From owner-freebsd-security Thu Nov 22 0:52:35 2001 Delivered-To: freebsd-security@freebsd.org Received: from elvis.mu.org (elvis.mu.org [216.33.66.196]) by hub.freebsd.org (Postfix) with ESMTP id 9593937B405 for ; Thu, 22 Nov 2001 00:52:33 -0800 (PST) Received: by elvis.mu.org (Postfix, from userid 1192) id 7ED4D81D14; Thu, 22 Nov 2001 02:52:28 -0600 (CST) Date: Thu, 22 Nov 2001 02:52:28 -0600 From: Alfred Perlstein To: Sheldon Hearn Cc: Dave Raven , freebsd-security@FreeBSD.org Subject: Re: Best security topology for FreeBSD Message-ID: <20011122025228.X13393@elvis.mu.org> References: <005f01c172b1$7a8503c0$3600a8c0@DAVE> <18259.1006418939@axl.seasidesoftware.co.za> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <18259.1006418939@axl.seasidesoftware.co.za>; from sheldonh@starjuice.net on Thu, Nov 22, 2001 at 10:48:59AM +0200 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org * Sheldon Hearn [011122 02:47] wrote: > > > On Wed, 21 Nov 2001 19:25:12 +0200, "Dave Raven" wrote: > > > With IPFilter this is not so, IPNat runs in the kernel and should be faster. > > If you are planning on large usage I would recommend IPFilter (less load) > > and IPNat. > > I'm having trouble with IPFW+natd servicing a high-volume web cluster. > I'm finding that natd hogs just about all available cycles on one of the > two PII CPUs in the box. The throughput of through the firewall has > also dropped since I migrated from the Linux IPchains monster we had > before. > > I'll post my findings in follow-up later this month. natd isn't exactly high performance, there's nothing particularly bad about it besideds it requiring mulitple copies across the userspace kernel boundry. Have you taken a look at using ipfilter and ipnat? It may offer better performance, no promises though. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' http://www.morons.org/rants/gpl-harmful.php3 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message