me take a step back and explain from simplest terms

keyfile auth, uses two files

id_rsa and id_rsa.pub

the first one is your private key (which you should keep private)

[thorny vector]

https://tenor.com/view/tell-me-more-michael-scott-the-office-steve-carell-gif-5407074

[tame carbon]

and the public key is for everyone else

By giving the server the public key

the server can generate a challenge which it encrypts with your public key

you can then verify you are the owner of that key, by decrypting the challenge with your private key

and sending it back to the server.

generating these keys, you do once on your own system (your laptop or whatever)

this is an 'identity'

and you can permit this identity to login, by just adding their public key to your authorized_keys file

This way, you can allow access to a user, without ever sending them a password

and you can also easily revoke access, without having to change the password

by just removing the key from the list

@cedar igloo on your own client machine, you run ssh-copy-id to copy your own public key, to the server

so the next time you login, your computer can use your private key to identify against the server

[cedar igloo]

C:\Users\Admin>ssh-copy-id
'ssh-copy-id' is not recognized as an internal or external command,
operable program or batch file.
sorry, i probably did something wrong

[tame carbon]

wait

really?

@cedar igloo do yourself a big favor and install: https://git-scm.com/downloads

[cedar igloo]

im on windows. just ran PS C:\WINDOWS\system32> Add-WindowsCapability -Online -Name OpenSSH.Client* too

[tame carbon]

git-scm comes with a full suite of bash coreutils

including all the ssh commands

[cedar igloo]

got git bash installed

[tame carbon]

nice

use that

[cedar igloo]

ok, ill give it a go

[peak cloak]

windows doesn't have ssh-copy-id

[thorny vector]

Just use wsl, make your life easier

[tame carbon]

@thorny vector ew

[thorny vector]

Not ew. wsl2 is great.

[tame carbon]

EWWWW

even worse perf.

[cedar igloo]

$ ssh-copy-id ubuntu@10.0.10.103
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/c/Users/Admin/.ssh/id_ed25519.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
ubuntu@10.0.10.103: Permission denied (publickey).

😦

[thorny vector]

wsl2 isn't for high performant operations. Its for easy access to a parallel linux system

Same reason I have powershell on my linux workstation

[tame carbon]

@thorny vector ok resolved it

just took a quick screenshare and fixed the issue

:)

@cedar igloo now you see why ssh login is easier?

@cedar igloo you can then protect your own private key with a passphrase

so when I do ssh somebox

if its the first session in a terminal

I get a popup from my desktop environment

asking for login to my keyfile

[cedar igloo]

yeah. how would i deal with adding access to a new machine?

hypothetically

[tame carbon]

@cedar igloo generate another keyfile on that machine

or, do it like the cool kids and use a hardware ssh key

like a yubi key

plug that into the computer and it does that for you

[cedar igloo]

i need to learn to walk before running

[tame carbon]

https://docs.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent

@cedar igloo setting up ssh keys for git so you can use ssh instead of http, its pretty much the same process

you can either use a single key which you keep private

or generate a key per machine, which is more secure, you shouldn't copy keyfiles.

@cedar igloo SSH allows things like ssh keyforwarding

so you can do ssh: computer -> server -> another server

and the server in the middle, forwards the key handshake from your computer

[cedar igloo]

like apache guacamole?

or can any linux server act as a bridge kind of thing?

[tame carbon]

https://www.cloudsavvyit.com/25/what-is-ssh-agent-forwarding-and-how-do-you-use-it/

@cedar igloo imagine you have one public terminal server on a computer grid

and from there, you log onto servers behind the firewall

but you still use the ssh key that is on your laptop/desktop/workstation

so you can ssh user@terminalserver

and then from there

run ssh user@anotherserver

and it still uses the key on your own machine

SSH agent forwarding is like going another layer deeper. For example, imagine you’re connecting to a remote server, and you want to git pull some code that you’re storing on Github. You want to use SSH authentication for Github, but you don’t want your private keys on that remote server, only on your machine.

To solve this problem, you can open your local SSH agent to the remote server, allowing it to act as you while you’re connected. This doesn’t send your private keys over the internet, not even while they’re encrypted; it just lets a remote server access your local SSH agent and verify your identity.

like

ssh is incredibly useful and powerful. But still very simple

depends on the ssh server if you have agent forwarding enabled

which can only be configured by root

so if the server you connect to doesnt have it on, you cant use it

@cedar igloo I've written software in java that uses ssh in code to interact with a remote server. Setting up logins for that was dead simple

in your config file, you only have to provide a filepath to the private key

and an optional passphrase

@cedar igloo and this is what happens if you click cancel in the agent https://i.imgur.com/X29bu23.png

there's many agents, like for example, lastpass could be used as an ssh agent

I use the gnome keyring for this

it falls back to password login

which it will refuse after I enter, because its not allowed xD

@static knoll werent you looking for a place to play modded mc?

[thorny vector]

@cedar igloo if you want to build a custom Linux image, with users already created, and you can even install packages, use cubic

https://launchpad.net/cubic

[tame carbon]

cubesos?

oh

@thorny vector only other descriptive operating system I know of is NixOS

then there's the usual saltstack and ansible rigs

[thorny vector]

Nope. I made a custom image with it, then set it to pxe boot. Instant access to any netboot machine. Salting and everything else is too much work when I can just do this.

[tame carbon]

@thorny vector I've used buildroot once

https://buildroot.org/

toolchain to build embedded linux systems with

[stable spoke]

hey PresentMonkey, I think I do have Upnp enabled, should I disable that? and will that impede traffic? because i understand most traffic goes through a specific port i think 80 or 8080, and if it comes through somewhere else my anti-virus software wont see it or detect it until its installed.

[peak cloak]

upnp basically allows any computer on your LAN to port forward automatically

I would disable it

[stable spoke]

thank you I appreciate that. Funny how ISP's never really warn you about this sort of thing and the vulnerability it poses.

[hollow marlin]

Its not their responsibility to tell customers that

[peak cloak]

^

@hollow marlin it turns out it was an issue on HE's end

they reset the tunnel and it's fixed

now on my end it's just slow

I will figure this out later

[hollow marlin]

Must not have been a graceful termination and was just stuck. If you do move the tunnel a good practice is to shutdown the tunnel interface and it should tear it down without HE getting involved

[peak cloak]

yeah, I tried deleting the tunnel as well on HE's end, must have not waited enough

[lean pebble]

@peak cloak still same issue ?

[peak cloak]

same issue like I always had, but at least I now have connectivity

[lean pebble]

Oh good progress

What is the issue now ? If you have connectivity

[peak cloak]

slow speeds going through the switch

[desert briar]

Maybe if we get rid of Erina we'll get rid of your networking issues. The guy is like a black cat of internet troubleshooting 😛

[peak cloak]

on router i get 20mbps

on pi I get 118 kbps

[desert briar]

ouch

[lean pebble]

Ok

[desert briar]

Just hanging around, cant come up with anything. So yeah. Afraid I cant help on this one boss

[peak cloak]

this is the iperf test on the pi

[lean pebble]

When you're not using the ipv6 tunnel on the pi all good?

[peak cloak]

it starts then stops

[peak cloak]

wdym, it's the ipv6 that messes it up

maybe I could setup a server on link-local address

that way I can check if it's ipv6

[lean pebble]

Your ipv6 is tunneled right?

[peak cloak]

yes

[lean pebble]

Try disable the ipv6 on your pi

[peak cloak]

ipv4 is fine

[lean pebble]

For test

[hollow marlin]

Where is the other end of the iperf connection?

[lean pebble]

Ok that what I wanted to know

[peak cloak]

iperf.scottlinux.com

[lean pebble]

So clearly is the tunnel configuration

[peak cloak]

it's not the server is slow, because I get 20 mbps on the router on the same server

[hollow marlin]

Yeah I would just try it with link local

[lean pebble]

What is the command you used to test it

I'll test on my vps that works with he ipv6 to

[peak cloak]

iperf3 -c iperf.scottlinux.com -6

you could do it on a server closer to you

your vps is in Germany?

speedtest.wtnet.de

[lean pebble]

Yap

I'll try to both

For me your server is good

52mbit

Lowest it 14mbit

Can be better I have 1gb up/down

Let's test with closer server

The de server is too busy

[peak cloak]

you may have to wait and try again

[lean pebble]

Ya

[peak cloak]

there are 2 more in germany

speed.myloc.de

ping.netnik.de

[lean pebble]

Must better lowest 357mbit highest 541mbit

Myloc refused

You can take them down 😆 they are not working the last two

Did you rebooted the pi?

[primal ice]

https://iperf.fr/iperf-servers.php

[hollow marlin]

Well its maybe worth opening a separate terminal and running top while testing. I can't imagine it being a bottleneck

[peak cloak]

huh, locally over my switch it works perfectly fine

so it's not switch

[lean pebble]

Nope it's not your end I guess

[hollow marlin]

Thought so. Whats the latency from the pi to iperf.scottlinux.com

[peak cloak]

but running the test on my router directly is fine

[lean pebble]

Ok

Reboot the pi