Telnet Server Admin Tool TlntAdmn.exe Command Line Reference

Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista

The Telnet Server administrative tool, TlntAdmn.exe (also known in its command-line form as tlntadmn), administers a local or a remote computer that is running Telnet Server. Used without parameters, tlntadmn displays local server settings.

TlntAdmn.exe is a command-line tool that must be run with various command-line parameters to configure Telnet Server options. TlntAdmn.exe is installed when you install Telnet Server. You can use Tlntadmn.exe in scripts or batch files to automate Telnet Server configuration tasks. To use TlntAdmn.exe:

  • You must be a member of the Administrators local group.

  • Both the computer you are administering and the computer at which you use the tlntadmn command must be running, Windows Server 2008, Windows Vista, Windows Server 2003, or Windows XP.

  • You must log on to the local computer with administrative credentials. To administer a remote computer, you must also provide administrative credentials for the remote computer. You can do so by logging on to the local computer with an account that has administrative credentials for both the local computer and the remote computer. If you cannot use this method, you can use the -u and -p parameters to provide administrative credentials for the remote computer.

    In addition, if User Account Control (UAC) is enabled on the client, you must run tlntadmn from a command prompt started with the Run as administrator option. If UAC is enabled on the Telnet Server, you must have the server configured to allow administrative privileges to be used in a Telnet session.

For more information, see Configure Telnet Server to Allow Administrator Access with Password Authentication (

See Also


Telnet Client Startup Parameter Reference
Telnet Client Command Reference
Telnet Registry Entries
Telnet Errors and Events
RFCs Supported by the Microsoft Implementation of Telnet