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CALIFE(1)		  BSD General Commands Manual		     CALIFE(1)

NAME
     calife -- becomes root (or	another	user) legally.

SYNOPSIS
     calife [-]	[login]

	    or

     ... [-] [login] for some sites (check with	your administrator).

DESCRIPTION
     Calife requests user's own	password for becoming login (or	root, if no
     login is provided), and switches to that user and group ID	after verify-
     ing proper	rights to do so.  A shell is then executed.  If	calife is exe-
     cuted by root, no password	is requested and a shell with the appropriate
     user ID is	executed.

     The invoked shell is the user's own except	when a shell is	specified in
     the configuration file calife.auth.

     If	``-'' is specified on the command line,	user's profile files are read
     as	if it was a login shell.

     This is not the traditional behavior of su.

     Only users	specified in calife.auth can use calife	to become another one
     with this method.

     You can specify in	the calife.auth	file the list of logins	allowed	for
     users when	using calife.  See calife.auth(5) for more details.

     calife.auth is installed as /usr/local/etc/calife.auth.

FILES
     /usr/local/etc/calife.auth
		       List of users authorized	to use calife and the users
		       they can	become.
     /usr/local/etc/calife.out
		       This script is executed just after getting out of
		       calife.

SEE ALSO
     su(1), calife.auth(5), group(5), environ(7)

ENVIRONMENT
     The original environment is kept. This is not a security problem as you
     have to be	yourself at login (i.e.	it does	not have the same security im-
     plications	as in su(1) ).

     Environment variables used	by calife:

     HOME  Default home	directory of real user ID.

     PATH  Default search path of real user ID unless modified as specified
	   above.

     TERM  Provides terminal type which	may be retained	for the	substituted
	   user	ID.

     USER  The user ID is always the effective ID (the target user ID) after
	   an su unless	the user ID is 0 (root).

BUGS
     The MD5-based crypt(3) function is	slower and probably stronger than the
     DES-based one but it is usable only among FreeBSD 2.0+ systems.

HISTORY
     A calife command appeared in DG/UX, written for Antenne 2 in 1991.	It has
     evolved considerably since	this period with more OS support, user lists
     handling and improved logging.

     PAM support was introduced	in 2005	to port	it to MacOS X variants (Pan-
     ther and up).

AUTHOR
     Ollivier Robert <roberto@keltia.freenix.fr>

BSD			      September	25, 1994			   BSD

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | ENVIRONMENT | BUGS | HISTORY | AUTHOR

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