1.防火墙开启/关闭firewalld：systemctl start/stop firewalld查看运行状态：firewall-cmd —state查看是否开启：systemctl status firewalld放通端口：firewall-cmd --zone=public --add-port=8080/tcp --permanent重新加载配置文件：firewall-cmd --reload查看防火墙配置：iptables -nL
