1·4899不象3389那样，是系统自带的服务。
Don't like 3389, 4899 is the service system.
2·配置您的路由器转发的外部端口22内部的3389端口在您的计算机的IP地址。
Configure your router to forward the external port 22 to internal port 3389 on your computer's IP address.
3·并根据远程安装3389终端服务的方法和步骤，介绍了怎样阻止3389非法访问的具体措施。
According to the ways and steps of the 3389 terminal installed in remote distance, it discusses some measures to prevent from invalid access for 3389 terminal.