Chain INPUT (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT udp -- anywhere anywhere udp dpt:ssh ACCEPT tcp -- anywhere anywhere tcp dpt:https ACCEPT udp -- anywhere anywhere udp dpt:https ACCEPT tcp -- anywhere anywhere tcp dpt:afs3-fileserver ACCEPT udp -- anywhere anywhere udp dpt:afs3-fileserver ACCEPT tcp -- anywhere anywhere tcp dpt:afs3-callback ACCEPT udp -- anywhere anywhere udp dpt:afs3-callback ACCEPT icmp -- anywhere anywhere ACCEPT tcp -- anywhere anywhere tcp dpt:https ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED Chain FORWARD (policy DROP) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination