001、查看防火墙状态
systemctl status firewalld
002、关闭防火墙
systemctl stop firewalld
003、查看关闭防火墙状态
systemctl status firewalld
004、启动防火墙并查看状态
systemctl start firewalld
systemctl status firewalld
005、永久关闭防火墙（开机后为关闭状态）
systemctl disable firewalld
006、设置开启启动防火墙
systemctl enable firewalld
标签：status,启动,防火墙,firewalld,centos7,systemctl,关闭 From： https://www.cnblogs.com/liujiaxin2018/p/16799119.html