查询防火墙状态
service iptables status
临时启动/关闭防火墙
service iptables start
service iptables stop
永久启动/关闭防火墙
chkconfig iptables on
chkconfig iptables off
service iptables status
service iptables start
service iptables stop
chkconfig iptables on
chkconfig iptables off