Quick answer: CS2 dedicated = SteamCMD app 730 + GSLT + +map + port 27015.
- SteamCMD
app_update 730 validate - Create GSLT (app 730)
- Start srcds/cs2 dedicated with token and map
- Open 27015 TCP+UDP
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Frequently asked questions (FAQ)
How do I install a CS2 server?
SteamCMD, anonymous login, app_update 730, GSLT token, start srcds with +map and +sv_setsteamaccount, open 27015.
Where do I get the token?
steamcommunity.com/dev/managegameservers – game ID 730. Keep the token secret.