bugtraq - Re: Email marketing company gives out questionable security advice

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Message-ID: <20030707185242.18C3A174D2@arioch.imrryr.org>
Date: Mon, 07 Jul 2003 14:52:41 -0400
From: Roland Dowdeswell <elric@...ryr.org>
To: "D. J. Bernstein" <djb@...yp.to>
Subject: Re: Email marketing company gives out questionable security advice

On 1057360640 seconds since the Beginning of the UNIX epoch
"D. J. Bernstein" wrote:
>

>P.S. It's hard for a portable chroot tool to cut off a program's network
>access. Kernel designers should provide a disablenetwork() syscall, with
>the disabling inherited by children. Other kernel changes would be nice,
>but disablenetwork() is the only critical change.

There are tools such as systrace:

	http://www.citi.umich.edu/u/provos/systrace/

which comes standard in NetBSD and OpenBSD and has been ported to
various other UNIX platforms which can do what you want.

--
    Roland Dowdeswell                      http://www.Imrryr.ORG/~elric/