Course 2824B: Implementing Microsoft internet security and acceleration server 2004 - Module 9

Module 9: Implementingcaching. This module explains how ISA Server can cache content that clients request from the Internet to provide a quicker response to the client. This module discusses how to configure caching for maximum efficiency.
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Course 2824B: Implementing Microsoft internet security and acceleration server 2004 - Module 9 Module 9:ImplementingCach ingOverview Caching Overview Configuring General Cache Properties Configuring Cache Rules Configuring Content Download JobsLesson: Caching Overview What Is Caching? How Caching Works for Requests for New Objects How Caching Works for Requests for Cached Objects How Content Download Jobs Work How Caching Is Implemented in ISA Server 2004 Web Proxy Chaining and CachingWhat Is Caching? ISA Server caching stores a copy of requested Web content in the server memory or on the hard disk ISA Server caching provides: Improved performance — information is stored on the computer running ISA Server Reduced bandwidth usage — no additional Internet network traffic ISA Server caching scenarios include: Forward caching — Internet Web servers Reverse caching — internal Web serversHow Caching Works for Requests forNew Objects Serv Server er hard RAM disk 6 www.contoso. com 4 2 3 1 5 ISA Serve r http://www.contoso .comHow Caching Works for Requests forCached Objects Serv Server er hard RAM disk www.contoso. com 2 1 3 ISA Serve r http://www.contoso .comHow Content Download Jobs Work Serv Server er hard RAM disk www.contoso. 4 com 1 2 3 5 ISA Serve r http://www.contoso .comHow Caching Is Implemented inISAServer 2004 ISA Server caching optimizes Web caching performance by: Using RAM and disk caching Maintaining the RAM cache in physical memory Maintaining a directory of cached items Using a single cache file Providing quick recovery Using efficient cache updates Providing automatic cleanupWeb Proxy Chaining and Caching 4 Internet 2 3 5Branch Office Branch Office Head Office 1 6Lesson: Configuring General CacheProperties Caching Configuration Components How to Enable Caching and Configure Cache Drives How to Configure Cache SettingsCaching Configuration Components Component Explanation Define cache Enables caching by configuring a cache drive for storing the drives cached content Configure Modifies the default TTL and caching types of cached content settings Configure Enables unique caching policies caching rules for specific Web content Configure Enables the prefetch of content content before clients request the download jobs contentHow to Enable Caching and ConfigureCache Drives Caching is disabled by default on ISA Server 2004. When you enable caching, ISA Server creates a file with an initial size equal to the size you chose for the maximum cache size on the hard disk How to Configure Cache Settings Configure Configure caching of negative objects caching with undefined TTL Configure responseto request for unavailable Web site Configure memory used for cachingPractice: Configuring General CacheProperties Enabling Web Caching on ISA Server Configuring Web caching on ISA Server Den-ISA-01 Internet Den-DC-01Lesson: Configuring Cache Rules What Are Cache Rules? How to Create a Cache Rule Managing Cache RulesWhat Are Cache Rules? ...