/SLASHPLAY
setmaster
Configures master servers the server reports to. Mostly a leftover from the pre-Steam era.
setmaster <args> Examples
heartbeat Usually what you want: report to the masters now.
Arguments
argsRequired- Master server options, such as an address to add.
What it does
Used to add or remove the master servers that list your server. On current Steam builds the server registers with Steam on its own, so you normally never need it. Use heartbeat to report to the masters right away.
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to cstrike/server.cfg. New to this? Start a CS 1.6 server first.
Your own
CS 1.6 server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.