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1、数学专业英语论文SecurityofComputerNetworkSystem---------------------------------------------------------------------------------------课程：数学专业英语SecurityofComputerNetworkSystemAbstract:Thispaperdiscussedthesecureanddependableproblemaboutthecomputernetworksystem.Onsomeaspects:theimportanceofnetworksecuri
2、ty,basictheory,function,andthemethodofsolvinga10problem,etc.Goodviewsforsolvingtheproblemareputforward.Itstrengthenspeople’sconsciousnessonnetworksecurity.Keywords:ComputernetworkVirtualprivatenetworkEncryptiontechniquesFirewallIntroduction:Alongwiththecomputernetworktechnologydevelopment,then
3、etworksecurityandthereliabilityhavebecomethequestionofcommoninterestbyallusers.Thepeopleallhopedtheirownnetworksystemcanmovereliably,notexternalintruderdisturbanceanddestruction.Thereforesolvesthenetworksecurityandthereliableproblemcarefully,isaguaranteethenetworknormaloperation’spremiseandsaf
4、eguard.First,theimportanceofthenetworksecurity.Withtheinformationizationdevelopingfasttoday,thecomputernetworkobtainedthewidespreadapplication,butalongwiththenetworkinformationtransmissioncapacitygrowingfaster,someorganizationsanddepartmentsbenefitthespeedupwiththeserviceoperationinthenetwork,
5、while,thedatahasalsosufferedtoextentattackanddestruction.Theaggressormayintercepttheinformationinthenetwork,stealstheuser’spassword,thedatabaseinformation;alsomaytamperwiththedatabasecontent,theforgeuser’sstatus,deniesownsignature.Andwhatismore,theaggressormaydeletethedatabasecontent,thedestro
6、ynode,releasescomputervirusandsoon.Thiscausedatasecurityandownbenefithavereceivedtheseriousthreat.AccordingtoAmericanFBI(USFederalBureauofInvestigation)investigation,thenetworksecuritycreatestheeconomiclosssurpasses17,000,000,000dollarseveryyear.75%corporationreportfinancelossisbecausethecompu
7、tersystemsecurityproblemcreates.Morethan50%safethreatcomefrominside.Butonly59%losscouldbepossibleestimate.InChina,theeconomiclossamountinviewoffinancialdomainandthebank,negotiablesecuritiescomputersystemsecurityproblemscreateshasreached
