centos7查看防火墙状态

查看防火墙状态:
[root@localhost ~]# systemctl status firewalld

表示防火墙开启中 active (running)
表示防火墙关闭中 inactive (dead)

开启防火墙:
[root@localhost ~]# systemctl start firewalld

关闭防火墙:
[root@localhost ~]# systemctl stop firewalld