[CoD2][Tutorial] How to make your cracked server show up in the master list

[NemanjA]

I get a error in iptables when i write this code:

iptables -A INPUT -p udp -m string --algo bm --string "BANNED_CDKEY" --sport 20700 --dport 28961 -j DROP
iptables -A INPUT -p udp -m string --algo bm --string "INVALID_CDKEY" --sport 20700 --dport 28961 -j DROP

Error message:

iptables: No chain/target/match by that name.

What to do?

[Mitch]

I get a error in iptables when i write this code:

iptables -A INPUT -p udp -m string --algo bm --string "BANNED_CDKEY" --sport 20700 --dport 28961 -j DROP
iptables -A INPUT -p udp -m string --algo bm --string "INVALID_CDKEY" --sport 20700 --dport 28961 -j DROP

Error message:

iptables: No chain/target/match by that name.

What to do?

I assume you ran the commands with sudo or as root. What linux are you using?
What output do you get when you run 'iptables --list-rules'?