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Re: mounting /tmp noexec



David Wright <d.wright@open.ac.uk> writes:

> Quoting Thomas Bushnell, BSG (tb@becket.net):
> > Ian <ian@ids.org.au> writes:
> > > so surely, if nothing needs to be executed, it is better to mount
> > > noexec?
> > 
> > noexec has no good purpose, really.  But it's intention was for
> > networked filesystems in certain environments, not a generalized
> > security tool.
> 
> It's very useful for mounting filesystems like vfat, where otherwise
> all the files are marked executable which makes mc a PITA to use for
> examining archive files (mc tries to execute them!).

Ah, interesting. ;)  Of course, that isn't a security related reason.

It would probably be better if vfat had a more clever way of marking
them executable: perhaps it should look at the file to see whether the
kernel *could* conceivable execute it.



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