*filter
:INPUT DROP
:FORWARD DROP
:OUTPUT ACCEPT
-A INPUT -s 110.240.0.0/12 -m comment --comment "Bytespider crawler, aggressive" -j DROP
-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p icmp --icmp-type ping -j ACCEPT
-A INPUT -p tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m multiport --dports 80,443 -j ACCEPT
-A INPUT -p tcp --dport 5665 -j ACCEPT
COMMIT