KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q289856: User Name Mapping May Not Be Updated

Article: Q289856
Product(s): Microsoft Windows NT
Version(s): 2.0
Operating System(s): 
Keyword(s): kbtool w2000sfu kbUNIXService
Last Modified: 11-JUN-2002

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows Services for UNIX, version 2.0 
-------------------------------------------------------------------------------

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

SYMPTOMS
========

The User Name Mapping service that is used by Server for NFS may not be updated
after the default cache-update limit is reached and users that have been added
recently to the computer may not be able to access network file system (NFS)
services.

CAUSE
=====

This problem can occur because Server for NFS ignores the default cache-update
settings in the registry for updating the User Name Mapping service. The
following registry key holds the settings:

  HKEY_LOCAL_MACHINE\Software\Microsoft\Server For NFS Mapping\CurrentVersion

Registry Value: CacheRefresh
Data Type: DWORD
Range: 300 to 86,400 seconds (5 minutes to 24 hours)
Default: 1,800 seconds (30 minutes)

If you change this registry key, there is no effect upon the User Name Mapping
service because the settings are completely ignored.

RESOLUTION
==========

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.

To work around this problem, use either of the two methods:

- Restart the server.

- Stop and restart both Server for NFS and the User Name Mapping service:
  a. Start the Services for UNIX Administration tool. Right-click "Server for
     NFS", and then click Stop. When the service has stopped, click the start
     option from the same menu to start the service.

  b. Repeat the same process for the User Name Mapping service.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.

Additional query words: SFU

======================================================================
Keywords          : kbtool w2000sfu kbUNIXService 
Technology        : kbWinServiceUNIX200 kbWinServiceUNIXSearch
Version           : :2.0
Issue type        : kbbug
Solution Type     : kbnofix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.