Microsoft KB Archive/226107

= Description of the Registry Entries for the Telnet Server Service =

Article ID: 226107

Article Last Modified on 2/25/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server

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This article was previously published under Q226107



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:

256986 Description of the Microsoft Windows Registry



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:

225233 Description of the Telnet Server Service Administration Tool



MORE INFORMATION
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.

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 -- 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.

Keywords: kbenv kbinfo KB226107

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