> > I allow read-access to all of /var/log. However, I also allow read
> > access to /etc/shadow:
> > 
> >   /usr/bin/tail /var/log/../../etc/shadow
> > 
> > does work. How can I best restrict that? I've tried
> 
> 
> /usr/bin/tail/[^.]*

/usr/bin/tail /var/log/[^.]*
will prevent
sudo tail /var/log/../../etc/shadow
but not
sudo tail /var/log/apache/../../../etc/shadow
:-(

I have no better idea.

Stony


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