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Date:      Tue, 5 Jun 2001 18:32:00 -0500
From:      Mike Meyer <mwm@mired.org>
To:        "Brent Bailey" <brentb@loa.com>
Cc:        questions@freebsd.org
Subject:   Re: kernel -security
Message-ID:  <15133.27632.140669.309442@guru.mired.org>
In-Reply-To: <50686888@toto.iv>

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Brent Bailey <brentb@loa.com> types:
> I recently install 4.3 FBSD an i noticed you have the option of picking
> "type of security"   i chose "extreme"  and all it really does is add
> kern_securelevel="2"
> kern_securelevel_enable="YES"

It does a little bit more than that. See <URL:
http://www.freebsd.org/doc/en_US.ISO_8859-1/books/faq/install.html#SECURITY-PROFILES
> for details.

> to the /etc/rc.conf  file.....my question is what advantages as far as
> security does this offer ??   I also installed IPFW w/ NAT  and a few other
> measures to keep unwanted THINGS at bay...

NAT can do pretty much everything natd does as far as security goes,
using deny_incoming and log_denied. See the natd man page for details.

> im unclear as to what the kern security offers >??

As Bill pointed out, the init man page describes exactly what the
kernel security levels do.

	<mike
--
Mike Meyer <mwm@mired.org>			http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.

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