Tutorials

The two things behind this startup error: the UDP port is already held by another process, or the +ip you gave is not an address on the machine.

The exact ports a CS 1.6 server uses — game, RCON, HLTV, and Steam master traffic — with copy-paste ufw and iptables rules and how to prove the port is really open.

How to move a CS 1.6 server off the default UDP 27015 with the -port launch parameter, why setting it in server.cfg fails, and how to run several servers on one box.