Firewalls: Re: DNS on the Firewall

Firewalls
(October 1997)

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Subject:	Re: DNS on the Firewall - security problem
From:	"Perry E. Metzger" <perry @ piermont . com>
Date:	Sun, 12 Oct 1997 14:46:05 -0400
To:	Darren Reed <avalon @ coombs . anu . edu . au>
Cc:	adam @ homeport . org (Adam Shostack), ahuger @ silence . secnet . com, firewall-wizards @ nfr . net, firewalls @ greatcircle . com
In-reply-to:	Your message of "Sun, 12 Oct 1997 17:29:56 +1000." <199710120731 . CAA14265 @ nfr . net>
Reply-to:	perry @ piermont . com

Darren Reed writes:
> > Sorry, the kernel kludges are not available.
> 
> You might want to have a look around for implementations already available
> which do this.  I'm pretty sure this has been done by a few people already,
> once for Linux and one for FreeBSD.

There is a standard NetBSD kernel build option that I added a long
time ago to let non-privileged processes bind low numbered ports.

Perry

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