Telnet commands

Applies to all editions of Windows Vista.
Which edition of Windows Vista am I using?

The following table describes the commands you can use in Telnet Client.

Type this

To do this

open or o

Establish a Telnet connection with a host computer or remote server. You can use the full command, open, or abbreviate it to just o. For example, o redmond 44 will connect your computer to a computer named redmond using port 44.

Close or c

Close an existing Telnet connection. It can be combined with a host name and port number. For example, c redmond 44 closes the connection with the remote server redmond on port 44.

display

View the current settings for Telnet Client.

Type display for a list of the current operating parameters. If you are in a Telnet session (connected to a Telnet server), to modify the parameters, press CTRL+] to leave the Telnet session. To return to the Telnet session, press ENTER. The following operating parameters are available:

•	WILL AUTH (NTLM Authentication)
•	WONT AUTH
•	WILL TERM TYPE
•	WONT TERM TYPE
•	LOCALECHO off
•	LOCALECHO on

quit or q

Exit from Telnet.

set

Set the terminal type for the connection, turn on local echo, set authentication to NTLM, set the escape character, and set up logging.

•	SET NTLM turns on NTLM. While you are using NTLM authentication, if you're connecting from a remote computer, you will not be prompted to type a logon name and password.
•	SET LOCALECHO turns on local echoing.
•	SET TERM {ANSI\|VT100\|VT52\|VTNT} sets the terminal type to the appropriate terminal type. You should use the VT100 terminal type if you are running normal command-line applications. Use the VTNT terminal type if you are running advanced command-line applications, such as edit.
•	ESCAPE + Charactersets the key sequence to use for switching from session to command mode. For example, to set CTRL+P as your escape character, type set escape, press CTRL+P, and then press ENTER.
•	LOGFILE FileName sets the file to be used for logging Telnet activity. The log file must be on your local computer. Logging begins automatically when you set this option.
•	LOGGING turns on logging. If no log file is set, an error message is displayed.

unset

Turn off local echo or sets authentication for the logon or password prompt.

•	UNSET NLM turns off NLM.
•	UNSET LOCALECHO turns off local echoing.

status

Determine whether Telnet Client is connected.

CTRL+]

Move to the Telnet command prompt from a connected session.

enter

Go to the connected session (if it exists).

?/help

View Help information.

Telnet commands

See also