计算机网络安全与防火墙技术

随着信息技术的高速发展和网络信息量的飞速膨胀，同时应有的安全防范措施相对薄弱，因此，非法入侵、对数据进行篡改和窃听等事件时有发生。本文就保证信息安全阐述了网络安全的必要性，论述了网络防火墙安全技术的功能、主要技术、配置、安全措施和防火墙设计思路等。

Security of Computer Network and Firewall Techniques

Now information technique is rapid developing and information contents of network are increasing very fast, but correspondent safety guard measures are relatively weak, so that illegal infection, data distortion, interception and other things in network occur now and then. In this paper, the necessity of network security being sure of information safety is elaborated. The functions of firewall safety techniques, main techniques, configuration, safety measures, design ideas of firewall and so on are expounded.