Chain INPUT (policy DROP) target prot opt source destination ACCEPT 0 -- anywhere anywhere ACCEPT tcp -- anywhere anywhere tcp flags:ACK/ACK ACCEPT 0 -- anywhere anywhere state ESTABLISHED ACCEPT 0 -- anywhere anywhere state RELATED ACCEPT udp -- anywhere anywhere udp spt:domain dpts:1024:65535 ACCEPT icmp -- anywhere anywhere icmp echo-reply ACCEPT icmp -- anywhere anywhere icmp destination-unreachable ACCEPT icmp -- anywhere anywhere icmp source-quench ACCEPT icmp -- anywhere anywhere icmp echo-request ACCEPT icmp -- anywhere anywhere icmp time-exceeded ACCEPT icmp -- anywhere anywhere icmp parameter-problem ACCEPT tcp -- anywhere anywhere tcp dpt:ftp-data ACCEPT tcp -- anywhere anywhere tcp dpt:ftp ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT tcp -- anywhere anywhere tcp dpt:smtp ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:www ACCEPT tcp -- anywhere anywhere tcp dpt:pop3 ACCEPT tcp -- anywhere anywhere tcp dpt:auth ACCEPT tcp -- anywhere anywhere tcp dpt:sftp ACCEPT tcp -- anywhere anywhere tcp dpt:imap2 ACCEPT tcp -- anywhere anywhere tcp dpt:imap3 ACCEPT tcp -- anywhere anywhere tcp dpt:https ACCEPT tcp -- anywhere anywhere tcp dpt:kpasswd ACCEPT tcp -- anywhere anywhere tcp dpt:ftps-data ACCEPT tcp -- anywhere anywhere tcp dpt:ftps ACCEPT tcp -- anywhere anywhere tcp dpt:imaps ACCEPT tcp -- anywhere anywhere tcp dpt:pop3s ACCEPT tcp -- anywhere anywhere tcp dpt:webmin ACCEPT udp -- anywhere anywhere udp dpt:ssh ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:pop3 ACCEPT udp -- anywhere anywhere udp dpt:113 ACCEPT udp -- anywhere anywhere udp dpt:imap2 ACCEPT udp -- anywhere anywhere udp dpt:imap3 ACCEPT udp -- anywhere anywhere udp dpt:https ACCEPT udp -- anywhere anywhere udp dpt:imaps ACCEPT udp -- anywhere anywhere udp dpt:pop3s Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination