SE Linux preventing mounting an iso on FC5 through nfs

[Stephen Smalley]

On Thu, 2007-01-11 at 16:04 -0500, Matthew Shapiro wrote:
> >>> Stephen Smalley <sds at tycho.nsa.gov> 01/11/07 3:07 PM >>>
> >audit2allow -M local < /var/log/messages
> >semodule -i local.pp
> 
> Wow that makes life simple.  Thanks a lot!
> 
> >Did you look at the Fedora SELinux FAQ and wiki pages?
> >http://fedora.redhat.com/docs/selinux-faq-fc5/
> >http://fedoraproject.org/wiki/SELinux/
> 
> Actually I did not know about these (the HOWTO's I found was a policy
> HOWTO and a general (focused on debian) SELinux introduction).  This
> look like great resources though.
> 
> > Are you actually using strict policy?  It isn't the default in Fedora.
> 
> Ah that explains it.  I actually got confused with the versions
> (installed the strict src from fc3 by accident, targeted wouldn't
> install) and that explains why my last attempt didn't work.   I
> confirmed and it is setup to use targeted.  Though the loadable modules
> that I now know about make doing this much easier anyways.
> 
> >nfs_t is a file type, not a process domain, and you want to allow
> >mount_t to read nfs_t:file, not transition into it.
> 
> Gotcha.  From the documentation I read it made it seem like the _t
> denoted a domain.  Guess I have some more reading to do to fully
> understand everything that is going on.

A domain is just a kind of type, specifically a process type.  SELinux
collapses the two concepts together.

-- 
Stephen Smalley
National Security Agency