IF01084
TELNET
TELNET (TELetype NETwork) is a network protocol used on the Internet or local
area network (LAN) connections. It was developed in 1969 beginning with RFC#0015
and standardized as IETF STD 8, one of the first Internet standards.
The term telnet also refers to software which implements 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). Recently, SSH has begun to
dominate remote access for Unix-based machines.
"To telnet" is also used as a verb meaning to establish or use a TELNET or other
interactive TCP connection, as in, "To change your password, telnet to the
server and run the passwd command".
Most often, a user will be telneting to a unix-like server system or a simple
network device such as a switch. For example, a user might "telnet in from home
to check his mail at school". In doing so, he would be using a telnet client to
connect from his computer to one of his servers. Once the connection is
established, he would then log in with his account information and execute
operating system commands remotely on that computer, such as ls or cd.
On many systems, the client may also be used to make interactive raw-TCP
sessions.
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