How to whitelist CS 1.6 in ConfigServer Firewall

I have pretty much whitelisted all known steam ports but people still can't join my server when ConfigServer Firewall is active. Anybody knows how?

Best Answer

Not sure about GoldSrc games, but by default Source Games use the following ports:

27015 TCP - Used for RCON. Overridden using -port or +port.
27015 UDP - Used for getting information about the game server. Overridden using -port or +port.
27005 UDP - Clients communicate with the server on this port. Overridden using -clientport or +clientport.
27020 UDP - HLTV / SourceTV / DOTA TV listen for connections on this port. Overridden using +tv_port or disabled entirely using -nohltv.
26900/26901 UDP - Communication with the Steam backend. This replaces the old master server query port. Supposed to be 26900, but some Source games (read: most Source games) have an off by one error and actually use one port higher. Overridden using +steamport

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