Re: NFS random "permission denied"

[Jim Popovitch <jimpop@yahoo.com>]

On Thu, 2007-03-22 at 10:58 +0000, Dan Wade wrote:
> Hi -
> 
> Forty NFS client workstations running Debian etch and sarge, am-utils
> automounter, a dozen active users.  Server is Debian sarge on Dell
> PowerEdge 2850, PERC, Raid-5, stock kernel 2.6.8-2-686-smp.  Runs just
> fine for about 3 months, then starts randomly saying "permission
> denied".  nfs-kernel-server restart doesn't fix it.  Reboot has worked
> on both of two occasions, but 3 months later it starts "permission
> denied" again.  If there's an error in /etc/exports, I can't see it.
> 
> Googling found a couple of similar reports, but no obvious course of
> action other than checking /etc/exports.  If I've got an error there, I
> can't see it.  Sorry, can't publish - security.  In any case the
> symptoms don't mesh with a syntax error.  What should I do?

Question:  Do the logs, or manual poking around, show any read or write
problems with one or more of the exports?  

Any one making changes to /etc/hosts.(allow|deny)?

-Jim P.