A couple of days ago, i found this thread: https://steamcommunity.com/discussio...8351344359625/
With STEAM_GAMESERVER_A2S_INFO_REQUIRE_CHALLENGE=1 my sourcebans page (game monitor) shows the server is offline, but i can join in my server, find on "Find servers - Internet, Favourites". Same problem with Gametracker (Showing offline) but server is Online.
Tested on my CS:GO server, and clean CS:S server from another Dedicated Server.
By default, the "challenge" command is disabled, but in the future, i think it will be enabled, so it's need to be updated in sourcebans to show server status online if "challenge" is on?
Asking this, because i'm getting whese query attacks, so i'm trying protect the servers with iptables, without any damage.