[root@server ~]# /sbin/iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
DROP all -f anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ULOG all -- anywhere anywhere ULOG copy_range 48 nlgroup 1 prefix `icount' queue_threshold 50
ACCEPT tcp -- anywhere anywhere tcp dpt:webcache
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT udp -- anywhere anywhere udp dpt:bootpc
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:ftp-data
ACCEPT udp -- anywhere anywhere udp dpt:ftp-data
ACCEPT tcp -- anywhere anywhere tcp dpt:ftp
ACCEPT udp -- anywhere anywhere udp dpt:ftp
ACCEPT tcp -- anywhere anywhere tcp dpt:imap
ACCEPT udp -- anywhere anywhere udp dpt:imap
ACCEPT tcp -- anywhere anywhere tcp dpt:imap3
ACCEPT udp -- anywhere anywhere udp dpt:imap3
ACCEPT tcp -- anywhere anywhere tcp dpt:imaps
ACCEPT udp -- anywhere anywhere udp dpt:imaps
ACCEPT tcp -- anywhere anywhere tcp dpt:ldap
ACCEPT udp -- anywhere anywhere udp dpt:openvpn
ACCEPT tcp -- anywhere anywhere tcp dpt:openvpn
ACCEPT tcp -- anywhere anywhere tcp dpt:pop3
ACCEPT udp -- anywhere anywhere udp dpt:pop3
ACCEPT tcp -- anywhere anywhere tcp dpt:pop3s
ACCEPT udp -- anywhere anywhere udp dpt:pop3s
ACCEPT tcp -- anywhere anywhere tcp dpt:squid
ACCEPT tcp -- anywhere anywhere tcp dpt:netbios-ns
ACCEPT udp -- anywhere anywhere udp dpt:netbios-ns
ACCEPT tcp -- anywhere anywhere tcp dpt:netbios-dgm
ACCEPT udp -- anywhere anywhere udp dpt:netbios-dgm
ACCEPT tcp -- anywhere anywhere tcp dpt:netbios-ssn
ACCEPT udp -- anywhere anywhere udp dpt:netbios-ssn
ACCEPT tcp -- anywhere anywhere tcp dpt:microsoft-ds
ACCEPT udp -- anywhere anywhere udp dpt:microsoft-ds
ACCEPT tcp -- anywhere anywhere tcp dpt:smtp
ACCEPT udp -- anywhere anywhere udp dpt:smtp
ACCEPT tcp -- anywhere anywhere tcp dpt:urd
ACCEPT tcp -- anywhere anywhere tcp dpt:submission
ACCEPT udp -- anywhere anywhere udp dpt:submission
ACCEPT tcp -- anywhere anywhere tcp dpt:snmp
ACCEPT udp -- anywhere anywhere udp dpt:snmp
ACCEPT udp -- anywhere anywhere udp dpt:snmptrap
ACCEPT tcp -- anywhere anywhere tcp dpt:ssh
ACCEPT udp -- anywhere anywhere udp dpt:ssh
ACCEPT tcp -- anywhere anywhere tcp dpt:telnet
ACCEPT udp -- anywhere anywhere udp dpt:telnet
ACCEPT tcp -- anywhere anywhere tcp dpt:http
ACCEPT udp -- anywhere anywhere udp dpt:http
ACCEPT tcp -- anywhere anywhere tcp dpt:https
ACCEPT udp -- anywhere anywhere udp dpt:https
ACCEPT gre -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere tcp dpt:1723
ACCEPT icmp -- anywhere anywhere
DROP all -- anywhere anywhere
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED
ACCEPT all -- 192.168.122.0/24 anywhere
ACCEPT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
DROP all -f anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ULOG all -- anywhere anywhere ULOG copy_range 48 nlgroup 1 prefix `fcount' queue_threshold 50
ACCEPT all -- anywhere 10.0.1.0/25
ACCEPT all -- anywhere anywhere PHYSDEV match --physdev-is-bridged
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
DROP all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
DROP all -f anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ULOG all -- anywhere anywhere ULOG copy_range 48 nlgroup 1 prefix `ocount' queue_threshold 50