Make the change
- Stop the server and download a copy of cstrike/cfg/server.cfg.
- Add or update one sv_password line with your chosen join password in straight quotes.
- Remove conflicting duplicate sv_password entries from the same configuration.
- Start and connect from the game, supplying the new password when requested.
- Test again after a map change if you use map-specific configs or plugins.
Check the result
If the password changes during rotation, look for another sv_password assignment in map configs or plugins. Keep rcon_password separate and private; it grants administration rather than entry to a match.
Related guides
Counter-Strike: Source server not showing up or unable to connect
Documentation
Server configuration reference · Project documentation 2
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