DOCUMENT:Q194633  19-SEP-1999  [sna]
TITLE   :How to Add Additional Host Security Domains
PRODUCT :Microsoft SNA Server
PROD/VER:WINDOWS:4.0 SP1
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft SNA Server, version 4.0 SP1 
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IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it if
a problem occurs. For information about how to do this, view the "Restoring
the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key"
Help topic in Regedt32.exe.

SUMMARY
=======

When you install the Windows NT Account Synchronization service (the service
must be installed on a Primary Domain Controller [PDC]), setup asks for a list
of domains in which the Host Account Caches are to exist. Usually, in a single
domain model, this will be the domain name of the domain in which the PDC is a
member. However, if installing in a Multi- Domain environment, such as a master
domain model, the Windows NT Account Synchronization service will be installed
on the PDC of the accounts domain and the Host Account Cache service(s) will
exist in each resource domain.

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

However, it may be necessary to add a resource domain to the list after the
service is configured and running. To add additional Host Security Domains
without removing and reinstalling the Windows NT Account Synchronization
service, you must modify the Windows NT Registry. To do this, perform the
following steps:

WARNING: Using Registry Editor incorrectly can cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee that
problems resulting from the incorrect use of Registry Editor can be solved. Use
Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.

1. Start Registry Editor (Regedt32.exe).

2. Locate the MdbDomains value under the following subkey in the registry:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ 
      SnaPMP\Parameters

   NOTE: The above registry key is one path; it has been wrapped for readability.

3. On the Edit menu, click Multi String, type on a new line the name of a single
   resource domain. Press Enter after each new entry, and then click OK.

4. Quit Registry Editor.

The Windows NT Account Synchronization service must be restarted for the change
to take effect.

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

   Q194695 How to Configure Host Security for a Multi-Domain Environment

Additional query words:

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Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ400SP1
Version           : WINDOWS:4.0 SP1
Issue type        : kbhowto

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