Am Samstag 20 November 2010 schrieb Wilko Fokken:
> Moin mitnanner,
Hallo auch,
> Ich weiß nicht, ob mein Debian Sarge hier so veraltet ist, daß meine
> Options- Überlegungen für Euch irrelevant sind. Falls nicht:
Sieht nicht so aus:
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 shut‐
down is called with the -a argument (add this to the invoca‐
tion of shutdown in /etc/inittab), it checks to see if the
file /etc/shutdown.allow is present. 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/shut‐
down.allow is one user name per line. Empty lines and com‐
ment lines (prefixed by a #) are allowed. Currently there is
a limit of 32 users in this file.
Note that if /etc/shutdown.allow is not present, the -a
argument is ignored.
Manpage zu shutdown aus sysvinit 2.88dsf-12 aus Squeeze.
Sowie:
shambhala:~> shutdown 2>&1 | head -2
Usage: shutdown [-akrhPHfFnc] [-t sec] time [warning message]
-a: use /etc/shutdown.allow
PS: Für Debian Sarge gibts seit langer Zeit keine
Sicherheitsaktualisierungen mehr. Du machst aber den Eindruck, als
könntest Du das wissen ;).
Ciao,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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