Assigning Logical Units to Specific Terminal Server Clients (328524)

MORE INFORMATION

SNA Server 4.0

A supported feature that modifies the product's default behavior is now available from Microsoft, but it is only intended to modify the behavior that this article describes. Apply it only to systems that specifically require it. This feature may receive additional testing. Therefore, if the system is not severely affected by the lack of this feature, we recommend that you wait for the next Microsoft SNA Server version 4.0 service pack that contains this feature.

To obtain this feature immediately, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date        Time   Version   Size     File name
   --------------------------------------------------
   30-Oct-2002 19:00 4.0.0.606   60,800  Dmodappc.dll
   30-Oct-2002 19:00 4.0.0.606   51,952  Snadmod.dll
   30-Oct-2002 19:00 4.0.0.606  198,240  Snakrnl.dll
   30-Oct-2002 19:00 4.0.0.606   53,088  Snands32.dll
   30-Oct-2002 19:00 4.0.0.606   93,952  Wappc32.dll
   30-Oct-2002 19:00 4.0.0.606  104,336  Snabase.exe

				

NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.

Host Integration Server 2000

Service pack information

This feature is available in the latest service pack for Microsoft Host Integration Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Hotfix information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version      Size    File name
   -----------------------------------------------------
   15-Oct-2002  11:01  5.0.0.900    65,808  Dmodappc.dll     
   15-Oct-2002  11:00  5.0.0.900    61,712  Snadmod.dll      
   15-Oct-2002  11:00  5.0.0.900   229,648  Snakrnl.dll 

				

NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.


Using the SNA Manager Assign workstation to LU feature, the administrator can restrict access to an LU to SNA Server and Host Integration Server 2000 clients with a specified workstation name, IP address, or MAC address. When an SNA Server or Host Integration Server 2000 client connects to Host Integration Server, the client sends to the server the name of the computer on which the SNA Server or Host Integration Server 2000 Client is running.

If the client is running in a Terminal Server session, the client sends the name of the Terminal Server, instead of the name of the workstation that is running the Terminal Server client. Therefore, it is not possible to restrict an LU to specific Terminal Server clients or devices.

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 restrict LU access to Terminal Server clients with specified names, install the hotfix mentioned earlier, and then follow these steps to add the registry key:

1. Start Registry Editor.
2. Locate and then click the following key in the registry:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SnaBase\Parameters

3. On the Edit menu, click Add Value, and then add the following registry value:

   Value name: AssignLUtoTSClient
   Data type: REG_DWORD
   Radix: Hexadecimal
   Value data: 1

4. Quit Registry Editor.

After you apply the fix and add this registry value, the SNA Client determines whether it is running under a Terminal session; if so, it will send Host Integration Server the name of the Terminal Server Client workstation, instead of the name of the Terminal Server itself.

Be aware of the following considerations:

• Disconnected terminal server sessions are not supported in this fix. If you establish a Terminal server session, disconnect from Terminal Server, and then reconnect from another workstation. The workstation name that is sent to Host Integration Server will stay the same as the first one. Users must log off the terminal server session, instead of disconnecting.
• The fix applies to all users (without exception) who connect to the Terminal Server and are running the End User client.