Re: loginwindow hooks- ARGHHHH!!!!

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#1896

From: Apostolos Lytras
Date: Fri, 20 Nov 1992 13:43

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Argghhh.... root runs shellscripts!! DON'T DON'T DON'T! A shellscript
that is run by root *is* a threat to the security of your system and 
possibly of many other systems as well. Especially when it is supposed
to run inattendedly.

Besides, your programs look like a lot of redundancy to me. Every Login
and Logout gets logged (with time, connecting host etc.) in
/usr/adm/wtmp. There is also information about shutdowns, reboots and
crashes in that file. 

You get at least two unix programs to evaluate that file: last, ac. For
details let Librarian.app show you the according man pages.

You can also search the archives (with archie) for a little piece of C
code called 'rdwtmp.c' which gives you yet another view of the login
data in /usr/adm/wtmp.

Cheers
- A.
-- 
	 lytras@ifi.unizh.ch   		|   Apostolos Lytras
	 lytras@avalon.physik.unizh.ch	|   Informatik Club der Uni
	 lytras@amiga.physik.unizh.ch  	|   Zuerich, SysAdmin

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Message-ID: <1992Nov20.134347.9096@ifi.unizh.ch>

Path: arc1-ca.pugleaf.net!sparky!uunet!usc!rpi!ghost.dsi.unimi.it!univ-lyon1.fr!chx400!josef!avalon.physik.unizh.ch!lytras

References: <1992Nov19.191653.29086@schbbs.mot.com> <1992Nov20.015714.21620@murdoch.acc.Virginia.EDU> <By08zy.Bw2@ux1.cso.uiuc.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!rpi!ghost.dsi.unimi.it!univ-lyon1.fr!chx400!josef!avalon.physik.unizh.ch!lytras
From: lytras@avalon.physik.unizh.ch (Apostolos Lytras)
Subject: Re: loginwindow hooks- ARGHHHH!!!!
Message-ID: <1992Nov20.134347.9096@ifi.unizh.ch>
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Organization: Informatik Club d. Universitaet, Zuerich
References: <1992Nov19.191653.29086@schbbs.mot.com> <1992Nov20.015714.21620@murdoch.acc.Virginia.EDU> <By08zy.Bw2@ux1.cso.uiuc.edu>
Date: Fri, 20 Nov 1992 13:43:47 GMT
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