DOCUMENT:Q168908  11-JUN-2002  [iis]
TITLE   :How to Authenticate a User Against All Trusting Domains
PRODUCT :Internet Information Server
PROD/VER::2.0,3.0,4.0,5.0
OPER/SYS:
KEYWORDS:kbiis300 kbiis400 kbiis500

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The information in this article applies to:

 - Microsoft Internet Information Server versions 2.0, 3.0, 4.0, 5.0 
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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

   Q256986 Description of the Microsoft Windows Registry

SUMMARY
=======

By default, Internet Information Server (IIS) validates an unqualified user
logon ID against either the local computer's user database or the domain which
the server is a member of. This article describes how to configure IIS to
validate the unqualified user logon against all trusting domains and the user
accounts database.

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

To configure IIS to validate the unqualified user logon against all trusting
domains and the user accounts database, use the appropriate method:

IIS 4.0 and IIS 5.0
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Method 1

1. Start the IIS Microsoft Management Console (MMC).

2. Right-click the desired Web site, and then click Properties.

3. On the Directory Security tab, in the "Anonymous Access and Authentication
   Control" section, cclick Edit.

4. Click Edit for Default domain for basic authentication.

5. In the Domain Name text box, type a single backslash "\" (without the
   quotation marks).

6. Click OK three times to return to the Internet Service Manager MMC.

Method 2:

You can also set the DefaultLogonDomain parameter for IIS 4.0. This parameter has
been moved to the metabase for IIS version 4.0. To do this, run Adsutil.vbs from
a command prompt, using the appropriate syntax below (depending on whether you
want to set DefaultLogonDomain for all FTP sites, only the default FTP site, or
other sites):

 - To set DefaultLogonDomain for all FTP sites, run the following command:

   adsutil set msftpsvc/DefaultLogonDomain "DomainName

 - To set DefaultLogonDomain for only the default FTP site, run the following
   command:

   adsutil set msftpsvc/1/DefaultLogonDomain "DomainName

 - To set DefaultLogonDomain for any other site, use the same syntax as the
   default FTP site above, but change the "1" parameter to the appropriate
   service number.

For additional information, please see the following article in the Microsoft
Knowledge Base:

   Q184319 FTP Service's DefaultLogonDomain Not Available in MMC

IIS 2.0 and 3.0
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WARNING: If you use Registry Editor incorrectly, you may cause serious problems
that may require you to reinstall your operating system. Microsoft cannot
guarantee that you can solve problems that result from using Registry Editor
incorrectly. Use Registry Editor at your own risk.

1. Run Registry Editor (Regedt32.exe).

2. Go to the following key in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<ServiceName>\Parameters

where <ServiceName> is:

      MSFTPSVCFTP Service
      GOPHERSVCgopher Service
      W3SVC        WWW Service

3. On the Edit menu, click Add Value, and then use the following entry:

      Value Name: DefaultLogonDomain
      Data Type:  REG_SZ
      Value:      Domain Name

4. Quit Registry Editor, and then restart the computer for the change to take
   effect.


Additional query words:

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Keywords          : kbiis300 kbiis400 kbiis500 
Technology        : kbiisSearch kbiis500 kbiis400 kbiis300 kbiis200
Version           : :2.0,3.0,4.0,5.0
Issue type        : kbhowto

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Copyright Microsoft Corporation 2002.