Description of the Registry Entries for the Telnet Server Service

ID: Q226107


The information in this article applies to:
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Server

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

This article describes the registry entries associated with the Windows 2000 Telnet Server service.

For information about how to use the Telnet Server service, please see the following article in the Microsoft Knowledge Base:

Q225233 Description of the Telnet Server Service Administration Tool


MORE INFORMATION

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. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

The Telnet Server service values are located in the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\TelnetServer\1.0
The possible Telnet Server registry values and data types include:

Name                   Data type         Values
--------------------------------------------------------------------------
AllowTrustedDomain     REG_DWORD         0x00: Prevent users from logging
                                         in using an account from a 
                                         trusted domain.

                                         0x01: Allow users from a trusted
                                         domain to logon. (default)
 
AltKeyMapping          REG_DWORD         0x00: Press CTRL+A.
                                         This key combination emulates
                                         the ALT key. This enables you to
                                         send an ALT combination to
                                         programs running on SFU Telnet 
                                         servers.

                                         0x19: Press CTRL+Z.
                                         This key combination emulates
                                         the ALT key. This enables you to
                                         send an ALT combination to
                                         programs running on SFU Telnet 
                                         servers.
   
DefaultDomain          REG_EXPAND_SZ     Uses default Windows domain for 
                                         login authentication.
  
DefaultShell           REG_EXPAND_SZ     Defines the full path of
                                         the shell or command
                                         interpreter that runs 
                                         when a Telnet user logs 
                                         on. The default is Windows NT 
                                         Command Prompt (Cmd.exe), but can
                                         be set to a UNIX shell.

LoginScript            REG_EXPAND_SZ     Sets the full path of a batch
                                         file when a Telnet user logs on. 
                                         This is similar to a global 
                                         .cshrc file or profile in UNIX.

MaxConnections         REG_DWORD         Applies only if you 
                                         purchase a license through
                                         Services for UNIX. In Windows
                                         2000, the Telnet Server service
                                         has a hard coded limit of two
                                         simultaneous connections. 

MaxFailedLogins        REG_DWORD         Determines the number of 
                                         unsuccessful logons before a user
                                         is disconnected. (default is 3)

NTLM                   REG_DWORD         0x00: Disables Windows NT
                                         LAN Manager (NTLM)
                                         authentication.

                                         0x01: Attempts NTLM first, and
                                         then uses clear text
                                         authentication.

                                         0x02: Uses NTLM authentication
                                         only.

TelnetPort             REG_DWORD         Defines the Transmission Control
                                         Protocol (TCP) port for Telnet
                                         connections. (default is 23)
  
TermCap                REG_EXPAND_SZ     Sets the full path to the 
                                         "terminal capabilities" file. 
                                         This file is similar to a UNIX 
                                         file, which is used to define 
                                         standard layouts and key mappings
                                         for common emulation types (for 
                                         example, VT52, VT100, and ANSI). 

NumThreadsPerProcessor REG_EXPAND_SZ     Determines the number of threads 
                                         assigned to each processor for 
                                         execution. The default value is
                                         set to 10. The minimum value 
                                         is 2. 
  
NOTE: The NumThreadsPerProcessor value is located in the following registry key:
HKEY_LOCAL_MACHINE\Software\Microsoft\TelnetServer\1.0\Performance
If you change any of these registry values, you have to stop and then restart the Telnet Server service.

Additional query words:

Keywords : kbenv
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbinfo


Last Reviewed: December 29, 1999
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