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1、数学专业英语论文SecurityofComputerNetworkSystem---------------------------------------------------------------------------------------课程：数学专业英语10SecurityofComputerNetworkSystemAbstract:Thispaperdiscussedthesecureanddependableproblemaboutthecomputernetworksystem.Onso
2、measpects:theimportanceofnetworksecurity,basictheory,function,andthemethodofsolvingaproblem,etc.Goodviewsforsolvingtheproblemareputforward.Itstrengthenspeople’sconsciousnessonnetworksecurity.Keywords:ComputernetworkVirtualprivatenetworkEncryptiontechniquesFi
3、rewallIntroduction:Alongwiththecomputernetworktechnologydevelopment,thenetworksecurityandthereliabilityhavebecomethequestionofcommoninterestbyallusers.Thepeopleallhopedtheirownnetworksystemcanmovereliably,notexternalintruderdisturbanceanddestruction.Therefor
4、esolvesthenetworksecurityandthereliableproblemcarefully,isaguaranteethenetworknormaloperation’spremiseandsafeguard.First,theimportanceofthenetworksecurity.Withtheinformationizationdevelopingfasttoday,thecomputernetworkobtainedthewidespreadapplication,butalon
5、gwiththenetworkinformationtransmissioncapacitygrowingfaster,someorganizationsanddepartmentsbenefitthespeedupwiththeserviceoperationinthenetwork,while,thedatahasalsosufferedtoextentattackanddestruction.Theaggressormayintercepttheinformationinthenetwork,steals
6、theuser’spassword,thedatabaseinformation;alsomaytamperwiththedatabasecontent,theforgeuser’sstatus,deniesownsignature.Andwhatismore,theaggressormaydeletethedatabasecontent,thedestroynode,releasescomputervirusandsoon.Thiscausedatasecurityandownbenefithaverecei
7、vedtheseriousthreat.AccordingtoAmericanFBI(USFederalBureauofInvestigation)investigation,thenetworksecuritycreatestheeconomiclosssurpasses17,000,000,000dollarseveryyear.75%corporationreportfinancelossisbecausethecomputersystemsecurityproblemcreates.Morethan50
8、%safethreatcomefrominside.Butonly59%losscouldbepossibleestimate.InChina,theeconomiclossamountinviewoffinancialdomainandthebank,negotiablesecuritiescomputersystemsecurityproblemscreateshasreached
