I executed /etc/init.d/iptables and got: Firewall is stopped.
The output for iptables -L is:
[root@ddnsserver1 servadmin]# /sbin/iptables -L
Chain FORWARD (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
DROP all -- anywhere anywhere
Chain INPUT (policy DROP)
target prot opt source destination
DROP tcp -- anywhere 127.0.0.0/8
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
DROP all -- BASE-ADDRESS.MCAST.NET/4 anywhere
PUB_IN all -- anywhere anywhere
PUB_IN all -- anywhere anywhere
PUB_IN all -- anywhere anywhere
DROP all -- anywhere anywhere
Chain INT_IN (0 references)
target prot opt source destination
ACCEPT icmp -- anywhere anywhere
DROP all -- anywhere anywhere
Chain INT_OUT (0 references)
target prot opt source destination
ACCEPT icmp -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
PUB_OUT all -- anywhere anywhere
PUB_OUT all -- anywhere anywhere
PUB_OUT all -- anywhere anywhere
Chain PAROLE (10 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
Chain PUB_IN (3 references)
target prot opt source destination
ACCEPT icmp -- anywhere anywhere icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere icmp echo-reply
ACCEPT icmp -- anywhere anywhere icmp time-exceeded
ACCEPT icmp -- anywhere anywhere icmp echo-request
PAROLE tcp -- anywhere anywhere tcp dpt:ftp
PAROLE tcp -- anywhere anywhere tcp dpt:ssh
PAROLE tcp -- anywhere anywhere tcp dpt:smtp
PAROLE tcp -- anywhere anywhere tcp dpt:domain
PAROLE tcp -- anywhere anywhere tcp dpt:http
PAROLE tcp -- anywhere anywhere tcp dpt:81
PAROLE tcp -- anywhere anywhere tcp dpt
op3
PAROLE tcp -- anywhere anywhere tcp dpt:https
PAROLE tcp -- anywhere anywhere tcp dpt:10000
PAROLE tcp -- anywhere anywhere tcp dpt:netbios-ns
ACCEPT udp -- anywhere anywhere udp dpt:domain
DROP icmp -- anywhere anywhere
DROP all -- anywhere anywhere
Chain PUB_OUT (3 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere