## 查看防火墙状态 systemctl status firewalld ## 打开防火墙 systemctl start firewalld ## 关闭防火墙 systemctl stop firewalld ## 关闭自启动服务 systemctl disable firewalld.service ## 查看开放端口 firewall-cmd --list-ports --permanent firewall-cmd --list-port ## 开放端口 firewall-cmd --add-port=8080/tcp --permanent ## 重启防火墙 开放端口要重启生效 systemctl restart firewalld ## 重载配置 重启不管用则尝试重载配置再重启 firewall-cmd --reload