企业网安全架构的研究与验证毕业设计文集

毕业设计（论文） 题目：企业网安全架构的研究与验证 企业网安全架构的研究与验证

I 企业网安全架构的研究与验证 摘要 Internet技术日趋成熟，已经开始了从以提供和保证网络联通性为主要目标的第一代Internet技术向以提供网络数据信息服务为特征的第二代Internet技术的过渡。此同时，数以万计的商业公司、政府机构在多年的犹豫、观望之后，意识到采用Internet技术并使企业数据通信网络成为Internet的延伸已成为发展趋势。这使得企业数据网络正迅速地从以封闭型的专线、专网为特征的第二代技术转向以Internet互联技术为基础的第三代企业信息网络。因此，这些都促使了计算机网络互联技术迅速的大规模使用。众所周知，作为全球使用范围最大的信息网，Internet自身协议的开放性极大地方便了各种计算机连网，拓宽了共享资源。但是，由于在早期网络协议设计上对安全问题的忽视，以及在管理和使用上的无政府状态，逐渐使Internet自身安全受到严重威胁，与它有关的安全事故屡有发生。网络安全的威胁主要表现在：非授权访问，冒充合法用户，破坏数据完整性，干扰系统正常运行，利用网络传播病毒，线路窃听等

关键字：企业网；安全；网络 企业网安全架构的研究与验证

II ABSTRACT

Title The Document of Computer Network Security Abstract with the computer network development. Internet has already turned from the first generation the second. Meanwhile, thousands of company and governments realize the importance of Internet and take measures to build their own Network, so that extend the development of the Internet. This makes the Internet transfer from the second generation to the third which feature’s basis of Inter connecting.All of this above contributes to the large scale use of Interconnecting. As it is known to us all, Internet has the largest information net, it is the openness of the protocol that continent the link of variety nets and extends the sharing resources. However, because of the neglecting of Network security and the government management seriously threats the safety of Internet.The dangers appear: illegal visiting, pretending the management,destroyingthedatabase, interrupting the setup of system, spreading the virus and so on.Thisasks us to pay more attention to the safety of Internet twister.

KEY WORDS ：enterprise network；safe；network 企业网安全架构的研究与验证

III 目录 第 1 章绪论 1.1. 研究的背景和意义 ...................................................................................................................... 1 1.2.企业网概述以及安全隐患 ............................................................................................................ 1 1.2.1企业网的概述 ............................................................................................................................. 1 1.2.2企业网络安全隐患 ..................................................................................................................... 2 第2章企业网相关技术背景与研究 2.1防火墙技术 .................................................................................................................................... 6 2.2 入侵检测技术 ............................................................................................................................... 7 2.3病毒防护技术 ................................................................................................................................ 9 2.5拒绝服务检测与防御 .................................................................................................................. 12 2.6虚拟专用技术 .............................................................................................................................. 12 第3章企业网的架构与部署 3.1.企业网安全模型的架构 .............................................................................................................. 14 3.2.1 人员安全 .............................................................................................................................. 18 3.2.2安全管理 ............................................................................................................................... 19 3.2.3 物理安全 .............................................................................................................................. 19 3.2.4 系统安全 .............................................................................................................................. 20 3.2.5 网络层安全 .......................................................................................................................... 20 3.2.6 应用层安全 .......................................................................................................................... 20 3.2.7 数据安全 .............................................................................................................................. 21 3.3.企业网安全架构模型的部署 ...................................................................................................... 21 3.3.1 网络以及网络边界的保护 .................................................................................................. 22 3.3.2网络系统安全防护 ............................................................................................................... 22 第4章企业网安全架构模型的仿真 4.1企业网受到外部攻击仿真实验及结果分析 .............................................................................. 24 4.2OPNET仿真软件............................................................................................................................. 24 4.3实验分析 ...................................................................................................................................... 35 第5章总结