概述 当前,电子政务正处于迅速发展阶段,电子政务“十二金”工程已经颇具基础和规模,各地的电子政务建设也逐步进入详细设计和具体实施阶段。作为政府公用站点,既要访问Internet的共享信息资源,又要把Intranet的一部分信息对外提供服务,资源的共享的同时也带来了安全问题;而作为政府部门内部网,事关很 Overview At present, the e-government is in a stage of rapid development. The e-government “Twelve gold” project has been well established and scaled. The construction of e-government has gradually entered into the detailed design and implementation stage. As a government public site, it is necessary to access the Internet to share information resources, but also to provide part of the Intranet information services, resource sharing also brings security issues; and as a government intranet, is very important