查看防火墙状态

    1. systemctl status firewalld.service

    绿的running表示防火墙开启
    执行关闭命令

    1. systemctl stop firewalld.service

    再次执行查看防火墙命令

    1. systemctl status firewalld.service

    执行开机禁用防火墙自启命令

    1. systemctl disable firewalld.service