VPN服务器的选型与配置
摘要：VPN（Virtual Private Network，虚拟专用网络）：利用两个具有VPN发起连接能力的设备（计算机或防火墙）通过Internet提供一种通过公用网络安全的对企业内部专用网络进行远程访问的连接方式；在隧道的发起端（即服务端），用户的私有数据通过封装和加密之后在Internet上传输，到了隧道的接收端（即客户端）；接收到的数据经过拆封和解密之后安全的到达用户端。VPN服务器有3个部分组成：客户机，传输介质和服务器。
Suqian xingxin network enterprise network planning and design
Abstract: Small and medium-sized enterprise network mainly includes the enterprise internal network building, is the enterprise internal computer nodes and the distribution of physical line connection and reasonable layout of the entire network, and construction of the portal websites, e-commerce platform.
With the fast development of computer network communication technology, the network has gradually entered all areas of society. Enterprise information network construction is inevitable road to deepen enterprise reform, which is the reform and development of enterprises, an effective way to improve their management level, as well as analysis of a company's prospects indicators. After entering the new century, most of China's SMEs to enter the information technology and office automation, semi-automatic or semi information. Network can improve the efficiency and quality of work across the enterprise, increased corporate marketing and increase their business volume of business. Through the network, businesses can also be more convenient to view market information from around the world; and the outside world through a network link up, business managers can make the right decisions faster macro-control, in order to adapt to market changes. This allows companies to link with the world, greatly improving the capacity and efficiency of enterprise information collected.
Keywords: Network planning, Three levels routing switch, Quality of Service
目 录
一、绪论.......................................................................2
(一)课题背景 2
二、需求分析 3
（一）VPN优越性 3
（二）系统简介 3
三、系统实施 3
（一）Windows Server 2003 VPN 服务器的选型与配置.........................3
（二）Windows Server 2008 VPN 服务器的选型与配置........................20
（三）Centos6.5 Linux VPN 服务器的选型与配置............................36
四、结论 42
五、参考文献 43
参考文献
[1] 库罗斯.计算机网络[M].北京：机械工业出版社，2014.
[2] 梁广明、王隆杰.思科网络实验室路由、交换实验指南[M].北京：电子工业出版社，2013.
[3] 杭州华三通信技术有限公司.路由基础知识[M].人民邮电出版社，2010.
[4] 回金强.企业网络规划建设应用研究[J].大连：大连海事大学，2013.
[5] 回金强.企业网络规划建设应用研究[D].大连：大连海事大学，2013.
[6]孙小俊.如何打造安全的企业网络管理系统[J].新观察，2013.
[7]叶 隽.中小企业网络管理系统的构建[J].信 息 通信，2013.
[8]李海涛.中小企业的网络管理建设[J].无线互联科技，2013.
[9]王彦祥.中小企业网络管理系统的构建[J].知识经济，2011.
[10]赵 晖.中小企业网络安全与网络管理[J].信息技术，2012.
[11]赵素卿.中小企业内部网络管理的探讨[J].经营与管 理，2013.
http://www.bysj360.com/cat.asp?id=27
http://www.bysj360.com/cat.asp?id=28
http://www.bysj360.com/cat.asp?id=22
