[root@localhost squid]# iptables -L
Chain INPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
ACCEPT     icmp --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:squid
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:10000
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:nameserver
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootpc
ACCEPT     udp  --  anywhere             anywhere            udp dpt:bootpc

Chain FORWARD (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp-data
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp-data
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:smtp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:pop3
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:imap
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:http
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:https
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:1863
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5000
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5001
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5005
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5050
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5100
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5005
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5050
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:5100
ACCEPT     tcp  --  anywhere             anywhere            tcp dpts:6660:6670
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:afs3-fileserver
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:28805
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:32196
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:27315
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:51215
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:32196
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:11001
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:11001
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp-data
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp-data
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp-data

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp-data
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp-data
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ftp
[root@localhost squid]#