1,查看防火墙状态
# service iptables status //或 # /etc/init.d/iptables status
2,防火墙的启动、重启,关闭
# service iptables start
# service iptables restart
# service iptables stop
3,开放端口
# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT # /etc/rc.d/init.d/iptables save
