【摘要】 讨论了与网络运行和内部信息管理系统数据和信息安全相关的防火墙技术 ,介绍了基于Packetfilter和ProxyService的复合型防火墙系统的设计及其网络访问规则的实现更多还原

【Abstract】 The firewall technique related with the data security of network operation and internal information system is disussed, and the designing of the packet filter and proxy service based on combined firewall system and implementing of its network access regulations are introduced.更多还原