CentOS7 防火墙 firewall 相关命令（启动、停止、状态）

查看状态： systemctl status firewalld.service

关闭： systemctl stop firewalld.service

开机禁用  ： systemctl disable firewalld.service

启动：systemctl start firewalld.service

防火墙随系统开启启动  ： systemctl enable firewalld.service