iptables configuration for Samba

1. Add the bolded text to /etc/sysconfig/iptables.
2. Restart iptables service
3. [root]# cat /etc/sysconfig/iptables
   # Generated by iptables-save v1.3.5 on Thu Aug 21 15:51:38 2008
   *filter
   :INPUT ACCEPT [9:1126]
   :FORWARD ACCEPT [0:0]
   :OUTPUT ACCEPT [169:26842]
   :RH-Firewall-1-INPUT - [0:0]
   -A INPUT -j RH-Firewall-1-INPUT
   -A FORWARD -j RH-Firewall-1-INPUT
   -A RH-Firewall-1-INPUT -i lo -j ACCEPT
   -A RH-Firewall-1-INPUT -p icmp -m icmp --icmp-type any -j ACCEPT
   -A RH-Firewall-1-INPUT -p esp -j ACCEPT
   -A RH-Firewall-1-INPUT -p ah -j ACCEPT
   -A RH-Firewall-1-INPUT -d 224.0.0.251 -p udp -m udp --dport 5353 -j ACCEPT
   -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
   -A RH-Firewall-1-INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 8000 -j ACCEPT
   -A RH-Firewall-1-INPUT -p udp -m udp --dport 137 -j ACCEPT
   -A RH-Firewall-1-INPUT -p udp -m udp --dport 138 -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 139 -j ACCEPT
   -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 445 -j ACCEPT
   -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
   COMMIT
   # Completed on Thu Aug 21 15:51:38 2008