COD1/UO How to make cracked server show in masterlist?

[IzNoGoD]

Im gonna take a guess and say that either your cod uo does not have the edit for the masterserv timeout (still at 15 mins) or you run it at a different port.

[Vandal]

Im gonna take a guess and say that either your cod uo does not have the edit for the masterserv timeout (still at 15 mins) or you run it at a different port.

CoD2 v1.3- port 28960 iptables rules works!
sudo iptables -A INPUT -p udp -m string --algo bm --string "INVALID_CDKEY" --sport 20700 --dport 28960 -j DROP
sudo iptables -A INPUT -p udp -m string --algo bm --string "BANNED_CDKEY" --sport 20700 --dport 28960 -j DROP

CoD UO v1.51 - port 28962 - this iptables rules doesn't work
sudo iptables -A INPUT -p udp -m string --algo bm --string "INVALID_CDKEY" --sport 20700 --dport 28962 -j DROP
sudo iptables -A INPUT -p udp -m string --algo bm --string "BANNED_CDKEY" --sport 20700 --dport 28962 -j DROP

Using original, non-modified binaries from Activision