JSI Tip 7142. Registry entries for the Telnet Server service.

The Windows 2000 Telnet Server service can be configured by modifying the registry values at
HKEY_LOCAL_MACHINE\Software\Microsoft\TelnetServer\1.0:

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

                                         0x01: Allow logging in with a trusted
                                         domain account (default)
 
AltKeyMapping          REG_DWORD         0x00: Press CTRL+A
                                         to sent ALT key combinations
                                         to programs running on SFU Telnet 
                                         servers.

                                         0x19: Press CTRL+Z
                                         to sent ALT key combinations
                                         to programs running on SFU Telnet 
                                         servers.
   
DefaultDomain          REG_EXPAND_SZ     Use the default Windows domain for 
                                         login authentication.
  
DefaultShell           REG_EXPAND_SZ     Specifies the full path of
                                         the shell or command interpreter that runs
                                         when a Telnet user logs on. The default is 
                                         CMD.EXE, but can be set to a UNIX shell.
                                         
LoginScript            REG_EXPAND_SZ     Sets the full path of a batch
                                         file than runs when a Telnet user logs on. 

MaxConnections         REG_DWORD         Unless you purchase a license through 
                                         Services for UNIX, the hard coded limit is 
                                         two simultaneous connections.
                                          
MaxFailedLogins        REG_DWORD         Determines the number of 
                                         failed logons before a user
                                         is disconnected. (the 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 TCP port for Telnet
                                         connections. (the default is 23)
  
TermCap                REG_EXPAND_SZ     Sets the full path to the 
                                         "terminal capabilities" file that
                                         defines standard layouts and key mappings 
                                         for common emulation types (for 
                                         example, VT52, VT100, and ANSI). 

NumThreadsPerProcessor REG_EXPAND_SZ     At HKEY_LOCAL_MACHINE\Software\Microsoft\TelnetServer\1.0\Performance
                                         this value determines the number of threads 
                                         assigned to each processor for execution. The default value is 10.
                                         The minimum value is 2.
NOTE: If you change any values, you must stop and start the telnet service. Open a CMD.EXE prompt and type:

net stop telnet
net start telnet

NOTE: See The tlntadmn.exe command-line tool for Telnet Server service configuration.



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