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Re: [suse-security] Problem: permission bits changed on files automatically

On Fri, 2003-10-03 at 10:50, David C. Grosvold wrote:
> Anybody have any experience with this?
> On an intermittent basis,  all of the files in my home directory with mode 
> 0775 are changed to mode 0675 without my knowledge.
> I've checked the cron jobs for root to see if anything looks out of place, but 
> nothing shows up.
> I'm running SuSE 8.2, with everything up to date, but this has been happening 
> since version 7.3, it's just now become so frequent that I've decided I have 
> to resolve it.
> I usually discover the problem when shell scripts or Perl scripts suddenly 
> stop working when I call them from either the command line or cron.
> My SuSE system is on DSL, with a D-Link 604 DSL router, an internal network 
> with Windoze 2000 (two laptops and a desktop) and an old SCO Unix 5.0 box. 
> I have Samba 2.2.7a running to allow the Windoze boxes to use the SuSE box as 
> a file exchange point, McAfee virusscan is installed on all Windoze boxes. 
> I do cross-platform database development using Linux, Windoze, and Unix, but 
> my primary box and my desktop are Linux. Windoze is there solely for 
> development purposes.
> I've been a Unix/Linux system administrator for 15 years - my firs Unix box 
> was a Unisys Tower (re-badged NCR Tower) with a Motorola 68020 processor and 
> NCR Tower Unix (AT&T SystemV release 2.5). Things have come a mightly klong 
> way since then.
> At any rate, if anyone can shed any light on this, it would be appreciated.
> -- 
> ---------------------------------------------------
> Dave Grosvold
> dave@xxxxxxxxxxx
> ---------------------------------------------------

Let me guess, the permissions changed after a reboot. If that is the
case look at the /etc/permissions.* files as that is where the
permissions are set for many files.

Ken Schneider
unix user since 1989
linux user since 1994
SuSE user since 1998

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