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Full Discussion: To What files root does not have access to??
Top Forums Shell Programming and Scripting To What files root does not have access to?? Post 92059 by rhfrommn on Wednesday 7th of December 2005 11:17:34 AM
Old 12-07-2005
One exception is NFS mounted stuff. Root doesn't have access to files on an NFS mounted directory owned by others, unless it is specified in the mount options.

Of course, the trick above of doing an su to the userid that does own them and accessing them that way still works. I have to do that all the time at work since we automount user's home directories and I couldn't edit their login scripts as root.
 

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LEARN ABOUT DEBIAN

calife

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 veri-
     fying proper rights to do so.  A shell is then executed.  If calife is executed by root, no password is requested and a shell with the appro-
     priate 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 /etc/calife.auth.

FILES

     /etc/calife.auth  List of users authorized to use calife and the users they can become.
     /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
     implications 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 (Panther and up).

AUTHOR

     Ollivier Robert <roberto@keltia.freenix.fr>

BSD
								September 25, 1994							       BSD
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