Your server will be removed from the blacklist if you do the following:
No more redirect servers. Expose your real server to the master server. No falsifying of server statistics (no more fake players).
I would recommend you try these iptables rules:
Code:
iptables -A INPUT -p UDP -m length --length 20:512 -m recent --set --name getstatus_cod
iptables -A INPUT -p UDP -m string --algo bm --string "getstatus" -m recent --update --seconds 1 --hitcount 2 --name getstatus_cod -j DROP
iptables -A INPUT -p UDP -m string --algo bm --string "getchallenge" -m recent --update --seconds 1 --hitcount 2 --name getstatus_cod -j DROP
This should help with DDoS attacks against MOH. Each time the server is rebooted, you will lose these IP tables rules. Make sure they are re-added upon boot.