Re: [SLUG] /dev/null

From: Russell Hires (rhires@earthlink.net)
Date: Wed Jul 23 2003 - 23:13:30 EDT


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On Wednesday 23 July 2003 11:39 am, Derek Glidden wrote:
> On Tue, 2003-07-22 at 22:18, Russell Hires wrote:
> > I've got a strange problem. The permissions for /dev/null are changing on
> > me. The correct perms are:
> > crw-rw-rw- 1 root root 1, 3 Jul 22 22:10 /dev/null
> >
> > but twice so far, in about two weeks, the perms changed to -rw-------
> > I don't know why, and I don't know how to prevent this from happening.
> > (It's surprising how many apps use /dev/null) Any one have a clue on this
> > one?
>
> What distro?
Debian...woody...

> If you're not running RedHat, then I'm stumped. Something is clearly
> changing it - look for apps that you're running with setuid root, or
> look at CRON jobs to see if anything touches /dev/null that shouldn't.
I've had problems w/ X as well. For example...when my screen saver goes on,
the X server crashes, and I'm not able to get to a console, or log in
remotely; although, my firewall setup still works, and forwards packets to
the rest of my network.

As for CRON jobs...okay. I'll check that. :-) But for programs running setuid
root...how do I tell if they are? Where would I look?

Russell
- --
Linux -- the OS for the Renaissance Man
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