Re: noexec mount-option with selinux?

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On Fri, 2006-05-12 at 15:46 +0200, Marten Lehmann wrote:
> > If the quota limits need to be as strict as your first message indicates, then 
> > I'm surprised you haven't already had /tmp/ on a separate filesystem, with 
> > separate quotas set.  Additionally, I always split off /tmp/ so *if* it 
> > fills, it doesn't "damage" my root filesystem.
> 
> Actually, /home is not part of the root-partition and /tmp could be a 
> symlink to /home/tmp so both can use the some quota definitions. But how 
> can I setup a system-wide policy that disallows to execute files from 
> /tmp or /home/tmp?

That sounds like a very hard way of doing things. And difficult to prove
correct too.

How about:

mkdir /home/tmp
mount -o bind,noexec,nosuid /home/tmp /tmp

Much easier, guaranteed secure.

Cheers,

Martin.

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