centOS 6 和centOS 7 防火墙指令

centOS 6

service iptables status 查看防火墙状态

service iptables stop 关闭防火墙

chkconfig iptables off永久关闭防火墙

centOS 7

systemctl status firewalld.service  查看防火墙状态

systemctl stop firewalld.service 关闭防火墙

systemctl disable firewalld.service 禁止firewall开机启动