firewall-cmd --add-port=9090/tcp --permanent 开放某一个端口号
systemctl stop firewalld.service 停止防火墙
systemctl start firewalld.service 启动防火墙
firewall-cmd --add-port=9090/tcp --permanent 开放某一个端口号
systemctl stop firewalld.service 停止防火墙
systemctl start firewalld.service 启动防火墙