Why doesn't Steam server search see my server, on Linux OS?

Question

linux

I have a server running Ubuntu Server 18.05 LTS.
I installed SteamCMD on it, and installed the Unturned server.
The game server port is open, checked when connecting from another network.

Maybe Steam needs to open some specials. ports for it?

Answer 1

Have you read the manual?
Check all items:
https://unturned.fandom.com/wiki/Hosting_a_Dedicat...