con il comando iptables -L mi dà il seguente:
:~$ sudo iptables -L
Password:
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT tcp -- . anywhere tcp flags:!FIN,SYN,RST,ACK/SYN
ACCEPT udp -- . anywhere
ACCEPT 0 -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere limit: avg 10/sec burst 5
DROP 0 -- anywhere 255.255.255.255
DROP 0 -- anywhere 192.168.1.255
DROP 0 -- BASE-ADDRESS.MCAST.NET/8 anywhere
DROP 0 -- anywhere base-address.mcast.net/8
DROP 0 -- 255.255.255.255 anywhere
DROP 0 -- anywhere 0.0.0.0
DROP 0 -- anywhere anywhere state INVALID
LSI 0 -f anywhere anywhere limit: avg 10/min burst 5
INBOUND 0 -- anywhere anywhere
LOG_FILTER 0 -- anywhere anywhere
LOG 0 -- anywhere anywhere LOG level info prefix `Unknown Input'
Chain FORWARD (policy DROP)
target prot opt source destination
ACCEPT icmp -- anywhere anywhere limit: avg 10/sec burst 5
LOG_FILTER 0 -- anywhere anywhere
LOG 0 -- anywhere anywhere LOG level info prefix `Unknown Forward'
Chain OUTPUT (policy DROP)
target prot opt source destination
ACCEPT tcp -- 192.168.1.2 . tcp dpt:domain
ACCEPT udp -- 192.168.1.2 . udp dpt:domain
ACCEPT 0 -- anywhere anywhere
DROP 0 -- base-address.mcast.net/8 anywhere
DROP 0 -- anywhere base-address.mcast.net/8
DROP 0 -- 255.255.255.255 anywhere
DROP 0 -- anywhere 0.0.0.0
DROP 0 -- anywhere anywhere state INVALID
OUTBOUND 0 -- anywhere anywhere
LOG_FILTER 0 -- anywhere anywhere
LOG 0 -- anywhere anywhere LOG level info prefix `Unknown Output'
Chain INBOUND (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT udp -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT 0 -- 192.168.1.2 anywhere
LSI 0 -- anywhere anywhere
Chain LOG_FILTER (5 references)
target prot opt source destination
Chain LSI (2 references)
target prot opt source destination
LOG_FILTER 0 -- anywhere anywhere
LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,ACK/SYN limit: avg 1/sec burst 5 LOG level info prefix `Inbound '
DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,ACK/RST limit: avg 1/sec burst 5 LOG level info prefix `Inbound '
DROP tcp -- anywhere anywhere tcp flags:FIN,SYN,RST,ACK/RST
LOG icmp -- anywhere anywhere icmp echo-request limit: avg 1/sec burst 5 LOG level info prefix `Inbound '
DROP icmp -- anywhere anywhere icmp echo-request
LOG 0 -- anywhere anywhere limit: avg 5/sec burst 5 LOG level info prefix `Inbound '
DROP 0 -- anywhere anywhere
Chain LSO (0 references)
target prot opt source destination
LOG_FILTER 0 -- anywhere anywhere
LOG 0 -- anywhere anywhere limit: avg 5/sec burst 5 LOG level info prefix `Outbound '
REJECT 0 -- anywhere anywhere reject-with icmp-port-unreachable
Chain OUTBOUND (1 references)
target prot opt source destination
ACCEPT icmp -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT udp -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT 0 -- anywhere anywhere