centos防火墙操作命令

• 关闭防火墙
  sudo systemctl stop firewalld

• 查看防火墙
  sudo systemctl status firewalld

• 放行端口
  sudo firewall-cmd --zone=public --add-port=5000/tcp --permanent

• 刷新
  sudo firewall-cmd --reload

• 查看
  sudo firewall-cmd --list-ports