| Columbia
University
Information Technology Telnet
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| Telnet
is a program that
allows a computer user at one site to work on a computer
at another site. It is the Internet standard protocol for remote terminal
connection service.
Telnet requires Internet access, that is, you must be on a TCP/IP network that gateways to the Internet. Unlike FTP and electronic mail, Telnet actually exposes you to the commands and programs of the remote host. In most cases, a user must make arrangements beforehand to use telnet on a remote host. Some interactive programs allow any network traveller to log in with no password or a password that is advertised. Sometimes the password is "anonymous" and the password can be "guest." The type of activity allowed with anonymous telnet is restricted. telnet - user interface to the TELNET protocol Syntax: telnet [host[port]] ? [ command ] Accesses
on-line help. With no arguments, telnet prints
rlogin (remote login) A program and protocol
provided in Berkeley UNIX (see BSD) that permits a user on one computer
to log in to another computer. This protocol is largely implemented among
UNIX machines, but the protocol is general enough that non-UNIX machines
may use it. For example, Excelan ANNEX terminal concentrators permit users
on dumb terminals to use the rlogin protocol to communicate with Internet
computers.
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