Both

k tnx

ill try to add srv now

when i add new rule it gotta be port?

and if its port is it tcp or udp

and how to port foward ( what are things ,ips / ports? idk how they are called but they are things that u put first and 2nd and then u put ur ip then select tcp or udp)?

what Linux system you are using (sentos 6 , centos 7 , ubuntu , debien ) ?

try this maybe it will help you , open your iptables rules and give permission to Gametracker ips to scan your server.
write like this in iptables :

-A INPUT -s 208.167.241.190/32 -j ACCEPT
-A INPUT -s 208.167.241.185/32 -j ACCEPT
-A INPUT -s 208.167.241.186/32 -j ACCEPT
-A INPUT -s 208.167.241.183/32 -j ACCEPT
-A INPUT -s 208.167.241.189/32 -j ACCEPT
-A INPUT -s 108.61.78.147/32 -j ACCEPT
-A INPUT -s 108.61.78.148/32 -j ACCEPT
-A INPUT -s 108.61.78.149/32 -j ACCEPT
-A INPUT -s 108.61.78.150/32 -j ACCEPT

save the file , then open the SSH tool write "service iptables restart"
Good-Luck

Linux? im using windows

VPS windows or windows of your home computer ?

windows 7 my home pc?

i don't think you can add it to gametracker .