基于局域网的数据包的截获与分析3.0

沈阳理工大学学士学位论文I摘要目前，社会经济的迅速发展和科学技术的全面进步，计算机事业的飞速发展，以计算机与通信技术为基础的信息系统正处于蓬勃发展的时期。随着经济文化水平的显著提高，人们对生活质量以及工作环境的要求也越来越高。信息作为现代社会中赖以生存的精神食粮，越来越受到重视，大量的信息不断涌现在社会的各个角落，无论是生活还是工作，信息作为一项重要的财富，使得有效的安全性成为一种必须。因此，由各种信息的安全问题也就顺理成章的提上了日程[1]。随着网络的飞速发展，信息安全逐渐成为一个潜在的巨大问题。信息安全性是一个涉及面很广泛的问题。伴随着各种信息被盗的问题，对安全性的需求也在急切的提高。数据包的监听与分析，可以为防火墙和杀毒软件提供网络信息的基本数据。作内容如下：设计并实现一个局域网监控系统，包括客户端和服务器端。能将进出指定系统的数据包进行截获与分析。关键词局域网监控；数据包截获；数据包分析；数据库建立沈阳理工大学学士学位论文IIAbstractAspresent,socialeconomy’srapidlyexpandandscience’sandtechnology’scomprehensiveprogress,thecomputerenterprise'sswiftdevelopment,isbeinginthevigorousdevelopmenttakethecomputerandthecommunicationasthefoundationinformationsystemthetime.Alongwitheconomiccivilizationlevelremarkableenhancement,thepeoplearealsogettinghigherandhighertothequalityoflifeaswellasworkingconditions'request.Informationasmodernsocietyinlivelihoodspiritualfood,receivesmoreandmoretakesseriously,themassiveinformationemergeunceasinglyinsociety'seachcorner,regardlessofbeingthelifeorworks,theinformationtakesimportantwealth,enablestheeffectivesecuritytobecomeonekindto.Therefore,alsoonlogicalraisedprogram[1].Alongwiththenetworkswiftdevelopment,theinformationsecuritybecomesalatenthugequestiongradually.Theinformationsecurityisanaffectedareaverywidespreadquestion.Isfollowingeachkindofinformationthequestionwhichrobs,tosecuredemandalsoinanxiousenhancement.Datapacket'smonitorandtheanalysis,mayandkillthepoisonoussoftwareforthefirewalltoprovidethenetworkinformationthemasterdata.Makethecontenttobeasfollow:Designsandrealizesalocalareanetworksupervisorysystem,includingclientsideandserverend.Canpassinandoutdesignatedsystem'sdatapackettocarryontheinterceptionandtheanalysis.Keywords:LANMonitoring，Datapacketintercepts，Datapacketanalyzes，Createdatabase沈阳理工大学学士学位论文III目录1绪论..................................................................................................................................11.1选题背景................................................................................................................11.2研究的目的和意义................................................................................................11.3系统开发的目标....................................................................................................11.4系统的开发方法....................................................................................................21.5发展现状................................................................................................................22关键技术..........................................................................................................................32.1网络通信原理及协议...........................................................................................32.2WINSOCK2原始套接字技术..............................................................................42.3数据库技术............................................................................................................52.4系统的运行环境....................................................................................................63系统分析...........................................................................................................................73.1可行性分析............................................................................................................73.2系统操作流程图....................................................................................................73.3需求分析...............................................................................................................83.4局域网监控系统E-R图.......................................................................................94总体设计..........................................................................................................................94.1总体功能图...........................................................................................................94.2系统流程图.........................................................................................................105详细设计........................................................................................................................125.1数据库的物理结构.............................................................................................125.2系统界面设计.....................................................................................................125.3数据包截获的设计.............................................................................................135.4数据分析功能设计.............................................................................................135.5主机查询功能设计.............................................................................................146编码与实现....................................................................................................................156.1数据库连接的实现..............................................................................................156.2系统功能的实现..................................................................................................166.2.1登陆界面实现.......................