Server.cfg

server.cfg is the conventional name for the main configuration file for a server. It usually consists of a list of cvars which configure all the various server settings such as gametype and name in the server list. After all the cvars, there is usually a map line which starts up the first map and kicks the server into life.

This file doesn't need to have this name, but most server hosts will have their startup lines set to exec a file by that name.