摘要网络安全问题一直是近年来社会乃至全世界十分关注的重要性问题，网络关乎着我们的生活，政治，经济等多个方面，致力解决网络安全问题以及给出行之有效的安全策略是网络安全领域的一大目标。本论文简述了课题的开发背景，描述和定义了网络安全的内容和范围，着重于根据网络安全问题频发的不同角度分析其原因，包活网络安全现状中出现的信息篡改、网络攻击、病毒传播或交易威胁等，从具体实例出发，详细描述了网络安全事件出现的问题，原因及后果。针对不同的网络安全问题，提出了可预防和解决网络安全问题的技术策略和管理方案，针对技术应用过程做了详细阐述。同时，搭建了网络安全仿真实验环境，完成了ARP欺骗攻击与防御测试、SQL注入攻击与防御测试以及防火墙配置之端口安全测试，将网络安全问题表现的具像化。最终达到为净化网络安全环境，提高网络安全防护提供参考。关键词：网络安全问题，网络安全策略,攻击技术,防御技术AbstractNetworksecurityproblemhasbeeninrecentyearsthesocietyandeventheworldisveryconcernedabouttheimportanceoftheproblem,thenetworkisrelatedtoourlife,politics,economyandotheraspects,tosolvethenetworksecurityproblemandgiveeffectivesecuritystrategyisamajorgoalofthenetworksecurityfield.Thispaperintroducesthedevelopmentbackgroundofthetopic,describesanddefinesthecontentandscopeofnetworksecurity,focusingontheanalysisofthedifferentaspectsofnetworksecuritybasedonfrequentitsreason,packagelivenetworksecuritystatusinformationinthecomplexchange,networkattack,thespreadofthevirus,orthethreatoftrading,startingfromtheconcreteexamples,describesindetailthenetworksecurityproblems,causesandconsequences.Inviewofdifferentnetworksecurityproblems,thispaperputsforwardthetechnicalstrategyandmanagementschemethatcanpreventandsolvenetworksecurityproblems,andexpoundstheapplicationprocessoftechnologyindetail.Atthesametime,thenetworksecuritysimulationexperimentenvironmentissetup,andtheARPspoofingattackanddefensetest,SQLinjectionattackanddefensetestandfirewallconfigurationportsecuritytestarecompleted,sothatthenetworksecurityproblemareembodied.Finallytopurifythenetworksecurityenvironment,improvenetworksecurityprotectiontoprovidereference.Keywords:networksecurityproblem,networksecuritystrategy,attacktechnology,defensetechnology目录第1章绪论...............................................................................................11.1导论...............................................................................................11.1.1选题背景.............................................................................11.1.2选题意义.............................................................................21.1.3课题研究内容、要求及目标.............................................31.1.4本章小节................................................................................................................4第2章网络安全现状2.1计算机网络安全概述...................................................................52.1.1计算机网络安全的含义.....................................................52.2网络安全现状..............................................................................52.2.1政府网站安全情况不容乐观................................................................................52.2.2遭受境外网络攻击持续增加................................................................................62.2.3网上银行面临的钓鱼威胁愈发严重....................................................................62.2.4木马和僵尸网络活动愈发猖狂..................
