Microsoft KB Archive/891244

= How to configure Internet Security and Acceleration Server 2004 to skip name resolution in a Web proxy chaining configuration =

Article ID: 891244

Article Last Modified on 2/8/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2004 Standard Edition

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INTRODUCTION
In Microsoft Internet Security and Acceleration (ISA) Server 2004, you may experience poor performance when the downstream proxy cannot resolve the Internet names of your requests.

Note The downstream proxy is the first proxy in a Web proxy chaining configuration.

This article discusses how to configure ISA Server to skip name resolution a Web proxy chaining configuration.



MORE INFORMATION
You can configure ISA Server to skip name resolution by setting the SkipNameResolutionForAccessAndRoutingRules COM property to TRUE. To do this, follow these steps:   Copy the following Visual Basic script to a text editor, such as Notepad. Then save the file to your local ISA Server-based computer by using a .vbs file name extension. ' Create the root object Dim root ' The FPCLib.FPC root object Set root = CreateObject(&quot;FPC.Root&quot;)

' Declare the other objects needed. Dim isaArray    ' An FPCArray object Dim webProxy    ' An FPCWebProxy object Dim restartMask ' A 32-bit bitmask of type FpcServices

' Get references to the array object ' and the Web proxy object. Set isaArray = root.GetContainingArray set webProxy = isaArray.ArrayPolicy.WebProxy

' Configure the Web proxy to skip name resolution ' while checking access and routing rules and save ' the new configuration. webProxy.SkipNameResolutionForAccessAndRoutingRules = True restartMask = webProxy.GetServiceRestartMask webProxy.Save

' Restart the firewall service so that ' the change will take effect. isaArray.RestartServices restartMask  Click Start, click Run, type cmd, and then click OK. At the command prompt, change to the folder that contains the .vbs file that you saved in step 1, type cscript .vbs, and then press ENTER.

Note is a placeholder for the name of the file that you saved in step 1.

