Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

How to configure ISA Server 2004, ISA Server 2006 Windows Essential Business Server 2008 to skip name resolution in a Web proxy chaining configuration


View products that this article applies to.

Introduction

In Microsoft Internet Security and Acceleration (ISA) Server 2004, ISA Server 2006, or Windows Essential Business Server 2008 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 or Windows Essential Business Server 2008 to skip name resolution a Web proxy chaining configuration.

↑ Back to the top


More information

You can configure ISA Server or Windows Essential Business Server 2008 to skip name resolution by setting the SkipNameResolutionForAccessAndRoutingRules COM property to TRUE. To do this, follow these steps:
  1. Copy the following Visual Basic script to a text editor, such as Notepad. Then save the file to your local ISA Server-based or Windows Essential Business Server 2008 computer by using a .vbs file name extension.
    ' Create the root object
    Dim root  ' The FPCLib.FPC root object
    Set root = CreateObject("FPC.Root")
    
    ' 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
    
  2. Click Start, click Run, type cmd, and then click OK.
  3. At the command prompt, change to the folder that contains the .vbs file that you saved in step 1, type cscript Your_ISA_Script.vbs, and then press ENTER.

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

↑ Back to the top


References

For additional information about the SkipNameResolutionForAccessAndRoutingRules COM property, visit the following Microsoft Web site:

↑ Back to the top


Keywords: KB891244, kbprb, kbtshoot, kbhowto

↑ Back to the top

Article Info
Article ID : 891244
Revision : 3
Created on : 11/17/2008
Published on : 11/17/2008
Exists online : False
Views : 534