networks

[prisma cobalt]

discord custom embed generator

it supports images and normal text

but i cant show it in action yet

[zealous badge]

I dont even know wht does a discord embed mean, I m kinda new

[prisma cobalt]

go to the #rules, the box thing you see the text in is an embed

usually only bots can send them

[zealous badge]

Aaaaa

I have a disord bot

[prisma cobalt]

try embeds then lol, they can look pretty cool

[zealous badge]

Lemme see if its still online

[prisma cobalt]

ah there we go, finally got it set up @zealous badge

http://www.evorage.com/embed?title=test&description=this is an example

[zealous badge]

http://www.evorage.com/embed?title=noob

[prisma cobalt]

lol

[zealous badge]

How much did the domain cost

Or free

[prisma cobalt]

free for now 👀 dunno if i want to keep it later on

[zealous badge]

How did you gey free

Get

[prisma cobalt]

if you look around quite a few services offer the first year free or something
i used Hostingr which offered it for free

[zealous badge]

Cool thanks

[prisma cobalt]

https://hpanel.hostinger.com/

[zealous badge]

Btw if u dont mind me asking u from south asia

[prisma cobalt]

im not actually

why do you ask?

ah you mean india right?

[zealous badge]

Just prediction test

[zealous badge]

Yea

U from there

?

[prisma cobalt]

no lol

sorry

[zealous badge]

Ahh shit wrong prediction, Indians use lot more emojis

[prisma cobalt]

i know where your coming from, its just from my experience quite a large proportion of people on this server have been from there

[zealous badge]

I m not from India

[prisma cobalt]

nice

not nice

well i said the wrong thing 😂

[zealous badge]

Lol

[prisma cobalt]

ok*

[zealous badge]

It was nice talking to you bye

Later

[prisma cobalt]

cya 👋

[cedar forum]

didn't see if you got an answer but ipaddress (shipped with python) does exactly this

oh wow... that was a way older message than I thought, apologies for the necropost lol

In [1]: import ipaddress

In [2]: net = ipaddress.IPv4Interface("192.168.2.2/28")

In [3]: net.ip
Out[3]: IPv4Address('192.168.2.2')

In [4]: net.network.prefixlen
Out[4]: 28

In [5]: net.netmask
Out[5]: IPv4Address('255.255.255.240')

In [6]: str(net.netmask)
Out[6]: '255.255.255.240'

[kind snow]

I have a questions please, if anyone feels kind to answer. I have an old computer set up with harddrives and m.2, my new computer im on now uses linux. I want to set up the old computer as a file sharing server that can be used with a windows machine and linux machine.

I'm currently reading about samba, my networking game is not good. I was going to build a NAS until I realized all I need is a file sharing

[radiant vortex]

Thank you so much!

[errant bay]

Hey @prisma cobalt!

Uh-oh! It looks like your message got zapped by our spam filter. We currently don't allow .txt attachments, so here are some tips to help you travel safely:

• If you attempted to send a message longer than 2000 characters, try shortening your message to fit within the character limit or use a pasting service (see below)

• If you tried to show someone your code, you can use codeblocks
(run !code-blocks in #bot-commands for more information) or use a pasting service like:

https://paste.pythondiscord.com

[radiant vortex]

You don’t need to build NAS

Are looking into how to set up a Samba file sharing server?

[hoary forum]

Hey! For some reason when I run requests.post in a async function it just doesn't run, no error, no request

No idea what's wrong

what the heck

thing is I know it should work

I tried it in a non async scenario

fixed

[ember ledge]

https://www.kaidos.net/

alr it works

[ember ledge]

I have a scapy question. I noticed the timestamp field of Dot11Beacon returns 403069544007. This date is Sun Oct 10 1982 03:45:44. What am I doing wrong?

[clear bobcat]

Have you seen this? https://stackoverflow.com/a/48754992

[ember ledge]

Hi Thanks for the help. I will reformulate my question to make it a bit more clearer. When I print timestamp fields for scapy packets, I get different results depending on the layer. For example :

bad_timestamp = originalPacket.getlayer("Dot11Beacon").timestamp

good_timestamp is effectively the current timestamp of the packet (11261963624)
bad_timestamp (the field on Dot11Beacon) however equals 405307085189
I'm new to scapy and am simply printing all the possible properties for all types of packets. I'm trying to understand why (if there is infact an explanation) a sub layer would have a timestamp field but have it innacurate?

According to the scapy documentation, Dot11Beacon has 3 properties (timestamp, beacon_interval and cap). However it appears as though the property timestamp is innacurate (from my noob understanding of the documentation)

and is it just me or are the docs incomplete?

I have much more scapy questions as well, so if anyone can redirect me to a more appropriate channel/place to ask feel free to do so

[clear bobcat]

I never used Dot11Beacon so I don't ever know what is it

[clear bobcat]

It's proper channel to ask about scapy things. If you have questions about Ether, IP, TCP, UDP and other low-level protocols maybe I will help you

[rose thorn]

What’s the best way to bridge a socket (TCP) with something else? Specifically a discord bot.

I’ve have thought up of very crude methods such as putting the socket data on a flask app but I don’t think this is the best way.

[clear bobcat]

Describe what you want to do

[livid ore]

I have the problem that my program which requests a website over the ipv6 adress of my server sometimes maybe every tenth request gets the error
gaierror(-9, 'Address family for hostname not supported')) maybe someone has an idea why that could happen. Its strange for me that it works and only sometimes the error comes. Iam running the python script on Debian 10 and I do the server requests with aiohttp

[rose thorn]

Thanks for getting back. I have a socket connection that I would like to send things on from my discord bot. I would like to know the best way to execute this. They ways that I have thought of were unsatisfactory.

[raw pier]

Hi, my question is related to open ports. When we say say that http traffic goes to port 80 and https goes to port 443. What are we actually talking about, I mean does these port numbers belong to server or these ports numbers are of our router?

What I was assuming till today is that 80 and 443 are are port numbers from server side , and on host side it's just some random number above 10k . But when I cheked for open ports on my router today, both 80 and 443 were open. So i'm little confused about it

are these numbers of server side or host side

[faint vector]

i always thought it was both since the ports define where communication goes on both ends

[faint vector]

i might be missing something but would the socket library work for this or?

[rose thorn]

I don't quite get what you mean.

[raw pier]

Yeah but numbers are different on both ends

[hollow rivet]

pip3 install urllib3
Requirement already satisfied: urllib3 in /usr/lib/python3/dist-packages (1.26.5)
WARNING: Error parsing requirements for aiosqlite: [Errno 2] No such file or directory: '/usr/lib/python3/dist-packages/aiosqlite-0.16.1.dist-info/METADATA'

[hollow rivet]

?

[coarse matrix]

can someone recommend me a good tutorial for sockets?

[prisma cobalt]

realpython have a great one https://realpython.com/python-sockets/

[coarse matrix]

thanks! 🙂

[ashen hearth]

https://www.reddit.com/r/techsupport/comments/pa68ve/video_streaming_working_but_connections_with/ - this is not related to python - but it is related to networking, would appreciate any help (maybe @flint crater could help)

[flint crater]

Check ur DNS.

[ember ledge]

I have a somewhat Scapy question. I'm currently listing AP's looking at Beacon frames. For some reason, some SSID's appear to be blank however using the function len() shows it to be 13... Has anyone ever encountered something similar?

Sorry for taking Internet bandwidth, I found my answer. ssid contained \x00\x00\x00\x00\x00\

[upper cypress]

When I run GNS3 as user (in admin group) on Ubuntu 21.04, I get this error messsage:

2021-08-24 12:16:54 INFO root:126 Log level: INFO
2021-08-24 12:16:54 INFO main:259 GNS3 GUI version 2.2.23
2021-08-24 12:16:54 INFO main:260 Copyright (c) 2007-2021 GNS3 Technologies Inc.
2021-08-24 12:16:54 INFO main:261 Application started with /usr/bin/gns3
/usr/share/gns3/gns3-gui/bin/python: symbol lookup error: /home/_________/.local/lib/python3.9/site-packages/PyQt5/Qt5/plugins/imageformats/libqsvg.so: undefined symbol: _ZdlPvm, version Qt_5

When I run it as root, works as expected.

Any ideas?

[humble jungle]

(Even though it's 2 days, I don't see a clear answer):
Server side ports are usually on "well known ports <1024" (or registered ports) or at least must be on ports 'known to the client'. The latter is mostly for testing and sample where you write both the client and server sides.
For Browsers to Web servers the server is almost always on 80 or 443 for SSL/TLS secure communication.
All the browsers presume that the serer will be on 80 for HTTP and 443 for HTTPS unless told otherwise (:8080 at the end of a URL would mean port 8080 which is a common but non-standard number for an 'extra' web service.)

Clients almost always use an "ephemeral" (temporarily assigned) port from the upper ranges. The OS usually choses this on the clients request from anything that is available.

The server needs to be "findable" but the client sends it's return port in the TCP packets so the server can always "just answer" the client at the return address and port it sent.

If the above isn't extremely clear, feel free to ask me to clarify the specific portion.

[thorny echo]

Guys, does Game servers are bought or rent ?

[narrow oak]

what do you mean exactly? Most companies usually rent cloud servers through existing providers, usually from aws, gcp or azure, but it depends

[thorny echo]

Like, can you just buy a game server for one time life ?

[narrow oak]

Most solutions I've looked at has some kind of hourly based payment for cloud servers.

Assuming you're talking about vps' or bare metal

[thorny echo]

Just another question, if you rent a game server, does the company’s that provide this server can access into your server and edit it ??? or your the only one with the ability to do so.

[narrow oak]

once again it would depend on who you're renting from. If it's from some professional providers then they definitely have some terms of service stuff which would explain that. They obviously can, but if they're allowed to or want to is another thing

[thorny echo]

ok

[digital anvil]

Im trying to establish a socket server but when i launch it i gives me a WinError 10061, I have tried searching for solutions but no solution have worked,

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

sock.bind(("0.0.0.0", 5050))
sock.listen(5)

while True:
    clientsocket, addr = sock.accept()```
 anyone got any ideas???

[raw pier]

@humble jungle hi thanks alot for the answer. Yes your answer is clear. The reason for my question was that I found both port 80 and 443 open on my home router. This made me think why are these ports open , like you said our os assigns ephemeral ports for connection. Someone told me that these ports are used for connecting to your router (192.168.0.1 , when we sign in into router to make changes). What do you think the reason is for these two (80and 443 ports )to be listening on my home router ?

[silver pike]

@digital anvil have you tried changing the ip address to 127.0.0.1 ?

[digital anvil]

i have tried changing ports and ips

[digital anvil]

have also read all stack overflows on it and no solution seems to work

[digital anvil]

someone else suggested letting python thorugh the firewall which i did

[silver pike]

you could try: s.bind((socket.gethostname(), 1234))

s.bind((socket.gethostname(), 1234))

[digital anvil]

well same error WinError 10061

[silver pike]

Can you show me your whole code?

Do you get the error when running the server? Or the client?

[ember ledge]

Anyone know what: Basic, 1, The host is set, but the type cannot be determined. ((like means in real terms?))

[surreal sphinx]

Anyone know a way to get headers on an opcode close using the websocket lib?

def on_close(ws, status, msg):
   print( ws.sock.frame_buffer.header )

This is what I attempted but it doesn't actually print anything (not even a blank line, which was kinda odd)

Since the library doesn't pass down any of that info after the teardown

[digital anvil]

running the server, and that was the whole code

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

sock.bind(("0.0.0.0", 5050))
sock.listen(5)

while True:
   clientsocket, addr = sock.accept()```

[silver pike]

Can't see anything wrong with that code @digital anvil... it works perfectly fine when I try to run it... Must be something in your Windows thats not working correctly

[digital anvil]

thats what everyone is saying! i have even enabled python to go unrestricted through my firewall and still the same problem?

[silver pike]

@digital anvil Maybe try and disable the firewall completely and see if that might help?

[digital anvil]

did not seem to help? python anyways should have permission?

[humble jungle]

Yes, your router (almost certainly these days) would have a web interface on at least one of 80/443 and likely both. 80 should just be a convenience and should immediately forward your connection over to 443 (HTTPS).

As you understand, this is so you can connect a browser to your router to view, configure, manage, and update it (you should occasionally update it).

This is almost perfectly fine as long as it's not open on the EXTERNAL addresses (your ISP/Cable etc.) AND as long as your internal network is reasonably secure. You should still have a GOOD password on it (not the default), and use the 443 for actual authentication so an intruder would not see your password and settings.

Also, make sure you remember that darn password as you probably won't use it for months at a time, maybe longer.
Remember if I could visit near your home, gain access to the router, then I could open up incoming ports which could later be reach through the Internet.

[empty rune]

I made a flask webserver how do i make it scale horizontally

Because all the help i can find is resources on cloud services but no way to do it on LAN and port fowarding

[gloomy root]

Thats not what horizontal scaling means

[empty rune]

the way i describe vertical and horzontal scaling is as such:

you have computer A

giving computer A more ram is vertical scaling

but buying computer B to work alongside computer A is horizontal scaling

[bleak stream]

Hmm ok I have a game I want to make it multiplayer how?

Help

[nimble flower]

Using sockets/networking

[amber bronze]

Hi everyone, just wanna ask, what web framework is the easiest easiest to use and setup in Docker?

Just need to add HTTP API to my service

[trail plover]

I've seen most people do it with Flask but I have done with it with Django as well. Depends on you really.

btw has anyone worked with AWS? I've got my django project running in port 80 (http://0.0.0.0:80/) in the RDP client but form the public IPv4 address I'm not able to access it.

[trail plank]

attempting to make a chatroom using the socket and threading module and i constantly get this error and cant find any solutions? anybody know the problem because im having no clue and i just keep experimenting with code to see if it will work and it never does. hope for someone to look into this problem thanks

[violet gate]

this happens if the peer has disconnected

if you try to send to a disconnected socket you get this error

@trail plank

and if you try to recv from a disconnected socket it may sometimes give this error too or it just returns None

[trail plank]

thanks for explaining the error at least

but how is it disconnecting i literally have the server command ran

along with the client

[tropic dagger]

U that means either a server closed or u accidentally closed ur client and tried send messages from it

U might've placed
connection.close()
Inside ur loop

[tropic dagger]

How to make a timeout for the server (socket) to receive a message

conn.recv(1024) #Should only be waiting for 5 seconds till disconnect

[clear bobcat]

Try to call conn.settimeout(5) before conn.recv(1024)

!d socket.socket.settimeout

[errant bay]

socket.socket.settimeout

socket.settimeout(value)```
Set a timeout on blocking socket operations. The *value* argument can be a nonnegative floating point number expressing seconds, or `None`. If a non-zero value is given, subsequent socket operations will raise a [`timeout`](https://docs.python.org/3.10/library/socket.html#socket.timeout "socket.timeout") exception if the timeout period *value* has elapsed before the operation has completed. If zero is given, the socket is put in non-blocking mode. If `None` is given, the socket is put in blocking mode.

For further information, please consult the [notes on socket timeouts](https://docs.python.org/3.10/library/socket.html#socket-timeouts).

Changed in version 3.7: The method no longer toggles [`SOCK_NONBLOCK`](https://docs.python.org/3.10/library/socket.html#socket.SOCK_NONBLOCK "socket.SOCK_NONBLOCK") flag on [`socket.type`](https://docs.python.org/3.10/library/socket.html#socket.socket.type "socket.socket.type").

[tropic dagger]

Right thanks : )

[clear bobcat]

You probably need to reset timeout after .recv by passing None as a value 👍

[tropic dagger]

Does timeout raise an error

[clear bobcat]

If a non-zero value is given, subsequent socket operations will raise a timeout exception [...]

So yes

[tropic dagger]

conn.recv(None)
or
conn.settimeout(None)

Ah I got what it meant as soon as I sent it

[clear bobcat]

try:
  conn.settimeout(5)
  conn.recv(1024)
finally:
  conn.settimeout(None)

I think that going this way is okay

[tropic dagger]

So .settimeout needs to reloaded to work again I suppose? Or is reseting only necessary if you want to remove the timeout?

[clear bobcat]

You can preconfigure your timeout when you are creating conn object

conn = ...
conn.settimeout(5)

...

conn.recv(1024)

[clear bobcat]

Is it working?

[tropic dagger]

Let me create a debug code.

[tropic dagger]

Its working 👍

Thanks

[clear bobcat]

🎉

[tropic dagger]

Should

con.send(str(json.loads(jsonhere)))

Be good enough?
I tried

json.loads(json).encode("utf-8")

But Iam guessing this only works for strings

Wait a minute. I should be using json.dumps

Woops

[clear bobcat]

Hah, yeah

json.dumps to dump data in JSON style

[tropic dagger]

I have completed my TCP based file transfer

It works over the internet, but Iam still doubting how much loss in transmition it might take

[muted niche]

can someone, Help me i have this, exe and i wanted to extend it, I wanted to add a log so for when ever, someone open's it it give's me the time and date or there login and i have no clue how to do that

[tropic dagger]

seems like my worries were nothing after all. On my stress test, 0% loss rate with 324mb sent via local -> internet -> VPN -> Client.
I seem to have underestimated tcp : )

But there were some 20mb extra packets sent(prolly loss retransmition)

[ember ledge]

How do new peers join p2p network without sending a request to a server? Im pretty sure I need to expose some sort of a route so new peers can send request to join the network.

[thorn cypress]

Hey, are there any LibPCAP bindings to Python that function similarly to the C version?

[tropic dagger]

Ur probably looking for a UDP if u mean connectionless

[raw pier]

When you say it perfectly fine if it's not open to external addresses, what does that even mean? My understanding till now was that if a port is open, it is open . How can a port be open for internal network but closed for external. I even tried pinging these ports on my public IP using nmap and the result was filtered.

[tropic dagger]

Based on my understanding, network like router seperates local network from the WAN network. Basically that means your localhost devices isnt able to communicate to the WAN without opening a port. Correct me though : / iam interested

[humble jungle]

@raw pier
No, a router in general has multiple network interfaces, in the case of home routers this will be one on YOUR network with a private IP (192.168.0.1) and one on your ISP/cable network with a public IP.

Otherwise there will be ANOTHER device between your private network and the "router" which is doing that.

Nobody can pass from the outside to the inside (except in ANSWERING a query you initiated) since these routers block that type of access.

You (and your family) can initiated a connection from internal to external and that will work since the response will generally be allowed back in - as long as after the router translates it's destination and it's really destined for the internal IP and port of your computer.

Anyone physically ON your internal network could theoretically connect to your rouer on the internal address, or if they could get authenticated on your wireless it could work even from 'outside' (but nearby) your house.

This is why it is so important to have updated firmware, good passwords, and highest security protocol available on your wireless router/access points.
Almost all such wireless protocols have SOME vulnerability with it getting worse as you go back in time to older firmware or standards.

Access through network connectivity is controlled on an address, port, per interface, and per direction basis. Even on simple cheap routers it's good enough to allow in to out but only responses out to in.

UNLESS you (or your 'gaming' software etc) opens a port for EXTERNAL access. Very dangerous if you don't know what you are doing OR if your internal services are buggy or insecure, but perfectly normal if you understand and carefully control that type of access.

You COULD at least theoretically run a web server (or anything else) internallly and have your router to port and/or address mapping so that conections to port 443 on the OUTSIDE were routed to your internal web server (on the same or different port) but on their internal address.
(There are issues with this such as DNS when using a DHCP assigned address on the external side which is typically but they can be overcome.)

You also could set up an "internal" VPN server to MY "internal" VPN server if we both did this carefully and correctly managed the security issues. At that point we coud have either full access as if we were on a local network TOGETHER, or limited access based on the filters we set.

This latter is way beyond the scope of your question however.

[humble jungle]

@RenterName no, not if I am understanding you correctly. Or at least that wouldn't be normal.

You would normally (by default) be able to INITIATE connections from inside (local) to outside (WAN),but not the reverse; and the outside (WAN) response would be allowed in to the requester.

[tropic dagger]

Yes thats what I was trying to say. Firewalls are like a one way valve and holes are like ports. You wouldn't want them open unless you're prepared for the risk.

But theoretically I opened port 5000 on my home network, but no programs are listening on port 5000, Would I still receive the packet requests from the outside? Why is it a security issue? And how?

[humble jungle]

@tropic dagger You wouldn't receive them BUT your router would forward them in to the address you mapped, so you machine would probably see the connection request but since nothing was listening it would either ignore or reject it.

[clear bobcat]

This is huge topic... Basically create peer-to-peer network with transaction protocol which share transaction across all peers

[humble jungle]

The question is ambiguous: do you mean:
Create another NEW technology LIKE Bitcoin?
Or the more reasonable, USE Bitcoin or one of the competitive technologies to implement… (something??? )

Which and what do you want to implement?

[clear bobcat]

Changing Bitcoin config to create new network is not really hard, we did it (me with my pals) during studies

Also changed proof-of-work algorithm to be more ASIC/FPGA/GPU-resistant lol

[humble jungle]

Are you saying I'm mean & ugly looking? 😜 Look at messages by @clear bobcat Those are things someone much actually help you do.
What do YOU want to accomplish?

[clear bobcat]

Yeah, be kind @ember ledge 😦

[delicate pond]

POV: you try to send 96,000 bytes....

Yeah it froze....

Yup it's dead

XDDD

[prisma cobalt]

why send 96 kilobytes at once lol

wait are you combining C sockets and python sockets lol

gl

[delicate pond]

Are they different much?

[narrow oak]

if the scripts are being ran in the same OS then they are basically the same, as they will be using the same underlying socket api

but that shouldnt really affect anything

[lofty bough]

96 kilobytes isn't that much

[mellow vortex]

how do we put a variable?

how do we put a variable?

how do we put a variable?

[simple cedar]

No need to spam

[lofty bough]

@mellow vortex what do you mean?

[mellow vortex]

variable = input("fuckm") how do we put other variable sum with number?

str((vaariable)

[urban coral]

u mean

num1 = int(input('Num1: '))
num2 = int(input('Num2: '))
sum = num1 + num2

?

n pls don't use offensive words

[ember ledge]

does anyone know ursina networking ?

pleas help

[glad steppe]

Long shot: Any systemd-networkd gurus here - Is there any option I'm not seeing in the man pages that allow me to change the address of the gateway/default route that RAs advertise - It seems to default to your IPv6 Link Local address - either the auto address or a fe80::X address you assign.

I'd like to change it to use fe80::1 that I have keepalived floating across my primary and backup routers ...

[ember ledge]

what is networking?

[bleak stream]

hello guys I have made a game in pygame which is a shooting platformer i have added the player, guns, explosion and stuff and is ready to come out as a multiplayer can someone tell me how do i do it

[real pike]

Does anyone know to to get Ethernet on a ipad

[gloomy root]

Im assuming you cant unless apple have some some janky lighting port stuff to Ethernet cable

[radiant vortex]

I have done it before

You need a lightning to Ethernet adaptor, and a regular ethernet cable (depending on what cables you use)

once you connect them, settings will automatically show an ethernet option

[atomic helm]

Hey my friend needs help with port forwarding

[grizzled haven]

i need to forward port 27015

[prisma cobalt]

theres a guide in channel pins, but also look up if your ISP provides a guide for your specific router

[prisma cobalt]

lol DCHP isnt a thing, i assume you mean DHCP which means dynamic host configuration protocol?

[livid yarrow]

Any suggestions for projects on networking for newbies?

[clear bobcat]

Chat application?

[grizzled haven]

very helpful right?

[prisma cobalt]

just informing them on the correct name, nothing wrong with that. as for their question, i dont know the answer so

well they could try the guide in pins but im not sure what exactly they are trying to do

[storm saffron]

What is the question lol

[eager urchin]

ethereum has some networing components

[livid yarrow]

didn't get you

[livid yarrow]

anything else?

[clear bobcat]

IPIP/SIT tunneling

[radiant vortex]

anyone able to help me with netmiko?

I am using Netmiko to connect to a 2960 S series Cisco switch

This works fine

out1 = connection.send_command("show ip interface brief")
print(out1)

But for this one, The Cisco switch returns "invalid input detected at marker", even though the command is valid

out = connection.send_command("show run") #also tried "show running-config"
print(out) ```

never mind

turns out I just needed to put py connection.enable()

[mystic nymph]

I've done that so many times

[somber lily]

anyone got a video i can watch to learn network scripting

[fierce pivot]

What do u want to learn ?

[last ore]

      - name: Allow connections on multiple ports
    ansible.builtin.iptables:
      chain: INPUT
      protocol: tcp
      destination_ports:
        - "80"
        - "22"
        - "443"
      jump: ACCEPT
      rule_num: 1

    - name: conntrack allow RELATED and ESTABLISHED
      ansible.builtin.iptables:
        chain: INPUT
        ctstate: ESTABLISHED,RELATED
        jump: ACCEPT
        rule_num: 2

    - name: Block all the rest
      ansible.builtin.iptables:
         chain: INPUT
         policy: DROP

anyone knows why those iptables rules block apt update, or loading images from docker.io during container building?

but if I change /etc/resolv.conf from

nameserver 127.0.0.53
options edns0 trust-ad

to

nameserver 127.0.0.53
nameserver 8.8.8.8
nameserver 4.4.4.4
options edns0 trust-ad

it starts working

fuck yeah!

I allowed 53 port as INPUT, it is needed for DNS. And then it started working without nameserver tinkering, udp is required being allowed too

[lapis oasis]

can anyone help pls

[light zealot]

share complete code

[north rock]

network port and IP scanner? same like https://pypi.org/project/python-nmap/

for beginner, no need to implement the full features only specific parts.

[pulsar vigil]

it have to go and it have to back

[agile robin]

hey i have been trying to learn websockets but cant see where im going wrong

import websocket
SOCKET = "wss://stream.binance.com:9443/ws/ethusdt@kline_1m"
def on_open(ws):
    print('websocket open')
def on_close(ws):
    print('websocket close')
def on_message(ws, message):
    print(message)
def on_error(ws, error):
    print(error)
ws = websocket.WebSocketApp(SOCKET, on_message=on_message, on_open=on_open, on_close=on_close, on_error=on_error)
ws.run_forever()

if someone could shed some light it will be nice

[storm saffron]

what goes wrong

[agile robin]

it says its open but wont reply the message

error also work but dont tell me there is any

[storm saffron]

reply to what

you don't send a message

[agile robin]

i should get a stream back thou on message

[ember ledge]

sudo tor

import requests

proxies = {
    "socks5":"127.0.0.1:9050"
}

res = requests.get("https://api.ipify.org", proxies=proxies)
print(res.content)

gives me my public ip address, but when i do curl --proxy socks5://localhost:9050 ifconfig.me/ip it gives me my tor exit node? im confused.

[clear bobcat]

https://stackoverflow.com/a/15661226

Setup http via socks5://...

[lofty bough]

@hardy elk As #voice-verification says, please don't spam to bump your message count, you'll not gain access to voice chat this way.

[ember ledge]

is there a indepth resource on everything about LANs and how an internet connection works?

[clear bobcat]

RFCs?

For example https://datatracker.ietf.org/doc/html/rfc791

[grand kayak]

I highly recommend the book "Computer Networking: A Top-Down Approach", by Kurose and Ross.

Especially if you are a beginner. RFCs can be overwhelming.

[ember ledge]

this applies, thank you 🙂

[earnest blaze]

How can I send multiple things concurrently with (tcp) sockets?

[grand kayak]

You can open multiple connections, if the server supports that.

[earnest blaze]

Oh just like that? It's that simple? No strings attached?

[clear bobcat]

Yeah, RFCs can be overwhelming but I am guessing that the deeper source doesn't exist lol

I will check that book in free time 👍 Thanks for recommendation

.bm #networks message

[grand kayak]

It really depends on what you want to do 😅

[grand kayak]

You're welcome! I strongly recommend it.

[earnest blaze]

I'm making a discord clone and i want to be able to send messages while a large file is sending.

If that clears thing up

[grand kayak]

I see. You could use threads for that.

One thread for each connection.

[earnest blaze]

And how would you handle sending and receiving files?

[grand kayak]

Are you using any web framework, such as flask or fastapi?

[earnest blaze]

Just the plain old socket library

[ember ledge]

why the "switch" in "packet switch" why not simply "packet forwarder"?

switch mean something is flipped or not, kinda confused by the term, that's all

like a lightswitch

[grand kayak]

Most web services such as discord use HTTP for sending and receiving messages

[grand kayak]

The term "switching" goes all the way back to physical telephone lines.

When an operator had to physically attach (or switch) your line until you reach the person you wanted to talk to.

[ember ledge]

ah where you had to manually connect cables to establish a connection?

[grand kayak]

Exactly!

Just like a lightswitch, as you mentioned.

Creating a physical circuit

[clear bobcat]

Really old times

[grand kayak]

You could open a new port on your server just for files, or you can create some standard for messages. For example, a chat message could be:
MSG hello world

While a file transfer could be:
FILE test.txt followed by the bytes of that file.

You can accomplish that in so many ways 😆

It's up to you.

[earnest blaze]

Yes I have already put in a place a similar system what i'm worried about is some underlying obscure socket behavior screwing me over, like bandwith management, priority etc.. which i'm not familar with

[grand kayak]

Which is why I would use a framework such as django, flask, sanic or fastapi

They take care of that stuff for ya

[earnest blaze]

Yeah I believe I should look up some examples, what framework would you recommend?

I've been thinking of getting into them but they seem scary

[ember ledge]

I miss IRC times 😄

[grand kayak]

Personally, my preference is FastAPI

Django is way too complex for a beginner.

Flask is great for beginners, because there's a lot of tutorials for it. But AFAIK it doesn't support asyncio, and it's pretty slow compared to sanic or fastapi.

[earnest blaze]

Ouch no asyncio support? I don't know if i want to commit to learning it then

[grand kayak]

I'm not entirely sure though. You can probably find out by reading flask's documentation.

It seems to support async/await syntax

But:
"Flask’s async support is less performant than async-first frameworks due to the way it is implemented"

See https://flask.palletsprojects.com/en/2.0.x/async-await/

flask is a great framework with lots of resources. It just is pretty old now.

Compared to the others I mentioned, at least.

[earnest blaze]

Alright thank you.

[grand kayak]

You're welcome ;)

[ember ledge]

Ah so RFC is not one, but THE standard about IP?

[grand kayak]

RFC stands for Request For Comments. They are documents that contain technical and organizational notes about the Internet

One of them is the RFC that defines the IP protocol version 4

There are RFCs for TCP, IPv6, HTTP...

Almost every protocol there is.

With the exception of proprietary protocols, such as Microsoft's SMB.

[ember ledge]

So IPv4 will stick around for some while? Because some devices can't upgrade their version?

Otherwise those devices can't communicate with a device using exclusively IPv6

[grand kayak]

Well, nowadays IPv6 is used a lot.

It's usually not about the device not being able to upgrade, but rather that the IPv6 adoption is pretty slow.

Google has an interesting graph about that: https://www.google.com/intl/en/ipv6/statistics.html

[ember ledge]

From where comes the term ethernet? I know ethereal oils for example and "ether" in pokémon.

[grand kayak]

https://www.youtube.com/watch?v=g5MezxMcRmk

[ember ledge]

mmh, do I need to remember twisted pair, coaxial, optical?

it's just the medium right and in future maybe there will be something better?

[grand kayak]

Yep.

Maybe something using quantum mechanics.

We never know.

😆

[ember ledge]

Is bit the better unit to measure anything networkrelated, instead of byte? (or their k/m/g respectives)

[grand kayak]

You will see both very frequently.

In some places, you will see the word octet used instead of byte

[ember ledge]

Mmh, ISPs use bit, like always. I guess because higher numbers sell 😄 (in my country)

[grand kayak]

I would agree 100% with you on that one 😆

But IPv4 adresses, for example, consist of 32 bits. However, we represent them in 4 octets (or 4 bytes) separated by dots.

[ember ledge]

Mmh, so packetswitching is better assuming there are users on the link, that are idling alot of times, since the probability that there are many users requesting data from the internet at the same time is low. Instead of circuitswitching where you can only have up to N connections at all times and the users can't ever have more speed.

in packetswitching as I understand the speed will be divided by the active users

[grand kayak]

Circuit switching is faster and more reliable.

But it would be too costly to have the entire internet circuit switched.

[ember ledge]

it is used for telecommunication like mobile phones right?

[grand kayak]

Packet switching, however, is highly flexible. That's why it's the choice.

[ember ledge]

since they only require a fixed bandwith

(to achieve good quality of speech)

[grand kayak]

Well, it used to be like that. Now, most operators use VoIP, which is packet switched.

[ember ledge]

Ah, ok. So in the future it can be that if alot of users phone right now. Then the quality of each call goes down?

or some get simply "net overloaded"

[grand kayak]

Well, mobility is a complicated subject.

Although it's packet switched, it usually isn't transmitted over the internet.

But for example, Google Meet, MS Teams, Zoom...

Their traffic is packet switched, best effort, goes over the internet...

I bet you have experienced issues with some of them before 😅

[ember ledge]

Anyways I like the book 🙂

I only use Discord at the moment, can't remember my skype time

[grand kayak]

Discord can have issues, too

For the same reasons*

[ember ledge]

so, if all discord users where in an active calling session at the same time, some would have bad quality?

[grand kayak]

Yeah, and it could be for many reasons.

The discord servers could be overloaded.

[ember ledge]

like it was the case with some app Elon Musk said was cool

maybe telegram don't know

because suddenly the servers where full 😄

[grand kayak]

Yeah, that's exactly it.

[ember ledge]

I observed that alot of telecommunication providers are just daughtercompanies of bigger ones

reason?

[grand kayak]

Post offices follow a similar reasoning

The smaller offices serve smaller communities

Where demand is lower

And they just send the package to a bigger office

Here in my country there are hundreds, if not thousands, of smaller providers.

[ember ledge]

Is it possible for a small buisness to be their own ISP?

[grand kayak]

Well, no. If you want access to the Internet, you will need a link to somewhere.

And usually you can only get that link from an ISP.

[ember ledge]

So you the only alternative would be to setup an alternate internet?

(but that is not doable for small buiseness haha)

[grand kayak]

Lmao

The best a small organization can have is an Intranet.

Which is the internal network of the organization.

But it still needs at least one WAN link that serves as gateway to the internet.

[ember ledge]

But a university can act as an ISP? (according to the book)

without having a contract with the "normal" ISPs

[grand kayak]

Well, my university has links from 2 ISPs. One is state-owned, and the other is a private company.

For redundancy and performance, they got an additional WAN link.

[ember ledge]

So Tier-1 ISPs are some of the biggest companies in the world? (ISPs for ISPs)

[grand kayak]

Yeah

Verizon, for example, has a huge infra:
https://www.verizon.com/business/content/dam/business-markets/img/why-verizon/global_networks_map_en_xg.pdf

Including submarine cables

[ember ledge]

Is every searchmachine a contentprovider? What else can be a contentprovider? Is a library a contentprovider in that it provides books?

[grand kayak]

Don't you mean search engine?

Like Google, Yandex, Baidu...

And yeah, kind of. Wikipedia is another good example.

News sites, you name it.

[ember ledge]

Ah yes, sorry it's literally machine in my language

[grand kayak]

Lol it's ok

[ember ledge]

Mmh, what I don't understand is this: the "out" I get, but how the router in a LAN decides which endsystem gets what packets? Have the packets from some website a header which specifies that?

[grand kayak]

That's what routing protocols are used for.

[ember ledge]

ah ok, then I just continue reading

[grand kayak]

It usually works by looking up a routing table

[ember ledge]

so there stands "endystem A requested data from website X, now send packets from website X to A"?

or more general in adresses

[grand kayak]

What do you mean?

Are you asking about the routing protocols?

[ember ledge]

yes, are they covered in the book?

[grand kayak]

I think so.

But the tables look somewhat like this:

They know roughly where each network is

This is of course a very simple example though.

Chapters 4.5 and 4.6 cover the routing algorithms and protocols

But you will probably need some knowledge on IP addressing and subnetting first.

[last ore]

Three are tools/apps that serve like emulator of building a network of computers, routers. They are cool to play with

We used them in uni, to pass network related tasks

[grand kayak]

Yup.

Probably Cisco Packet Tracer 😆

[ember ledge]

So, does the Transport Layer actually transport, as like the name suggests? https://stackoverflow.com/questions/13333794/networking-difference-between-transport-layer-and-networking-layer

IMO it's misnamed 😦

[grand kayak]

Well, there is a chapter on that book explaining the Transport Layer.

I think it's named like that because it is the layer directly below the application layer. So it is responsible for transporting the segments/datagrams with the application's data directly.

[ember ledge]

Yeah I currently have read the layer(s). Still it is very abstract for me. Is the TCP of the source, necessarily the same TCP at the destination?

(if sent over the internet)

Are the transport layer and networking layer just additional envelopes for the packet created in the application layer?

with 2 different "zip codes" on it, so the router knows where to send it

[grand kayak]

No. Usually, the client's transport layer port number is different than the server's.

The HTTP default port is 80. A web server receives connection from multiple hosts simultaneously, correct?

The web server knows where each client is based on the client's port.

So if client A accesses http://amazon.com on port 80 at the same time as client B, they will use different TCP client ports for that (even though they are both connecting to the server's port 80)

[grand kayak]

This "enveloping" is called encapsulation. And very frequently yes, the transport and networking layers are used to encapsulate the data coming from the app layer. However, the ping command for example sends ICMP packets, which are encapsulated inside the IP packets.

(image source: https://www.networxsecurity.de/glossary-d1/i-d1/icmp-d1/)

[grand kayak]

@ember ledge I also highly recommend Ben Eater's videos about networking:
https://youtube.com/playlist?list=PLowKtXNTBypH19whXTVoG3oKSuOcw_XeW

[ember ledge]

Hey thanks 🙂

[grand kayak]

You're welcome

:)

[ember ledge]

So the ping command bypasses the TCP encapsuling and goes straight to IP?

[grand kayak]

It's not that it "bypasses" TCP. It just does not use it.

ping sends ICMP messages, which are directly encapsulated by the IP packets.

The networking stack is very flexible, as you don't need to use all layers every time.

The ARP protocol, for example, is encapsulated over Ethernet frames.

[clear bobcat]

There are few other protocols built on top of the IP one

There are few others built on top of the TCP / UDP (like DNS)

You can also pack an IP packet inside another IP packet to make IPIP tunnel

[quiet pine]

whats the difference between socket.AF_UNIX and socket.AF_INET

[gloomy root]

AF_UNIX defines a UNIX socket. This is a specialised internal socket that usually is backed on the file system rather than the general network, this generally means they are much faster in general but come with the limitation that they can only communicate between processes on the same machine. As part of what makes it fast is the optimisations / assumptions the OS can make by limiting it to just the local machine.

AF_INET is the general address family that general sockets use (Ipv4)

[quiet pine]

If the goal is to send information (such as text) from one computer to another that aren't connected to the same network, how is that accomplished.

[gloomy root]

Realistically speaking you are connected to a network

/ you have to be

the difference is generally you're going from LAN to WAN

which is done via INET sockets

[ember ledge]

Why is WiFi usually limited to tens of meters?

Would it change with a better/bigger hardware?

[gloomy root]

Well generally its because of signal interferance

the further away you are the weaker the signal, the more interference

generally this is more of an issue with 5g rather than 2.4g for the distance part because they're simply higher frequency waves that travel a shorter distance becase they're more likely to collide and interfere with other atoms / particles

2.4g tends to be more subject to interference because it travels further, this is generally much more prominent in cities and towns where there are lots of houses with their own routers in close proximity.

Ultimately this is a physics problem rather than a hardware thing.

we have the tech to do wifi over kilometres of distance, but the longer the distance the lesser the speed because generally you need lower frequency waves to travel further.

Its the same idea for why we use Low feq EM waves over X-Rays for broadcasting data wireless to radios.

[indigo panther]

There is WiFi that can got much further now. But dependant on path attenuation, and power at the Base.

Inverse Cube Power law if you Wana read up.

[ember ledge]

Hi is this correct?

Suppose users share a 2 Mbps link. Also suppose each user transmits continu-
ously at 1 Mbps when transmitting, but each user transmits only 20 percent of
the time. (See the discussion of statistical multiplexing in Section 1.3.)

a. When circuit switching is used, how many users can be supported?

b. For the remainder of this problem, suppose packet switching is used. Why
will there be essentially no queuing delay before the link if two or fewer
users transmit at the same time? Why will there be a queuing delay if
three users transmit at the sa

a) Only 2, because circuit-switching makes guarantees.

b) La/R(average packetsize/transmitrate) will be exactly 1 with 2 users and above 1 with 3 or more users.
A queuing delay is only when La/R is above 1. This is because the link can only handle 2 mb/s.me time?

[onyx mica]

I'm building a server for IoT devices that communicate via a TCP connection and was wondering which python library is the best for it. I've used twistd before but that was years ago and I'm just wondering whats the go to async tcp server these days

[gloomy root]

as in HTTP stuff

or just TCP in general

asyncio is pretty much the inbuilt go to for async networking

[onyx mica]

TCP, the IoT devices can only communicate on TCP. So I cant use HTTP requests 😩

[grand kayak]

How come? HTTP is simply a protocol, and it uses TCP.

The server can be a normal HTTP server, and the clients can just build the packets from scratch using the HTTP protocol.

[onyx mica]

It's an IoT device that uses very low level code to save battery

[grand kayak]

But HTTP messages are just TCP data with a standardized format

Anyways, if you want to use sockets from scratch, there is always the websockets package.

[onyx mica]

I didn't write the firmware for it. But its not uncommon for IoT stuff to use pure TCP or MQTT. They squeeze the hell out of these devices to get every once of battery life out of them

[grand kayak]

I just meant that you can send HTTP messages to a HTTP web server using only a TCP socket client.

Like netcat, for example.

But that also applies to low level code

But it really depends on what you want to use the TCP connection for

Btw, FastAPI supports websocket endpoints

If that's any help.

https://fastapi.tiangolo.com/advanced/websockets/

[ember ledge]

I just learned Germany is a developing land in terms of internet access/infastructure. Sad, as I live in it 😦

And Telekom has the right to throttle Fiber to Building when it conflicts with their wires.

[hollow rivet]

how we built a python program to know the length of the password

[ember ledge]

unless the hashing algorithm used to "store" the password is horrible there is no way, other than guessing the password. At this point the length is rather uninteresting?

[ember ledge]

unless you mean py someString='some password' print(len(someString))

[worn elm]

So I think I m planning to connect computers together though wireless network and let them train nn model together, do u think there is anyway to do so?

[empty jungle]

The realpython tutorial is a bit overwhelming, is there an easier socket tutorial and possibly explaining what everything means?

[prisma cobalt]

lookie here
https://gist.github.com/Evorage0/74f00d12231d08722b47b8b5531e5dac

[empty jungle]

Ty

I might just not do sockets though tbh

but I don't know what to learn

[prisma cobalt]

sockets are fun, communicating with another computer can lead to so much more

although tbh my first intercomputer comunication was in discord and using a discord bot in a private server to recivie and parse the text commands i was sending

[empty jungle]

They are so confusing though, is there a place to learn the logic behind them first

the RP tutorial made me feel overwhelmed tbh

[prisma cobalt]

imagine sockets as a tunnel of which you can send and receive data

any data works, as long as its in binary form

[empty jungle]

hmm

[wraith condor]

Hello,
Can anyone tell me how to hack a phone by sending an sms???

[cedar forum]

Nope, not here I'm afraid.

[radiant vortex]

Anyone able to help me with Netmiko's textFSM?

I'm getting the following error but I don't know what it means

TextFSMError: State Error raised. Rule Line: 64. Input Line: ^

The command I am attempting to send and textfms works fine in my test document, but in my main code it gives that error

this is the command I am getting the error with

out = connection.send_command("show ip int vlan " + (VlanID), use_textfsm=True)

[limpid wagon]

Does this work? out = connection.send_command("show ip int vlan " + VlanID, use_textfsm=True)

[radiant vortex]

Sorry I forgot to say

I figured out the issue

That command on a Cisco switch, it only works for interfaces. So the vlan in question would have to have an IP address

Otherwise the output is “invalid command detected by marker^” and TextFSM can’t do its thing

So I used a try and except

[queen hinge]

hi can i found this example(https://gist.github.com/Evorage0/74f00d12231d08722b47b8b5531e5dac) here pinned and it has some problem it should be connection.recv(1024).decode() not s.recv(1024).decode()

[polar moth]

Why it happens and is it possible to prevent it?

please,ping when you answer. Either,I will not able to see it

Thanks in advance

[vernal jackal]

Hey guys I get an error from cloudflare when i try to make a call

Error 1020 anyone knows how to fix it

Or how to prevent it from popping?

[ember ledge]

check the firewall rules

if you have access to the cloudflare firewall

[prisma cobalt]

if socket.recv() is a blocking call, then how do examples work like this

data = ""
while True:
    temp = socket.recv(1024).decode()
    if temp = "": break
    data += temp

since the recv blocks until it gets data, it can never be "", it just blocks?

there must be a special rule or something

[ember ledge]

recv() can return ""

and when it does it means the opposite peer sent all the data it had for you

[vernal jackal]

what if i dont have access

[trim moth]

yeah, since .recv() is a blocking call, it will wait for data to arrive from the opposite side, and the program will not progress until so happens

once all the data from the sender has been received, the .recv() just returns whatever data it just got, it could be anything, since the sender could send anything

the way I've been handling the closing procedure of breaking loops and closing sockets is looking for certain keywords like if received data from .recv() is "close" break the loop and close all the sockets, in the same way, someone could have the string "" (or probably None type too) as their keyword, .recv() won't return anything on its own, just what it received

[split goblet]

so im making a chat thing using asyncio streams, however the problem is that the input() blocks the program from receiving msgs from the server, how do I fix tht?
1 solution I can think of is to mke 2 client programs, 1 for just sending messages, and 1 for displaying them

[grand kayak]

You can use threads

[ember ledge]

Is it possible that the content of some internetsite is displayed slightly (like one char) different than it is meant to be?

due to an error transmitting the data to my browser

[errant bay]

Hey @mortal tide!

It looks like you tried to attach a Python file - please use a code-pasting service such as https://paste.pythondiscord.com

[mortal tide]

import socket
import threading
from queue import Queue
import os
import sys
import time
os.system("cls")
target = input("Enter The Host To Find Open-Ports -> ")
queue = Queue()
open_ports = []

def portscan(port):
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.connect((target, port))
        return True
    except:
        return False


def fill_queue(port_list):
    for port in port_list:
        queue.put(port)


def worker():
    while not queue.empty():
        port = queue.get()
        if portscan(port):
            print("[{}] Open Port For -> [{}]".format(target, port))
            open_ports.append(port)

port_list = range(1, 444)
fill_queue(port_list)

thread_list = []

for t in range(1500):
    thread = threading.Thread(target=worker)
    thread_list.append(thread)

for thread in thread_list:
    thread.start()

for thread in thread_list:
    thread.join()

print("\nopen ports are: ", open_ports)
print("port scanning done")
time.sleep(300)

**Fast Port Scanner ⬆️ **

[ember ledge]

what is the question?

[mortal tide]

its not

just for people that wants a script of a portscanner

[ember ledge]

you could get it on github, some subchannel of discord I don't think is reaching alot of people 🙂

[grand kayak]

That would be very rare.

[ember ledge]

because of crc?

[grand kayak]

There are many error verifications

[grand kayak]

yup

[ember ledge]

so practically it is rather impossible?

[grand kayak]

And TCP has error control too

However UDP doesn't

That's why audio and video can cut, fail, skip frames and lose quality

And that's treated as web content too

[grand kayak]

In protocols that use TCP, yeah

But if you got some time, watch this video: https://www.youtube.com/watch?v=AaZ_RSt0KP8

[ember ledge]

are they layermodels of OSI or the book you recommended worth remembering?

[grand kayak]

Well, OSI isn't really used in the real world.

If you are taking a test such as CCNA, you have to remember them, yes.

I have them remembered bc they are mentioned quite a lot

And I took many tests too

[ember ledge]

i get only 4 of them right: physical, application, network, transport (tho the order...)

but I know there are 7 in OSI and 5 in the book

[grand kayak]

With some more practice you will remember it :)

[grand kayak]

The book shows both OSI and TCP/IP

And a comparison of both

[ember ledge]

the encapsulating of packets is done in multiple layers right?

namely transport and network

and dependant on the app, in the application layer too

[grand kayak]

The application data in encapsulated in a transport layer segment/datagram, which is then encapsulated inside an IP packet.

The IP packet is also encapsulated, in the Layer 2 Frame.

[ember ledge]

are there real applications that don't make an app-header?

[grand kayak]

That really depends on the protocol

You can create a websocket that just sends a stream of data

FTP, for example, uses 2 ports. One for management and the other for transmitting data.

If I'm not mistaken, the port that transmits data doesn't use any headers

Not sure though, it's been a long time since I've studied FTP

[ember ledge]

@grand kayak I like veritasium, but this video escaped from my view. Interesting!

[grand kayak]

That is one damn good video :)

[ember ledge]

So to avoid cosmic radiation, you have to send data redundantly?

[grand kayak]

Well, I don't know if it's worth the trouble 😆

With the exception of mission critical scenarios

Or if you're on space

[ember ledge]

well with voting I see it mission critical IMO

[grand kayak]

I don't know much more about those single effect cosmic ray stuff, but there could be other ways of preventing it

I really don't know tbh 😅

[ember ledge]

On a large scale, interplanetary Internets are impossible(fast) because of the speed of light?

like connecting Mars to Earth

intersolar(star to star) systems would have to create a new technolgy like wormholes, but then I think transmissionrate would suffer alot

[grand kayak]

Well...

There are quantum networks.

https://www.newscientist.com/article/2281591-quantum-data-link-established-between-two-distant-chinese-cities/

If you want to dive into that, there's NetSquid for Python

https://www.nature.com/articles/s42005-021-00647-8

That's the only one I'm familiarized with

[prisma cobalt]

Well you could implement error checking/correction. Even a simple algorithm should do the trick based on the low chance of a cosmic bit flip

A few parity bits should do the trick and not take up much space as well

[rustic knoll]

Has anyone worked with Firewalls with python, primarly the netmiko library?

[split goblet]

I am using asyncio streams which is concurrent

[split goblet]

I think tht video is kinda exaggerated on how much error has/can occurred/occur due to tht, like the plane one, where he says cosmic radiation cud have been the cuz, but according to the researchers, it was as improbable as the other hypothesis

magnets would be a much more probable reason for a computer to crash thn cosmic rays

[hasty charm]

best web browswr?

For me? It's the Brave Browser by Brendan Eich, founder of Firefox and creator of JavaScript

It's true Brave is really the new Firefox

Also Brave will launch its privacy-centric search engine soon:

https://search.brave.com/

What are you waiting for?

[ember ledge]

how are you sending a request to the website protected with that cloudflare?

[vernal jackal]

I use graphQL, I get error 1020, but the weird thing is that if I make a call from postman, I get a response

[ember ledge]

are you using graphql python library

but the weird thing is that if I make a call from postman, I get a response - most likely the request is just different when its made within postman

even if you access the same path on the website

the headers may differ

how are you sending the graphql request

[ember ledge]

How is your stance on allowing other chracters than acii as "addresses"? Like emoticons or, more sinister: an "e" characters that looks by all means the same, but isn't

[cedar forum]

addresses?

ohhh you mean like domains

[gloomy root]

god no

[cedar forum]

well, most browsers actually filter out domains like that which use similar-but-not-the-same-characters to prevent phishing

as for other than ASCII, it's great

[gloomy root]

Im pretty sure you just straight up cant do unicode domains

[cedar forum]

yeah you can

[gloomy root]

well the protocol could allow it

but browsers and most webservers will reject it

[cedar forum]

https://i❤.ws/

[gloomy root]

okay well, thats fucking painful

[cedar forum]

lol

not a lot of browsers render it though iirc

firefox doesn't

[gloomy root]

firefox renders it for me

[cedar forum]

oh could be my system lol

[gloomy root]

well actually nvm

[cedar forum]

but the thing is

this only works because they are ccTLDs

because they were around before ICANN was really structured and had regulations their contracts are basically "do whatever the fuck you want"

gTLDs and non-ccTLDs like .com, .org, .dev, etc. are all banned by ICANN from doing this

it's the same reason that http://ai./ works, because they are a ccTLD and they just... decided to put A records at the TLD level

gTLDs aren't allowed to do thta

[gloomy root]

good time with the web

[onyx mica]

Does django channels work pretty much like TCP sockets? Like from the client side, will a pure tcp connection from the client side get routed and hold it open like a tcp connection?

[gloomy root]

no

well

sorta

it gives you the ability to do websocket communication

which is bi-directional streaming

[onyx mica]

yeah, i think thats what I need. I just need a client to connect, send some byte data up to the server then decode into HEX then decode the HEX msg structure. Based on the message structure then send back a string of HEX chars to get converted back to bytes

and then drop then connection

[cedar forum]

is this client inside a web browser?

[onyx mica]

no its an iot device

[cedar forum]

if you're doing python client & python server you're better just doing something like ZMQ or MQTT imo, django channels is optimised for use as a web app component

[onyx mica]

that I can set its upload ip address and it will continually send byte data up via tcp to it

[cedar forum]

https://mqtt.org/ is pretty much the go-to for IoT communication

[onyx mica]

the device side is a third party device so I can't change it to MQTT

[cedar forum]

ahhhh gotcha

but it supports websockets?

[onyx mica]

i wasnt sure if it would work

its just base tcp i think

[cedar forum]

django channels isn't raw TCP yea

it's websockets, which is just an extension to HTTP

[onyx mica]

oh, that wont work then

[cedar forum]

it initiates with a HTTP request and then the server upgrades the connection to websockets for bi-directional comms

you'll probably just need raw TCP with sockets, gevent or asyncio

[onyx mica]

I was looking into twistd but I'm much more familar with django. I was trying to see if there was any way I could use django for this but I think django might not be able to handle this. I can still use asyncio or twisted as the device-to-server and use a django for the HTTP restframe work for user-to-server. Then have them share a database that could relay information down into the iot devices.

and also upload the device to data and place into the databases for users to querey

[cedar forum]

yeah django won't be able to do raw TCP sadly, you can have a django API that a middle-man socket server talks to though

[onyx mica]

when I use django I use a reverse proxy like nginx or caddy. Can I use those to sit between my tcp server and incoming traffic?

[cedar forum]

not really - nginx can proxy tcp connections but only to a tcp server

django channels is just not compatible with that, it's way more than raw TCP

[ember ledge]

What is the difference between "transporting x" and "moving x"?

[cedar forum]

in what context?

[ember ledge]

internet layers

like application, transport, network, link, physical link

[cedar forum]

could you link somewhere you are reading that? neither of those is truly standardised

there is a "transport layer" which is L4 of the OSI model

examples include TCP and UDP

[ember ledge]

yeah, but as I see it (and I WANT to be corrected) only the physical link is transporting

as in moving stuff from A to B

[cedar forum]

each layer in the model adds features to the transmission of data as a whole

so think, physical layer is the actual comms as you say

data link has some error correction for the physical layer

it's for frames on the same network

then you've got the network layer, which is generally IP

in a local network, devices communicate with mac addresses, on the internet they need public, unique addresses, hence IP adds that

but then what if you want multiple connections between the same two hosts / IP addresses?

well, the transport layer, TCP & UDP, add port numbers

so you can open a load and allocate a unique port number to them

then each layer above that moves more into application space so things vary more

but the words "transport" nor "moving" have a standardised definitiion

imo the OSI model has some odd naming for layers

the DoD model makes it a tad clearer

[ember ledge]

hi

I would like to create an http client/server and socket, how can I start or should I start?

[vernal jackal]

with almost the same headers as the postman

Except the native default postman ones

I send the same body and the only difference is in headers

[cursive jacinth]

How do DNS servers know which domain name corresponds to which IP address?

[cedar forum]

it's a distributed system, so it trickles down

if you are trying to resolve a domain like for example, foo.pythondiscord.com

first you go to what are known as the DNS roots, they're the servers which know where to find the other servers for each Top-Level Domain (TLD, like com, org, dev, etc.)

you ask the roots "hey! which servers know how to answer for .com?"

and then the roots will give you back a list of servers for .com

then you go to .com and go "hey! which servers know how to answer pythondiscord.com?"

and the .com nameservers will return the nameservers configured by you, now the ball is in your ground

then finally it'll come to your nameservers and go "hey! do you have a record for foo.pythondiscord.com?" to which the DNS server for pythondiscord.com can either say yes (and give you an IP as an A record or something), no and give you an NXDOMAIN error, or point you to another more specialised DNS server

hope that makes sense a bit @cursive jacinth, let me know if any sections are unclear

there is a tool which will actually show you this process step by step from asking the roots to asking the TLD nameservers and so on, so I invite you to give that a try and throw in some domains https://dns-lookup.jvns.ca/trace.html#pythondiscord.com

[split goblet]

question.
when I'm using asyncio streams; if I put a asyncio.sleep() before a data = reader.read().

   asyncio.sleep(100)
   data=reader.read(100)

it is still able to assign the reader data to the variable, and it does not miss it, does tht mean my computer is storing all the data being sent to it? waiting for some program to read and empty it?

[prisma cobalt]

lol unless you save the link somewhere theres no way your getting back to that website without a lot of effort, how do yuo type in those characters lol

[storm saffron]

Well it should translate to punycode if you type in accented characters

[ember ledge]

can you post those headers

both within python and postman

you can exclude all the sensitive information

[ember ledge]

first of all you are forgetting await before asyncio.sleep(100)

and what this sleep call would do is basically just freeze the execution in this context for 100 seconds (whether you are in a function or outside of it)

only after 100 seconds have passed your .read() call will be executed and the data will be read into the data variable

[split goblet]

yeah, i have tht in my code

[ember ledge]

but its not a good practice to just "stall" at an ongoing connection like that

the opposing party may just close the connection

[split goblet]

read from where? where is tht file stored on my computer? im using linux, so is tht stored in some file?

[ember ledge]

read from where?

from the connection

https://docs.python.org/3/library/asyncio-stream.html

reader, writer = asyncio.open_connection are used to open a connection with some other machine

in theory it could be a file as well if you are on linux but its definitely not your case

[split goblet]

so the bytes are sent from to a port in my computer, its not directly being a sent to the py program, rather comp is receiving them, doing something with, then my py prog can pick it up from somewhere

[ember ledge]

what is the hostname

you use

as the first parameter to open_connection

if its localhost or some local IP address

[split goblet]

reader, writer = await asyncio.open_connection(
'127.0.0.1', 8888)

[ember ledge]

okay 127.0.0.1 indicates localhost

which is your own machine

[split goblet]

yes

[ember ledge]

so yes in this case think of it as establishing a connection with some other program

running on your computer

the one that "listens" on port "8888"

[split goblet]

even when await asyncio.sleep(100)?

[ember ledge]

asyncio.sleep is not related to networking

at all

actually

it's just an asynchronous version of time.sleep()

so it really doesn't relate to reader, writer objects

as i said the only thing asyncio.sleep does it make your code sleep for the provided time

[split goblet]

no I mean, even when it is sleeping, how is it storing the data, after it exits the sleep is able to assign to read tht data?

[ember ledge]

after it exits the sleep is able to assign to read tht data?

yes if the other party didnt decide to drop the connection while your code was sleeping at asyncio.sleep()

due to reasons like "hmm I sent my information to the other client but it didn't acknowledge it for 100 seconds, i should just close the connection"

this could happen

[split goblet]

        await asyncio.sleep(100)
        data = await reader.read(10)

now some data has been sent to it when the program is sleeping,
now after the program continues.
await reader.read() is able to read the data that was sent to the computer while the program was sleeping.

so my question is that, the computer is storing the data that was sent to the open port, waiting for something to read and delete that data?

[ember ledge]

oh right

i think you are misunderstanding something

you probably don't need await asyncio.sleep(100) at all

[split goblet]

btw there is background code, but im not including it.

[ember ledge]

what is your reason for using it?

[split goblet]

client is sending data to the server, server processes that data, and sends processed data.

now if there is a fast client which is able to send me data, lots of times per second, it will take up resources of a slower client, which is bad, so I want something like a timeout, like 50 milliseconds, so the server is serving clients equally.

[ember ledge]

is this server side or client side

[split goblet]

server side

side question

data = await reader.read(100)

does this wait for 100 bytes? so if client sends 10 bytes, my program will keep on waiting untill 100 bytes are accumulated?

[ember ledge]

does this wait for 100 bytes?

this waits for at most 100 bytes

from the client

but say a client is only sending 10 bytes like this:
conn.send("0123456789".encode())

then data = await reader.read(100) will still successfully return

and save only 10 bytes to the data variable

[ember ledge]

and so no

is the answer to the last question

[vernal jackal]

i did, didnt work

[ember ledge]

what

no i meant

when you send those headers here

for us to see

you should exclude sensitive info

[prisma cobalt]

@limpid bay i dont even know if your active on this server anymore but i remembered this conversation about how my example wasnt working and it clicked and ive fixed it now i think 😂 sorry for the inconvenience

[limpid bay]

Oh nice, only 4 months late lol

I gave up on sockets that very day and been happily using RabbitMQ for everything since then

[prisma cobalt]

oops sorry about that, dont give up on sockets, i dont know what rabbitMQ is but sockets are cool lol

[cedar forum]

RabbitMQ is so cool!!!!!

one of the best things in the world

[ember ledge]

I just created a server and sent a message and a client. amazing lol

[steep juniper]

uh

[cedar forum]

It's great and Erlang!

[steep juniper]

vco hated me for saying it but imma do it anyways rabbitmq is worse that redis in speed and worse that kafka in regards to persistency

[cedar forum]

and all three have completely different use cases, lol

[steep juniper]

redis pub/sub is basically rabbitmq

[cedar forum]

no it isn't

rabbitmq is considerably more featureful than redis

[ember ledge]

Whenever I need a request, should I create a connection?

[steep juniper]

sure at the expense of a lot of speed

[steep juniper]

what library are we talking?

[ember ledge]

asyncio

[steep juniper]

id try to keep a client around as long as its needed

otherwise you're just wasting processing setting up and deleting the client

[cedar forum]

not really, rabbitmq is considerably better in terms of consistent latency for larger messages

[steep juniper]

¯_(ツ)_/¯

[ember ledge]

I'm using

loop.create_connection

but it seems that to send a message I must open a connection.

[cedar forum]

https://bravenewgeek.com/benchmarking-message-queue-latency/

specifically

[steep juniper]

thing is i havent played around much with messaging and am mostly repeating the experiences of friends

so im open to learn

[cedar forum]

I'm interested what benchmarks you are going off with the claims, but in all situations I've worked with MQs RMQ or Kafka are the go to choices, Redis is fast in some situations but when you have large messages it gets slow fast

[steep juniper]

sounds reasonable

since the ppl ive talked to so far use redis for thousands of really small messages

[cedar forum]

yeah we scaled RabbitMQ to around 30,000 events/s

and bandwidth wise around 120mb/s iirc

redis wasn't effective at that scale

[toxic mural]

redis pubsub doesn't really scale at all because it broadcasts all messages to all members if you're clustering

[cedar forum]

yeah

[steep juniper]

i've only really used kafka so far

which was amazing btw but has a different usecase

[cedar forum]

Kafka is nice

[ember ledge]

is it possible to keep an open connection using the low level of asyncio?

[rustic knoll]

Anyone use the Netmiko Library?

[cedar forum]

i mean you can host socket servers with asyncio

https://docs.python.org/3/library/asyncio-stream.html for TCP

or for UDP https://docs.python.org/3/library/asyncio-protocol.html#udp-echo-server

[prisma cobalt]

ive just been looking into this coincidently, it turns out asyncio completely does its own thing and i dont even need to manually import the socket module

ignore the Config bit

i hate it ngl, i have my own pure raw socket implementation which i much prefer

custom event loop time it is i guess

[ember ledge]

I was also able to connect

[prisma cobalt]

this is the proper stuff right here

[cedar forum]

indeed! under the hood it uses socket!

https://github.com/python/cpython/blob/794430700defb913512f871b701a888aa730de81/Lib/asyncio/base_events.py#L1385

[errant bay]

Lib/asyncio/base_events.py line 1385

async def create_server(```

[cedar forum]

that's where the magic happens

[prisma cobalt]

god the asyncio source code is complex lol

this is what i was trying to avoid

[ember ledge]

@cedar forum can I make http requests with the socket?

[cedar forum]

you can, yep

let me try setup a demo

[ember ledge]

well

So the requests are made through sockets?

[cedar forum]

import socket
import ssl

context = ssl.create_default_context()

MSG = b"""GET /humans.txt HTTP/1.1\r
Host: pythondiscord.com\r
User-Agent: Joe's script\r
\r\n"""

with socket.create_connection(('pythondiscord.com', 443)) as sock:
    with context.wrap_socket(sock, server_hostname='pythondiscord.com') as socket_ssl:
        socket_ssl.sendall(MSG)
        resp = socket_ssl.recv(4096)
        resp2 = socket_ssl.recv(4096)

print(resp.decode() + resp2.decode())

this is a HTTP request through the sockets module

you have to do all the HTTP yourself, which is why I advise highly against it, but this is a proof of concept that you can do it

if you run that you'll see the full HTTP transaction as a response, headers and content

I had to do two receives because it was too much for one buffer

[ember ledge]

Yes very difficult

[cedar forum]

so, urllib if you want something that ships with python already, alternatively httpx or requests

[prisma cobalt]

wait you can skip the whole api challenge if you add a user agent arg of Joe's script? 😂

[cedar forum]

that's a differeent thing

you are tihnking of https://challenge.pythondiscord.com/

this is juts humans.txt

[prisma cobalt]

oh right, the body response is the same

nice teapot reference btw

[ember ledge]

says i'm a robot

[prisma cobalt]

where do robots go

[ember ledge]

I never asked myself that question

[cedar forum]

correct, you need to think like a robot

[ember ledge]

https://hackwagon.com/how-to-think-like-a-bot-in-four-steps/

When I make a request to python.org it tells me that it is forbidden by administrative rules.

[limpid bay]

Finally someone understand me lol

I get nothing but shit for using RabbitMQ for everything including queueing my booty wipes

[cedar forum]

hahahhahaaha

[ember ledge]

I have 6 free redis servers

[limpid bay]

That's nuts though, is that with clustering too or just a single node?

[cedar forum]

clustering, but not a tonne of nodes tbqh

[limpid bay]

With load balancing in the cluster or just failover?

[cedar forum]

load balancing

[limpid bay]

Sounds sweet, I haven't gotten that deep yet, I'm barely peaking 10/s but good to hear that it can scale

[cedar forum]

yeah there were some wild people in the dept that managed rabbitmq

came in and just said "already i want a 10% increase by the time I go home" and they just went and did it

[limpid bay]

I don't really have any high-throughput tasks yet but I do use rabbit in some "unique" ways (or maybe not unique but no one recommended me to handle it with a MQ when I asked around) - for example I just made a bunch of queues for my distributed functions that need to run 24/7 but never more than one instance at a time, so I created a queue and put in a single empty message, consume the queue with ~10 servers and nack the message every time. Whenever a customer gets the message (using higher customer priority for the beefy server) it runs the function and repeat

Does that sound legit™️ or not really production proof?

Working like a charm so far but what do I know, certainly not anything about production stuff

(I've been trying to figure out what's the most bulletproof approach to running a function non-stop in a distributed way but always only on one server at a time)

[ember ledge]

@cedar forum I've already made my own requests, I'm excited.

[cedar forum]

if it's going to break, in my experience rabbit makes that evident early

[ember ledge]

anyone has experience with websockets (async)

[ember ledge]

When I make the request, many messages are received but never all in one, how can I solve this?

At least if it returned Content-Length

[cedar forum]

please don't ghost ping me

the solution is not rolling your own requests usually, or just reading until there is no more content to read

[ember ledge]

well

If Content-Length is provided, is it supposed to be multipart, then would all browsers expect the same?

[ember ledge]

its supposed to be multipart when Content-Type request header indicates so

https://stackoverflow.com/a/913749

[ember ledge]

can you show us how the request looks on the back-end side

[cursive jacinth]

Thanks, it explains a general idea.

[quaint lodge]

how do u guys usually get the access_token in Oauth2?

[hoary drum]

hey does anyone have a Nexus switch with port-channels in their core going toward the edge or towards a hypervisor? I have added functionality for this to an IP tracing script I have published to Github, but I unfortunately don't have a means to test it at the moment

[bright nest]

Traceback (most recent call last): File "C:\Users\-----------\Desktop\Python\Dr.Sploitberg\tests\test_ddos.py", line 54, in test_ddos_stop_method_twice ddos = hacking.tools.attack.DDoS(targetPort=self.sock.getsockname()[1], isTesting=True) OSError: [WinError 10022] An invalid argument was supplied could someone help me?

[ember ledge]

I am using the example of joe and loop.open_connection

[prisma cobalt]

you want help... in a script named test_ddos.py... with a line of code that reads hacking.tools.attack.DDoS(targetPort=...

[bright nest]

its not illegal

[prisma cobalt]

...yes it is

ddosing is illegal

[bright nest]

unless you do it on your own devices

[prisma cobalt]

...right

[bright nest]

google it then

[prisma cobalt]

no i know you can test your own systems

but

we dont help with that here since it can be used illegally very easily

[bright nest]

this was a waste of time then, ill go find someone who can be arsed

[clear bobcat]

!rule 5

[errant bay]

Rules

5. Do not provide or request help on projects that may break laws, breach terms of services, or are malicious or inappropriate.

[prisma cobalt]

exactly, sorry mate

also you do realise the hacking.tools.attack.DDoS is an unknown function where we don't know the required args to help with (since thats whats causing the error) @bright nest...

[bright nest]

thanks for the help (telling me where the issue is coming from)

and also, you make a good point about not knowing the args

[prisma cobalt]

[bright nest]

where would i go to get help on this topic?

[tough plume]

!warn 858340220353249311 Please do not use our server to advertise your personal YouTube channel.

[errant bay]

:incoming_envelope: :ok_hand: applied warning to @boreal plover.

[clear bobcat]

With DDoS software? Nowhere afaik

[steep juniper]

you will find a lot of help for protecting against ddos attacks but not for the attacks themselves, not to mention that any libraries and code that claims to do this, will most likely target you as well, leaving you extremely vulnerable to attacks

[steep juniper]

lol

works though

also is how most root certs work

they are all offline and the secondary keys are manually signed iirc

[clear bobcat]

That's it afaik

[steep juniper]

afaik lol

[dusky solstice]

Hello, I have a question on VPNs & proxies. Is anyone online ?

[ember ledge]

Yup

[dusky solstice]

It's about p2p.

[dusky solstice]

I think my ISP is blocking uploading/seeding.
How do I go about changing this ?

I'll be buying a VPN next month, but till then, I need to seed.

[cedar forum]

probably not a whole load of options without VPN

they are probably blocking ports or even protocol

alternatively, check port forwarding

but I'm not going to lie to you - they are blocking it for good reason

[plush raft]

Yo, anyone know specifically to terminate a process using a timer, it's used to end the connection for a user which is connected to the server if they are idle for 5 mins lets say and dont type anything/are idle, in other words it terminates if it doesnt detect a user input in that specific time

[cedar forum]

so

you can either spawn a task that waits 5 minutes and then kills the connection, and then every time the user types kill that task and spawn a new one counting down

you can do that with asyncio pretty easily if you are using async

[plush raft]

Hmm ok

[cedar forum]

the other idea would be to have a loop that runs once a minute and checks the last typed time on all the connections, if it finds one older than 5 minutes it will kill it

that means you don't need to spawn a new task every time the user types

[plush raft]

I think this one would be easier but less optimized

I will implement both, and see which one works smoother

Thank you, and have a good one

[cedar forum]

well, bear in mind that with that approach you don't have to kill & spawn tasks on every input, which might end up being fairly neutral in terms of optimisation

[cedar forum]

np, you too

[ember ledge]

Is anyone willing to help me tackle how to get this browser MU* hosted to my domain?

https://www.evennia.com/docs/latest/Online-Setup.html

[dark trench]

Anybody know how to link a django site to a physical robot on the same network using either sockets or http or something else. If you could help that would be great

[storm saffron]

well

what capabilities does the robot have

[tame grove]

Can someone suggest a way to connect to an ftp using ftp_tls, where I can use a custom port? I'm able to connect via filezilla, but when I use python, it will time out after using .connect().

Is there something I need to do in order to accept their certificate? I can't find anything in the documentation, nor much online.

Code examples (via phone)

with ftplib.FTP_TLS(host, port) as ftp:
    ftp.login(user, pwd)

Or

client = ftplib.FTP_TLS()
client.connect(host, port)
client.login(user, pwd)

[dark trench]

I literally just need to transmit a string through a view

[storm saffron]

right

what capabilities does the robot have

is it on a microcontroller so socket only, or is it an education kit so websocket might be better

[ember ledge]

Before I go ahead and learn SSH, let me make sure the use case I have in mind will be satisfied by it. Can I use an SSH server to run scripts on my connected, remote linux desktop?

[cedar forum]

SSH and remote desktop are different things

with RDP/remote desktop, you put in an address and get back a tunnel to the GUI of the end machine

with SSH you connect to the IP, login as a user and get a terminal shell, no GUI

you can indeed use that to run commands remotely

[ember ledge]

Oh that makes sense

[cedar forum]

ssh really isn't hard to learn, you only need a command or two and you're good to go

it's basically just ssh user@123.45.3.2

[ember ledge]

Can I still log in into a machine by SSH as a user that's already logged in through other means?

[cedar forum]

yep, they are completely different things

[ember ledge]

Oh that was easy

Thank you

[cedar forum]

👍

[analog fulcrum]

Hey Joe, I am applying for Computer Science next Year, can you please let me know what are the Main Topics are in this Stream.

[cedar forum]

stream?

[ember ledge]

heyyy How can i parse XML from url? Or just how to downlad the xml file?
(url: http://www.strava.cz/foxisapi/foxisapi.dll/istravne.istravne.process?xmljidelnickyA&zarizeni=3148 )

idk what to do, cuz the url dont end with .xml

[wicked vessel]

Hi

I have a question

I hope you can help

How can i download a HTML page using python?

[cedar forum]

requests or httpx are things to look into

https://www.python-httpx.org/ https://docs.python-requests.org/en/latest/

[hushed cave]

Hey what’s up guys! My name is Tony. I’m working an NFT project right now, but am new to coding. It’s a going to be a similar project to crypto punks/bored apes. It uses generative art. Would anyone be interested in collabing on this project?😎

[hearty zinc]

Hello, anyone can help me about download files trough sftp?

I have a simple script, and all is perfect with files less than 10mb, but when i needd to download files morr than 100 mb, is soooooo slow the download

I use pysftp

import math, pysftp, sys

myHostname = "192.168.1.1"
myUsername = "usuario"
myPassword = "password"

cnopts = pysftp.CnOpts()
cnopts.hostkeys = None  

with pysftp.Connection(host=myHostname, username=myUsername, password=myPassword, cnopts=cnopts) as sftp:

    remoteFilePath = '/path/demo.wmv'
    localFilePath = '/home/demo/demo.wmv'

    sftp.get(remoteFilePath, localFilePath)

[errant bay]

:incoming_envelope: :ok_hand: applied mute to @umbral charm until <t:1631760180:f> (9 minutes and 59 seconds) (reason: duplicates rule: sent 4 duplicated messages in 10s).

[umbral charm]

Hi, I'm Adrian, 19 years old looking for a python partner to learn with. I'm just starting (just finished Kaggle's python course). Happy to meet you guys!

[red geode]

guys i'm trying to collect data from a online game, so i was thinking about how i can do a reverse engineering with python to collect data from a online game, someone know where i can start to learn about that?

[deft phoenix]

how's this possible?

it is pending and fullfilled

and got a value

then how's this pending

[ember ledge]

what will happen if you send a unicode only character thru http, which uses utf8?

[ember ledge]

nvm im dumb as hell

[median prism]

Ayo so I need help port forwarding, I just got a new ISP and it directly passes the ip to my router rather than going through a modem. I port forwarded and it says the port is closed. I heard I need a static ip, but I have a eth0 connection

[clear bobcat]

Static IP is used to connect directly with your computer when you are away of home, port forwarding is different topic (like opening and closing connection on certain port)

[median prism]

ok

so it wont connect

through WAN

[median prism]

well found the issue

somehow my eth cord disconnected

[hardy elk]

I have a question: are there effective solutions to the halting problem involving heuristics only, not algorithms?

or are huristics just another kind of algorithm?

oops sorry wrong channel

[neat spade]

hey can someone pls help me out
i want to know if there is a way that i can preview data that is going to be uploaded on a website
automatically on a specific date and time?

[clear bobcat]

Yeah, quite wrong - more #algos-and-data-structs. However the algorithms cannot exist afaik

[clear bobcat]

Hmm, are you asking about a tool like WireShark?

[stiff mirage]

You could decrypt the tls connection with tcpdump and run -w to create wireshark-compatible pcaps, but like the previous speaker (class 💩 ), I don't really have any idea what you're talking about.

[lofty bough]

I'm using nginx to proxy HTTPS requests to an HTTP app exposed to localhost. However, my app responds with 307 Redirects which contain an http location. How can i intercept these redirects and rewrite them to redirect to https instead?

[cedar forum]

what is the app using under the hood?

[lofty bough]

Starlette running in a docker container