centos出现 “FirewallD is not running”怎么办

热度：91 发布时间：2023-12-24 06:33:43.0

执行firewall-cmd --permanent --zone=public --add-port=3306/tcp，提示FirewallD is not running，如下图所示。
通过systemctl status firewalld查看firewalld状态，发现当前是dead状态，即防火墙未开启。
通过systemctl start firewalld开启防火墙，没有任何提示即开启成功。
再次通过systemctl status firewalld查看firewalld状态，显示running即已开启了。
如果要关闭防火墙设置，可能通过systemctl stop firewalld这条指令来关闭该功能。

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