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RLOGIN(1)		FreeBSD	General	Commands Manual		     RLOGIN(1)

NAME
     rlogin -- remote login

SYNOPSIS
     rlogin [-468DEd] [-e char]	[-i localname] [-l username] host

DESCRIPTION
     The rlogin	utility	starts a terminal session on a remote host host.

     The rlogin	utility	first attempts to use the Kerberos authorization mech-
     anism, described below.  If the remote host does not support Kerberos the
     standard Berkeley rhosts authorization mechanism is used.

     The following options are available:

     -4	   Use IPv4 addresses only.

     -6	   Use IPv6 addresses only.

     -8	   Allow an eight-bit input data path at all times; otherwise parity
	   bits	are stripped except when the remote side's stop	and start
	   characters are other	than ^S/^Q.

     -D	   Set the TCP_NODELAY socket option which can improve interactive
	   response at the expense of increased	network	load.

     -E	   Stop	any character from being recognized as an escape character.
	   When	used with the -8 option, this provides a completely transpar-
	   ent connection.

     -d	   Turn	on socket debugging (see setsockopt(2))	on the TCP sockets
	   used	for communication with the remote host.

     -e	   Allow user specification of the escape character, which is ``~'' by
	   default.  This specification	may be as a literal character, or as
	   an octal value in the form \nnn.

     -i	   Allow the caller to specify a different local name to be used for
	   authentication.  This option	is restricted to processes with	uid 0.

     -l	   Specify a different username	for the	remote login.  If this option
	   is not specified, your local	username will be used.

     A line of the form	``<escape char>.'' disconnects from the	remote host.
     Similarly,	the line ``<escape char>^Z'' will suspend the rlogin session,
     and ``<escape char><delayed-suspend char>'' suspends the send portion of
     the rlogin	session, but allows output from	the remote system.  By
     default, the tilde	(``~'')	character is the escape	character, and nor-
     mally control-Y (``^Y'') is the delayed-suspend character.

     All echoing takes place at	the remote site, so that (except for delays)
     the rlogin	is transparent.	 Flow control via ^S/^Q	and flushing of	input
     and output	on interrupts are handled properly.

KERBEROS AUTHENTICATION
     Each user may have	a private authorization	list in	the file .klogin in
     their home	directory.  Each line in this file should contain a Kerberos
     principal name of the form	principal.instance@realm.  If the originating
     user is authenticated to one of the principals named in .klogin, access
     is	granted	to the account.	 The principal accountname.@localrealm is
     granted access if there is	no .klogin file.  Otherwise a login and	pass-
     word will be prompted for on the remote machine as	in login(1).  To avoid
     certain security problems,	the .klogin file must be owned by the remote
     user.

     If	Kerberos authentication	fails, a warning message is printed and	the
     standard Berkeley rlogin is used instead.

ENVIRONMENT
     The following environment variable	is utilized by rlogin:

     TERM  Determines the user's terminal type.

SEE ALSO
     login(1), rsh(1), telnet(1), setsockopt(2), kerberos(3),
     krb_realmofhost(3), krb_sendauth(3), ruserok(3), tty(4), auth.conf(5),
     hosts(5), hosts.equiv(5), rlogind(8), rshd(8)

FILES
     /etc/hosts
     /etc/hosts.equiv
     /etc/auth.conf
     $HOME/.rhosts
     $HOME/.klogin

HISTORY
     The rlogin	command	appeared in 4.2BSD.

     IPv6 support was added by WIDE/KAME project.

BUGS
     The rlogin	utility	will be	replaced by telnet(1) in the near future.

     More of the environment should be propagated.

FreeBSD	9.3		      September	26, 2003		   FreeBSD 9.3

NAME | SYNOPSIS | DESCRIPTION | KERBEROS AUTHENTICATION | ENVIRONMENT | SEE ALSO | FILES | HISTORY | BUGS

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