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Date:      Mon, 12 Jul 1999 19:45:57 +1000 (EST)
From:      Darren Reed <avalon@coombs.anu.edu.au>
To:        robert+freebsd@cyrus.watson.org
Cc:        security@freebsd.org
Subject:   Re: Module magic
Message-ID:  <199907120945.TAA09669@cheops.anu.edu.au>
In-Reply-To: <Pine.BSF.3.96.990712053316.9028A-100000@fledge.watson.org> from "Robert Watson" at Jul 12, 99 05:38:37 am

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In some mail from Robert Watson, sie said:
> 
> Have to be a little careful with structs such as struct proc that have
> zero-able and copy-able sections at fork().  As using securelevels to
> disable module loading is currently not really too feasible for the
> mass-market, the best thing to do might just be to provide a sysctl that
> turns off module loading, and encourage server users to toggle the sysctl
> once all needed modules are loaded to prevent nasty-modules from being
> loaded.  Needless to say, it would be a one-way toggle. :-)

FWIW, I believe NetBSD systems (and OpenBSD systems) ship configured to
boot with securelevel == 0, as opposed to FreeBSD which appears to default
to -1.  FreeBSD should be the same as the others, in this respect.


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