Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere state ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp dpt:www 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:https ACCEPT tcp -- anywhere anywhere tcp dpt:pop3 ACCEPT tcp -- anywhere anywhere tcp dpt:imap2 ACCEPT tcp -- anywhere anywhere tcp dpt:smtp ACCEPT tcp -- anywhere anywhere tcp dpt:nameserver ACCEPT all -- anywhere anywhere ACCEPT icmp -- anywhere anywhere DROP icmp -- anywhere anywhere ACCEPT icmp -- anywhere anywhere icmp echo-request DROP tcp -- anywhere anywhere tcp dpt:nameserver ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:domain Chain FORWARD (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp flags:SYN,RST,ACK/SYN limit: avg 1/sec burst 5 ACCEPT tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,ACK/RST limit: avg 1/sec burst 5 ACCEPT icmp -- anywhere anywhere icmp echo-request limit: avg 1/sec burst 5 DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,SYN,RST,PSH,ACK,URG DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/NONE TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU ACCEPT icmp -- anywhere anywhere icmp echo-request ACCEPT icmp -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp spt:www ACCEPT tcp -- anywhere anywhere tcp spt:ftp-data ACCEPT tcp -- anywhere anywhere tcp spt:ftp ACCEPT tcp -- anywhere anywhere tcp spt:ssh ACCEPT tcp -- anywhere anywhere tcp spt:https ACCEPT tcp -- anywhere anywhere tcp spt:pop3 ACCEPT tcp -- anywhere anywhere tcp spt:imap2 ACCEPT tcp -- anywhere anywhere tcp spt:smtp ACCEPT tcp -- anywhere anywhere tcp spt:nameserver ACCEPT all -- anywhere anywhere TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU ACCEPT icmp -- anywhere anywhere DROP icmp -- anywhere anywhere ACCEPT icmp -- anywhere anywhere icmp echo-request DROP tcp -- anywhere anywhere tcp dpt:nameserver ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:domain Chain check-flags (0 references) target prot opt source destination LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,PSH,URG limit: avg 5/min burst 5 LOG level alert prefix `NMAP-XMAS:' DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,PSH,URG LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,SYN,RST,PSH,ACK,URG limit: avg 5/min burst 5 LOG level alert prefix `XMAS:' DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,SYN,RST,PSH,ACK,URG LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,SYN,RST,ACK,URG limit: avg 5/min burst 5 LOG level alert prefix `XMAS-PSH:' DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,SYN,RST,ACK,URG LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/NONE limit: avg 5/min burst 5 LOG level alert prefix `NULL_SCAN:' DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,PSH,ACK,URG/NONE LOG tcp -- anywhere anywhere tcp flags:SYN,RST/SYN,RST limit: avg 5/min burst 5 LOG level notice prefix `SYN/RST:' DROP tcp -- anywhere anywhere tcp flags:SYN,RST/SYN,RST LOG tcp -- anywhere anywhere tcp flags:FIN,SYN/FIN,SYN limit: avg 5/min burst 5 LOG level notice prefix `SYN/FIN:' DROP tcp -- anywhere anywhere tcp flags:FIN,SYN/FIN,SYN