当前位置: 首页 > 文章 > 计算机网络安全中的防火墙技术研究 湖南生态科学学报 2008,14 (3) 27-30
Position: Home > Articles > The Network Firewall of Computer Security Technology Journal of Hunan Ecological Science 2008,14 (3) 27-30

计算机网络安全中的防火墙技术研究

作  者:
李北枝
单  位:
衡南县教师进修学校综合教研究室
关键词:
网络安全;防火墙;分组过滤;代理服务;双宿主机
摘  要:
介绍一些经常性的网络安全问题,以及用一种相应的防御对策--网络防火墙,它技术的核心思想是在不安全的网络环境中构造一个相对安全的子网环境.讨论了实现防火墙的两种主要技术手段:一种是基于分组过滤技术(Packet filtering),它的代表是在筛选路由器上实现的防火墙功能;一种是基于代理技术(Prox-y),它的代表是应用层网关上实现的防火墙功能.参5.
译  名:
The Network Firewall of Computer Security Technology
作  者:
LI Bei-zhi(Synthesis Research Office,School of Advanced Courses for Teachers in Hengnan County,Hengyang 421100 China)
关键词:
network security;firewall;grouping filters;proxy;dual-homed host
摘  要:
The core thought of firewall technology is to construct a structure relative security sub-net environment in the unsafe Internet environment.This article introduced the basic concept of firewall technology and corresponding strategies to it.It including two main technical method of the firewall: One is filters the technology based on the grouping(Packet filtering) whose representative is the firewall function which realizes on the screening router;the other is based on the proxy technology(Proxy) whose representative is the firewall function which realizes on the application level gateway.5refs.

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