Telnet

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TELNET

[′tel‚net]
(communications)

TELNET

/tel'net/ 1. The Internet standard protocol for remote login. Runs on top of TCP/IP. Defined in STD 8, RFC 854 and extended with options by many other RFCs. Unix BSD networking software includes a program, telnet, which uses the protocol and acts as a terminal emulator for the remote login session. Sometimes abbreviated to TN. TOPS-10 had a similar program called IMPCOM.

2. The US nationwide network into which one dials to access CompuServe. It was created by John Goltz, one of the founders and system guru of CompuServe. He later worked for Tymshare, one of CompuServe's big competitors.

Telnet

A terminal emulation protocol used on the Internet and TCP/IP-based networks. A Telnet program allows a user at a terminal or PC to log in to a remote computer and run a program and execute other Unix commands. Originally developed for ARPAnet, Telnet is a common utility in the TCP/IP protocol suite, but it is not secure and transfers commands in the clear. Secure shell (SSH) provides an encrypted alternative that is widely used (see SSH). See also Telenet.


Telnetting from Windows
The Telnet utility in Windows is used to log in to and run programs on servers in local networks as well as the Internet. In this example, Telnet is used for local device management. It is logged into a router to run the device's built-in configuration software.