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

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