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Q252941: No "NTLM" Authentication Method Available in IIS 5.0

Article: Q252941
Product(s): Internet Information Server
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): kbOSWin2000 kbDSupport kbiis500
Last Modified: 04-AUG-2000

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The information in this article applies to:

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

In Internet Information Server (IIS) 4.0, "Windows NT Challenge/Response" (also
known as NTLM) was listed as an authentication method on the Directory Security
tab of a Web site. In IIS 5.0, however, this authentication method is not
listed.

CAUSE
=====

In IIS 5.0, NTLM is referred to instead as "Integrated Windows authentication".

RESOLUTION
==========

Use "Integrated Windows authentication" as you would have used NTLM in IIS 4.0.

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

For more information, refer to the following:

- In the IIS 5 Documentation, refer to the following topic:

 Administration
   Server Administration
     Security
       Authentication
         About Authentication

- IIS 4.0 and 5.0 Authentication Methods Chart
  (http://www.microsoft.com/technet/iis/authmeth.asp)

Additional query words: iis 5 challenge-response Challenge\Response nt lanman akz

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Keywords          : kbOSWin2000 kbDSupport kbiis500 
Technology        : kbiisSearch kbiis500
Version           : winnt:5.0
Issue type        : kbprb
Solution Type     : kbpending

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