Network - Telnet (Protocol, Client)

> NetWork

1 - About

TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network LAN connections. It was developed in 1969.

By extension, “telnet” also refers to the program which provides the client part of the protocol. TELNET clients have been available on most Unix systems for many years and are available for virtually all platforms.

Most network equipment and OSs with a TCP/IP stack support some kind of Telnet service server for their remote configuration (including ones based on Windows NT). However with recent advancements SSH has become more dominant in remote access for Unix-based machines.

To connect to arbitrary ports, see also Network - netcat (nc)

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3 - Usage

  • Start telnet
Welcome to Microsoft Telnet Client

Escape Character is 'CTRL+]'

Microsoft Telnet> help
Commands may be abbreviated. Supported commands are:

c    - close                    close current connection
d    - display                  display operating parameters
o    - open hostname [port]     connect to hostname (default port 23).
q    - quit                     exit telnet
set  - set                      set options (type 'set ?' for a list)
sen  - send                     send strings to server
st   - status                   print status information
u    - unset                    unset options (type 'unset ?' for a list)
?/h  - help                     print help information

4 - Windows Installation

Programs > Turn windows Features On/Off

5 - Documentation / Reference