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Q216906: IIS 5.0 and Native Windows 2000 Active Directory Mapping

Article: Q216906
Product(s): Internet Information Server
Version(s): 5.0
Operating System(s): 
Keyword(s): 
Last Modified: 15-AUG-2002

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The information in this article applies to:

- Microsoft Internet Information Services version 5.0 
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SUMMARY
=======

Internet Information Services (IIS) version 5.0 allows administrators to "map" a
client authentication certificate to a Windows 2000 user account. There are two
possible ways to do this:

- IIS Certificate Mapping

- Native Windows 2000 Active Directory Mapping

IIS Certificate Mapping

IIS Certificate Mapping is the same mapping that is found in IIS 4.0 and is
available for backward compatibility only. It has the following attributes:

- You can set new rules on each virtual server.

- It handles one-to-one mapping (a certificate blob equals one user account).

- It handles many-to-one mapping (a wildcard rule maps to a user account).

- It does not scale as well as Active Directory mapping.

- The administrator must enter the username and password of the account logging
  on.

- By default, the account used must have the log on locally privilege.

- The request may be delegated to another computer if the account is configured
  for delegation.

Native Windows 2000 Active Directory Mapping

Active Directory Mapping is a new kind of client certificate mapping available
only in Windows 2000. It has the following attributes:

- It scales very well.

- The administrator does not need to know the username or password.

- The user account may not be delegated to another computer even if the account
  is configured for delegation.

Note: The IIS certificate mapping that is included in IIS 5.0 is for backward
compatibility only. This feature may be removed in favor of the Active Directory
mapping in a future release of the Web services.

MORE INFORMATION
================

For additional information, click the article numbers below to view the articles
in the Microsoft Knowledge Base:

  Q272175 HOW TO: Configure Active Directory Certificate Mapping

  Q313070 HOW TO: Configure Client Certificate Mappings in Internet Information
  Services (IIS) 5.0

Additional query words:

======================================================================
Keywords          :  
Technology        : kbiisSearch kbiis500
Version           : :5.0
Issue type        : kbinfo

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