3.0;telnet (tcp/ip telnet utility), revision 3.0, 86/11/18
TELNET -- Log in to remotely host across TCP/IP internet.
usage: TELNET [-DEBUG] [host [-T n]]
FORMAT
TELNET [-DEBUG] [host [-T n]]
TELNET allows you to log in to a remote host and use your node as if it were a
local terminal on that machine. You can use TELNET directly as a dumb terminal
emulator, or you can run it within the DOMAIN VT-100 emulator to use the
VT-100 functions. TELENET supports the Department of Defense TELNET protocols
as described in RFC 854.
If you log in to the remote host successfully, you can use any of the TELNET
commands to manage to communications connection between your node and the
remote host. The available TELNET commands are listed below.
ARGUMENTS
host
(optional) Internet name of the remote host to which you want to log
in. The remote host must be a valid, configured TCP/IP
host name.
Default if omitted: initiate TELNET in command mode
without making a connection.
OPTIONS
-DEBUG Generate a packet tracing for the connection.
-T n Set the connection timeout to 'n' seconds. If the
connection attempt fails to complete within the specified
time, TELNET aborts the attempt. You can only specify this
option if you also specify 'host'.
TELNET COMMANDS
You can enter one of the following commands whenever TELNET is in command
mode; that is, when the asterisk (*) prompt appears at the beginning of the
line. To enter command mode, press <F1> after you are connected to the remote
host. To return to normal mode, press <F1> again. You can also enter a
command between a TELNET command escape character and a <RETURN>.
NOTE: You must enter all TELNET commands in lowercase letters.
COMMAND DESCRIPTION
ao Send an Abort Output command followed by a Synch signal to the
remote. It tells the remote to stop sending output.
ayt Send an Are You There command to see if the TELNET server is
running on the remote.
break Send a Break command to the remote. This simulates the BREAK
key on a terminal.
brief Set to brief mode so that TELNET displays only important
changes in the connection. TELNET operates in brief mode by
default. So, you use this command only to return to brief
mode after executing a verbose command.
close Close the current connection to the remote after all the
internal buffers are empty.
connect Open a connection to a remote. This is identical to using the
TELNET open command.
ec Send a TELNET Erase Character command to the remote. This is
equivalent to pressing the DELETE key on the terminal (except
that the last character is not visibly erased from the
screen).
el Send a TELNET Erase Line command to the remote.
ga Send a TELNET Go Ahead command to the remote. This command is
intended to control half-duplex communication and is generally
not useful when communicating with the remote.
help|? Display a brief summary of TELNET commands and their
descriptions.
ip Send a telnet Interrupt Process command followed by a Synch
signal to the remote. This command causes the remote to
interrupt or halt the command currently executing.
open Open a connection to a remote. This is identical to using the
TELNET connect command.
quit Exit TELNET and return to the Shell after closing an open
connection. Unlike a close command, quit doesn't wait until
the internal buffers are empty.
set escape Set the TELNET command escape character so that you can enter
TELNET commands without pressing <F1>. TELNET interprets any
characters typed between the escape character and a <RETURN>
as a TELNET command.
stty Invoke the DOMAIN/IX stty command. This command reports on
and sets the terminal options such as speed, parity, and
control.
synch Send a Synch signal to the remote. This signal is a TCP Urgent
notification coupled with a TELNET Data Mark character. It is
similar to a local terminal's BREAK or ATTN key. Synch
instructs the remote TELNET process to immediately scan the
TELNET data stream for any ip, ao, or ayt commands; their
local equivalents; and any other TELNET commands. The process
clears the data path by discarding any intervening data
characters up to the Synch signal.
verbose Set to verbose mode so that TELNET announces all changes in
the connection to the remote. In verbose mode, TELNET reports
options (such as remote echo) that are negotiated when you
connect to the remote. To return to the default brief mode,
execute the brief command.
x Invoke a DOMAIN Shell process and pass a command to the Shell
process rather than the existing process. You can execute a
single Shell process by specifying the desired Shell command
on the same command line. To execute several Shell commands,
enter x by itself. You can execute Shell commands at the
Shell prompt and then exit the Shell by typing a CTRL/Z or EOF
command. You return to the TELNET session in normal mode.
raw Go into pad raw mode to send each character as it is entered.
cooked Go into pad cooked mode to send data on a line-by-line basis.