Python RCON Help - New to development with RCON :: Source Dedicated Server (Linux)

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knownasthatguy 10 Jan, 2021 @ 6:47pm

Python RCON Help - New to development with RCON

I have a hosted service where I'm trying to connect to the RCON port and getting the error below.

valve.rcon.RCONAuthenticationError: Banned

I'm highly familiar with python, so I know the error isn't me. What I don't know is why I'm getting this error when I use the same creds as the RCON exe app my provider gave me.

What I need to know is if there is any documentation on the valve.a2s python api and the RCON api?

I'm using pip python-valve

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Showing 1-9 of 9 comments

Jessie 10 Jan, 2021 @ 7:39pm

https://developer.valvesoftware.com/wiki/Source_RCON_Protocol
https://github.com/serverstf/python-valve

I have used it before, and it works for me. Check the ip, port and password are correct

simplest example (from documentation)

import valve.rcon server_address = ("...", 27015) password = "top_secret" with valve.rcon.RCON(server_address, password) as rcon: print(rcon("echo Hello, world!"))

If the password has unicode characters in it, you might need

valve.rcon.RCONMessage.ENCODING = "utf-8"

Once you have been ip banned, you will need to unban before trying again

Last edited by Jessie; 10 Jan, 2021 @ 7:43pm

knownasthatguy 10 Jan, 2021 @ 7:48pm

I get the same error, but not when i use the exe file the provider gave me:

import valve.rcon

address = ('x.x.xx',port)
pwd = 'password'

with valve.rcon.RCON(address,pwd) as rcon:
print(rcon("echo Hello, world!"))

File "C:\Users\xxxx\PycharmProjects\rcon\venv\lib\site-packages\valve\rcon.py", line 524, in authenticate
raise RCONAuthenticationError(True)
valve.rcon.RCONAuthenticationError: Banned

knownasthatguy 10 Jan, 2021 @ 7:58pm

actually, now i'm getting this lol......

File "C:\Users\xxxx\PycharmProjects\rcon\venv\lib\site-packages\valve\rcon.py", line 180, in decode
id_, type_ = struct.unpack("<i", fixed_fields)
struct.error: unpack requires a buffer of 4 bytes

Process finished with exit code 1

Jessie 10 Jan, 2021 @ 7:59pm

It looks like python-valve is indicating you are banned.

If you can, check the server logs to see if the server has actually banned your ip (if it didn't ban you there may be an issue with python-valve)

The exception is being raised inside the authenticate method, around the _receive method

if timeout is None: timeout = self._timeout self._request(RCONMessage.Type.AUTH, self._password) try: response = self._receive(timeout) except RCONCommunicationError: raise RCONAuthenticationError(True)

Jessie 10 Jan, 2021 @ 8:02pm

What type of game server is this for?

knownasthatguy 10 Jan, 2021 @ 8:31pm

gportal, but I actually think it's working, just having an issue unpacking the data. I've never had to unpack structure data lol.

File "C:\Users\xxxx\PycharmProjects\rcon\venv\lib\site-packages\valve\rcon.py", line 171, in decode
size = struct.unpack("<ii", size_field)[0]
struct.error: unpack requires a buffer of 8 bytes

knownasthatguy 12 Jan, 2021 @ 4:55pm

any ideas on that error?

Jessie 13 Jan, 2021 @ 7:27pm

Originally posted by knownasthatguy:
gportal, but I actually think it's working, just having an issue unpacking the data. I've never had to unpack structure data lol.

File "C:\Users\xxxx\PycharmProjects\rcon\venv\lib\site-packages\valve\rcon.py", line 171, in decode
size = struct.unpack("<ii", size_field)[0]
struct.error: unpack requires a buffer of 8 bytes

I mean, what game / server is running ?