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Date:      Sun, 21 Jun 2009 13:31:14 -0400
From:      Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
To:        Tim Judd <tajudd@gmail.com>
Cc:        freebsd-questions <freebsd-questions@freebsd.org>
Subject:   Re: kern.securelevel
Message-ID:  <441vpdmr31.fsf@lowell-desk.lan>
In-Reply-To: <ade45ae90906181843j7c33a56dkd79c777ad67ff5cc@mail.gmail.com> (Tim Judd's message of "Thu\, 18 Jun 2009 19\:43\:42 -0600")
References:  <ade45ae90906181843j7c33a56dkd79c777ad67ff5cc@mail.gmail.com>

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Tim Judd <tajudd@gmail.com> writes:

> Something dawned on me.  FreeBSD/Open/Net are all well secured
> systems.  On an Internet-facing router, would applying a higher
> kern.securelevel provide any better, tighter, higher security if the
> machine was broken into?  Given you need to lower the securelevel
> before multiuser, it is a reasonable to think raising the securelevel
> will give higher comfort feeling?

I can't understand your last sentence.

The obvious thing is that a raised securelevel only helps if it doesn't
get in the way of operations you need to do.  A bit less obvious is that
it only helps if you are sure you will know if the system reboots.

-- 
Lowell Gilbert, embedded/networking software engineer, Boston area
		http://be-well.ilk.org/~lowell/



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