In the game
Open chat and type /AdminPassword <your ADMIN_PASSWORD>. Then:
/Broadcast Message: message to everyone (no spaces in older versions; use_)./KickPlayer <SteamID or name>,/BanPlayer <SteamID>/TeleportToPlayer <name>,/TeleportToMe <name>/ShowPlayers: list with IDs/Save: save now/Shutdown <seconds> <message>: graceful shutdown with warning/DoExit: immediate shutdown
From the panel console (RCON)
RCON is enabled on our servers (RCON_PORT in Startup). The panel console is wired to it: type Broadcast Restart_in_5_minutes, Save, ShowPlayers, Shutdown 60 Restart without the slash. Handy for schedules: a Send command task Save before a nightly restart keeps everything.
External tools (e.g. PalCon, generic RCON clients) connect to node1.penguhost.com:<RCON port> with the admin password.