*filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m conntrack --ctstate INVALID -j DROP -A INPUT -i lo -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i eth1 -j ACCEPT -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -m set --match-set netwide4 src -j DROP -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT COMMIT *mangle :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] COMMIT *nat :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] COMMIT *raw :PREROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] COMMIT