In this paper , we firstly analyze system structures and working principles and functions of user management and controlling system . secondly , we research some key technologies of network controlling deeply , such as packet filtering technology and content filtering technology . finally , we design and implement the management and controlling software system of network controller and test it 本文首先分析了用户管理控制系统的系统结构、工作原理和功能,然后深入研究了上网控制的若干关键技术,如包过滤技术和内容过滤技术,最后设计和实现了上网控制器的管理控制软件系统,并对其进行了功能测试。
