/SLASHPLAY
How to set a password on a TF2 server
Type sv_password "scrim123" in the server console so players must enter it to join. sv_password "" removes it.
sv_password
Sets a password players must enter to join the server. Empty means no password.
sv_password <password> Examples
sv_password "scrim123" Lock the server for a scrim.
sv_password "" Open the server again.
Arguments
passwordRequired- Join password. Use "" to remove it.
On SLASHPLAY
SLASHPLAY manages this one: set the join password with Join password on the server's General tab. A value set in the console or a cfg overrides the dashboard and the copied connect line stops working.
What it does
Use it for private matches, scrims or closed testing. Players connect with connect <ip> and are then asked for the password, or set password before connecting.
The game's own description: Server password for entry into multiplayer games
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 tf/cfg/server.cfg. New to this? Start a TF2 server first.
Your own
TF2 server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.