IIS体系结构简介

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1、xxxTanjonIntroductiontoIISArchitecture2012-09-20IntroductionInternetInformationServices(IIS)7andaboveprovidesarequest-processingarchitecturethatincludes:ComponentsinIISModulesinIISApplicationPoolsinIISHTTPRequestProcessinginIIS1ComponentsinIISComponentsinIISProtocolListeners

2、:HypertextTransferProtocolStack(HTTP.sys)WorldWideWebPublishingService(WWWservice)WindowsProcessActivationService(WAS)ProtocolStack(HTTP.sys)Requestpre-processingandsecurityfiltering.HTTP.sysprovidesthefollowingbenefits:Kernel-modecaching.Requestsforcachedresponsesareservedw

3、ithoutswitchingtousermode.Kernel-moderequestqueuing.Requestscauselessoverheadincontextswitchingbecausethekernelforwardsrequestsdirectlytothecorrectworkerprocess.Ifnoworkerprocessisavailabletoacceptarequest,thekernel-moderequestqueueholdstherequestuntilaworkerprocesspicksitup

4、.WWWserviceHTTPadministrationandconfigurationInIIS6.0,WWWServicemanagesthefollowingmainareasinIIS:ProcessmanagementPerformancemonitoringWindowsProcessActivationService(WAS)ThefollowinglistdescribesthetypeofinformationthatWASreadsfromconfiguration:Globalconfigurationinformati

5、onProtocolconfigurationinformationforbothHTTPandnon-HTTPprotocolsApplicationpoolconfiguration,suchastheprocessaccountinformationSiteconfiguration,suchasbindingsandapplicationsApplicationconfiguration,suchastheenabledprotocolsandtheapplicationpoolstowhichtheapplicationsbelong

6、ModulesinIIS2ModulesinIISNativeModulesManagedModulesYoucanusecustommodulestoreplaceexistingmodulesortointroducenewfeatures.ThenewarchitectureprovidesthefollowingadvantagesoverpreviousversionsofIIS:Youcancontrolwhichmodulesyouwantontheserver.Youcancustomizeaservertoaspecificr

7、oleinyourenvironment.NativeModulesHTTPModulesNativeModulesSecurityModulesNativeModulesContentModulesNativeModulesCompressionModulesTwomodulesinIISperformcompressionintherequest-processingpipeline.NativeModulesCachingModulesNativeModulesLoggingandDiagnosticsModulesNativeModul

8、esManagedSupportModules3ManagedModulesManagedModules……ApplicationPoolsinIIS