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SubjectRe: Direct access to hardware
On Sat, 22 Jul 2000, Ville Herva wrote:

> > > Of course, kernel module loading should be disabled as well (or made
> > > available only via challange-response authentication or something (*)).
> >
> > You can load all needed modules and then disable modules loading with the
> > same /proc/sys/kernel/cap-bound ...
>
> Good.

Of course you need to keep your bootable medium protected, ot at least the
kernel. I think linux implements the concept of immutable files but I may
have the os:s mixed up.

It is a usability vs. security issue. You can tighten security immensly
through capabilities, but then you will have a much harder time as an
administrator.

Peter
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