Details: Protocol Telnet
One of the older network protocols, protocol
telnet was developed in 1969 in RFC 15. It was later updated in May 1983
in RFC854 before becoming standardized as Internet Standard STD 8 by the
Internet Engineering Task Force. Telnet’s purpose is providing a
general, 8-bit byte-oriented, bi-directional communications through
standard interfaces between terminal devices. Protocol telnet is a
transmission control protocol used for transmitting data through a
virtual terminal connection. With roots in academia and research
facilities, protocol Telnet was initially fine for its use but not
terribly secure. For the most part, early telnet did not encrypt
transmissions (though some encryption types were later specified),
making eavesdropping a real concern in this day of privacy issues and
computer hacking. Because security has become much more of a concern,
protocol telnet has largely been replaced by more secure protocols. It
hasn’t disappeared completely though and remains popular for some
applications such as where telnet runs over secured networks, enterprise
networks accessing mainframe computers, and Internet gaming clubs.
Protocol telnet has over two dozen related RFCs covering everything from
echo options and binary transmissions to window size and the telnet URI
scheme. The Internet Assigned Numbers Authority maintains a list of all
telnet options, authentication types, encryption types, and references.
Associated Protocol Telnet Applications:
Telnet clients and terminals
