Windows平臺下基于Snort的入侵防御系統(tǒng)的研究與實現(xiàn).pdf

1、哈爾濱理工大學(xué)碩士學(xué)位論文Windows平臺下基于Snt的入侵防御系統(tǒng)的研究與實現(xiàn)姓名：王玲申請學(xué)位級別：碩士專業(yè)：@指導(dǎo)教師：喬佩利201103哈爾濱理T大學(xué)T學(xué)碩Ij學(xué)位論文ResearchandImplementationofIPSBasedonSnortinWindowsSystemAbstractInthedevelopmentofthecomputernetworktechnologyprocesswiththeincrea

2、seofthenetusersandhigh—speeddataexchangeandthemassdatainnetwork，theproblemofnetworksecurityhasattackmoreandmoreattentionDuetotheenhancementoftheattackingtechnologyandthediversificationoftheattackmeans，thetraditionalstati

3、cnetworksecuritytechnologyhasnotbeenabletoprotectusers，peopleurgentlyneedsadynamicdepthprotectionsystem，therefore，thispaperestablishadynamicdefensesystemwhichbasedontheimprovedIDSFirstlythispaperimprovesthedetectionalgor

4、ithmofSnortMatchingalgorithmwastemoretimeinIDSandtherearetwokindsofmatchingalgorithm，eachalgorithmhasitsadvantagesanddisadvantages，Peopleputforwardvariousimprovedalgorithmtoimprovethematchingalgorithminthelong—termresear

5、ch，thispaperimprovetheBMalgorithmbycomparingthenextcharacterandjumpingwithtwocharactersasaunit，therefore，improvetheSnortthroughincreasetheslidingdistanceandreducethematchingtimesThispaperestablishsadynamicintrusiondefens

6、esystemwhichbaseontheimprovedSnortandusethelinkagetechnologyThissystemworkonWindowssystemandmakeafulluseoftheSnortopensourcetoexpenditspluginsThroughaddingkeywordalert——ifwatthelinkageplugwhichwillsendinformationtofirewa

7、llthissystemcompletethelinkagebetweenintrusiondetectionsystemandthefirewallAtthefirewaIlmodule，thissystemusetheIPSecfilterswhichbuildintheWindowssystem，thefilterwillblocktheIPaddressontheparticularportforacertaintimeacco

8、rdingtothemessage，thereforethehostsystemwillbeprotectedeffectivelyInaddition，therehasrarelylingkagesystembasedonwindowssystembecauseofsometechnicallimition，thissystemprovidesanewwaytoestablishthelinkagesystemandwecanuset