[root@localhost html]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT
[root@localhost html]# /etc/init.d/iptables save
[root@localhost html]# /etc/init.d/iptables restart
[root@localhost html]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT
[root@localhost html]# /etc/init.d/iptables save
[root@localhost html]# /etc/init.d/iptables restart