/dev/tty keeps changing permissions..?

Joshua Oreman oremanj at webserver.get-linux.org
Sat Jun 7 22:32:28 PDT 2003

On Sat, Jun 07, 2003 at 10:21:17PM -0700 or thereabouts, Thomas Park seemed to write:
> Hello,
> I've been having an interesting problem with my FreeBSD 5.0 install -
> for whatever reason, the permissions and ownership on /dev/tty keep on
> being automatically changed in such a way that it becomes impossible for
> most users of the system to initiate outbound SSH sessions.
> I'm not sure what causes this, but after a few days of running, I'll
> notice that the system has set up /dev/tty thusly:
> crw--w----  1 tpark  tty    5,   1 Jun  7 22:02 /dev/tty
> Which, of course, means that any user not myself or in group "tty" will
> have problems.
> On my previous FreeBSD 4.6 install, /dev/tty was owned by "root:wheel"
> and had permissions 0666 set.
> I tried setting /dev/tty to this configuration on the new system, which
> makes ssh and other tools work fine.  The catch: I found that the system
> will randomly revert /dev/tty to the oddball individual user ownership
> and mode 0620 - I haven't been able to figure out what causes this or
> when this happens.
> If anybody has any advice on how to prevent the system from doing this,
> I would be much relieved!

Well, I don't know what's causing it, but check the periodic scripts.
Look at the ctime (`ls -lc') of the file. That's when the mode (actually,
the inode) was last changed.

-- Josh

> Thanks,
> thomas park
> .....................................
> Thomas Park | driveSPEED Designs, LLC
> e: tpark at drivespeed.com
> t: +1 415 292 8915
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