From: Michael Peddemors <michael@linuxmagic.com>
To: Mike OConnor <kernel@pineview.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: netfilter-devel@us5.samba.org
Subject: Re: No more DoS
Date: Thu, 21 Dec 2000 20:09:27 -0800 [thread overview]
Message-ID: <0012212009271E.24471@mistress> (raw)
In-Reply-To: <977453684.3a42c2744fbb7@ppro.pineview.net>
In-Reply-To: <977453684.3a42c2744fbb7@ppro.pineview.net>
Not only is this a well written article, and clearer than most other
documents (Even Mine :>) but he is dead on track with his basic concepts..
Exactly what I have been looking into over at our company. (Well, close
enough)
The concept of trusting a SYN packet, has to go.. we have to assume that it
is false/bad, and only after receiving the ACK in reply to our SYN/ACK can we
start assuming that the previous packets were good..
All IMHO.... Nice find and a good read for anyone..
I am CC'ing the netfilter list as they might like the read.. in case they
haven't read it. (Surprised I haven't seen more discussion on this topic)
On Thu, 21 Dec 2000, Mike OConnor wrote:
> Hi
>
> I would like to point who ever is in charge of the TCP stack for the linux
> kernel at a site which claims to have a method of eliminate denial of
> service (DoS) attacks
>
> http://grc.com/r&d/nomoredos.htm
>
> With my limited unstanding of TCP and DoS attacks this would seem to be the
> answer, instead of a work around.
>
--
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Michael Peddemors - Senior Consultant
Unix Administration - WebSite Hosting
Network Services - Programming
Wizard Internet Services http://www.wizard.ca
Linux Support Specialist - http://www.linuxmagic.com
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(604) 589-0037 Beautiful British Columbia, Canada
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next prev parent reply other threads:[~2000-12-22 3:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-22 2:24 Mike OConnor
2000-12-22 2:00 ` David S. Miller
2000-12-22 4:20 ` Michael Peddemors
2000-12-22 4:53 ` David S. Miller
2000-12-22 2:36 ` Tom Vier
2000-12-22 4:09 ` Michael Peddemors [this message]
2000-12-22 4:55 ` Michael H. Warfield
2000-12-22 18:21 ` kuznet
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