man shutdown
ACCESS CONTROL
shutdown can be called from init(8) when the magic keys
CTRL-ALT-DEL are pressed,
by creating an appropriate entry in /etc/inittab. This means that
everyone who has
physical access to the console keyboard can shut the system down. To
prevent this,
shutdown can check to see if an authorized user is logged in on one
of the virtual
consoles. If shutdown is called with the -a argument (add this to the
invocation of
shutdown in /etc/inittab), it checks to see if the file
/etc/shutdown.allow is pre
sent. It then compares the login names in that file with the list
of people that
are logged in on a virtual console (from /var/run/utmp). Only if
one of those
authorized users or root is logged in, it will proceed. Otherwise it
will write the
message
shutdown: no authorized users logged in
to the (physical) system console. The format of /etc/shutdown.allow
is one user
name per line. Empty lines and comment lines (prefixed by a #) are
allowed. Cur
rently there is a limit of 32 users in this file.
Note that if /etc/shutdown.allow is not present, the -a argument is
ignored.
Marcin Kurc
CAD Systems Administrator
Cooper-Standard Automotive
-----Original Message-----
From: Patrick Kirk [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 09, 2002 9:24 AM
To: debuser
Subject: Allow a user to shutdown
Hi all,
I want my son to be able to shutdown the computer but don't want him
being able to access my files.
How do I give him these privileges?
Thanks in advance,
--
Patrick
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