1 查看防火墙状态

[root@lvxinghao ~]# systemctl status firewalld



2 查看开机是否启动防火墙服务
[root@lvxinghao ~]# systemctl is-enabled firewalld



3 关闭防火墙
[root@lvxinghao ~]# systemctl stop firewalld
[root@lvxinghao ~]# systemctl status firewalld


4 禁用防火墙（系统启动时不启动防火墙服务）
[root@lvxinghao ~]# systemctl disable firewalld
[root@lvxinghao ~]# systemctl is-enabled firewalld