一、unmask
systemctl unmask firewalld.service
二、开放端口
firewall-cmd --zone=public --add-port=80/tcp --permanent
三、开启防火墙
systemctl start firewalld
systemctl unmask firewalld.service
firewall-cmd --zone=public --add-port=80/tcp --permanent
systemctl start firewalld
本文标题:CentOS 7 防火墙常用命令
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