Centos7防火墙那些事

1.关闭防火墙 systemctl stop firewalld 2.查看防火墙 systemctl status firewalld 3.打开防火墙 systemctl start firewalld 4.重启防火墙 systemctl restart firewalld 5.开机自启防火墙 systemctl enable firewalld 6.开机禁用防御墙 systemctl disab

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