telnetd linux command

telnetd

telnetd [options]

TCP/IP command. Telnet protocol server. telnetd is invoked by the Internet server for requests to connect to the Telnet port (port 23 by default). telnetd allocates a pseudoterminal device for a client, thereby creating a login process that has the slave side of the pseudoterminal serving as stdin, stdout, and stderr. telnetd manipulates the master side of the pseudoterminal by implementing the Telnet protocol and by passing characters between the remote client and the login process.

Options

-debug [port]

Start telnetd manually instead of through inetd. port may be specified as an alternate TCP port number on which to run telnetd.

-D modifier(s)

Debugging mode. This allows telnet to print out debugging information to the connection, enabling the user to see what telnet is doing. Several modifiers are available for the debugging mode:

exercise

Has not been implemented yet.

netdata

Display data stream received by telnetd.

options

Print information about the negotiation of the Telnet options.

ptydata

Display data written to the pseudo terminal device.

report

Print options information, as well as some additional information about what processing is going on.