【最新版】基于旁路的Web访问监控系统的设计与实现毕业设计

论文题目：基于旁路的Web访问监控系统的设计与实现

学生：

指导教师：

摘要

在实验室或者办公室，管理员总是希望学生或员工可以专心自己的任务，而不去浏览观看与学习或工作无关的网页或网站。因而，当学生或员工输入无关网址时，管理员的服务器可以抢在其打开网页前与其进行“握手”并发送管理员提前准备好的页面，从而阻止了其正常访问，提高了学习工作效率。

首先介绍了不良网站对于正常网络的入侵以及危害，通过把网卡设置为混杂模式实现了捕获数据包的操作，从而有效的对于整个网络进行监听，通过IP包过滤模块把中除GET包和POST包过滤掉，提取出URL地址，然后与事先准备的数据库黑名单网址进行匹配，来判断出哪些是对工作或学习无关的网址，进而拦截其访问，达到了净化网络环境的目的。

最后，针对该系统实施了详细的性能和功能的测试，使功能完整，且系统的性能有一定的优化。

关键词：混杂模式捕获数据包网页

Title: Base on the bypass web access montitoring system deisign and implementation Name:

Supervisor:

Abstract

In the laboratory or office, administrators or employees can always expect students to concentrate on their own tasks, rather than to browse watch and study or work unrelated pages or sites. Thus, when students or staff independent of the input URL, the server administrator can grab it on the page in front of their " advance and send the administrator page, thus preventing its normal access, improve the learning efficiency.First introduced the bad sites for normal network intrusion and damage, the card is set by the operator to achieve a packet capture to promiscuous mode, so as to effectively monitor the entire network through IP packet filtering module in addition to the GET and POST package packet filter to extract the URL address, and then prepared a database with URL blacklist matching to determine which is unrelated to work or study site, thus blocking its access to the network environment to achieve the purpose of purification.Finally, a detailed embodiment of the system for testing the performance and functionality, so that the functional integrity and performance of the system with some optimization.

KEY WORDS: Library management system; Cache; efficient

1绪论 (1)

1.1课题背景 (5)

1.2国内外发展现状 (5)

1.3本文主要任务 (7)

1.4论文的组织结构 (7)

2.相关知识理论 (8)

2.1 OSI参考模型 (8)

2.2 TCPIP体系结构 (9)

2.3 OSI与TCPIP的比较 (10)

2.4 H议 (10)

2.5 IP协议 (12)

2.6数据捕获函数的一些函数 (13)

2.7本章小结 (15)

3.需求分析 (16)

3.1可行性分析 (16)

3.1.1技术可行性 (16)

3.1.2经济可行性 (16)

3.1.3社会可行性 (17)

3.2系统需求分析 (17)

3.2.1 功能需求 (17)

3.2.2 性能需求 (21)

3.2.3运行需求 (22)

3.2.4安全需求分析 (22)

4系统设计 (24)

4.1网络监听模块 (24)

4.2拦截策略控制模块.................................................................. 错误！未定义书签。

4.3 IP包分析模块......................................................................... 错误！未定义书签。

4.3.1IP包过滤模块............................................................... 错误！未定义书签。

4.3.2网址匹配模块 (26)

4.4网页拦截模块 (27)

4.5数据更新模块 (29)

4.6消息提示模块 (30)

5.系统测试 (32)

5.1系统开发环境 (32)

5.2系统测试 (32)