iptables -A INPUT -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j REJECT
iptables: No chain/target/match by that name.
iptables -t nat -A INPUT -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j REJECT
iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
В чем проблема? Как я могу ограничить лимит подключений с одного IP?