telnet command

telnet [host [port]]

host	specifies the hostname or IP address of the remote computer to connect to.
port	Specifies the port number or service name.

Commands available through the actual telnet program:

close	close current connection
display	display operating parameters
open	connect to a site
quit	exit telnet
set	set options (type 'set ?' for a list) NTLM Turn ON NTLM Authentication. LOCAL_ECHO Turn ON LOCAL_ECHO. TERM x (where x is ANSI, VT100, VT52, or VTNT) CRLF Send both CR and LF
status	print status information
unset	unset options (type 'unset ?' for a list) NTLM Turn OFF NTLM Authentication. LOCAL_ECHO Turn OFF LOCAL_ECHO. CRLF Send only CR (no LF is sent)
?/help	print help information

Examples

telnet myhost.com

Telnet to the computer myhost.com