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From: Gianni Tedesco <gianni@ecsc.co.uk>
To: Roberto Nibali <ratz@drugphish.ch>
Cc: Martin Renold <martinxyz@gmx.ch>, linux-kernel@vger.kernel.org
Subject: Re: [patch] tcp connection tracking 2.4.19
Date: 09 Oct 2002 13:30:55 +0100	[thread overview]
Message-ID: <1034166655.30384.13.camel@lemsip> (raw)
In-Reply-To: <3DA348EF.7060709@drugphish.ch>

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On Tue, 2002-10-08 at 22:06, Roberto Nibali wrote:
> Welcome to the world of almost-stateful packet filtering. Hey, other 
> than that, the 3wahas 'exploit' is old. Also don't I understand why they 
> claim that SYN cookies prevent syn flooding. Next time you meet someone 
> of the guys, tell them about the backlog queue.
> 

"When syncookies are enabled the packets are still answered  and  this
value [tcp_max_syn_backlog] is effectively ignored." -- From tcp(7)
manpage.

The whole point of syncookies is to negate the need for a backlog queue.

Or did I miss your point?

-- 
// Gianni Tedesco (gianni at ecsc dot co dot uk)
lynx --source www.scaramanga.co.uk/gianni-at-ecsc.asc | gpg --import
8646BE7D: 6D9F 2287 870E A2C9 8F60 3A3C 91B5 7669 8646 BE7D

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  reply	other threads:[~2002-10-09 12:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-08 20:50 [patch] tcp connection tracking 2.4.19 Martin Renold
2002-10-08 21:06 ` Roberto Nibali
2002-10-09 12:30   ` Gianni Tedesco [this message]
2002-10-09 17:25     ` Roberto Nibali
2002-10-10 10:38       ` Gianni Tedesco
2002-10-10 18:06         ` Roberto Nibali
  -- strict thread matches above, loose matches on Subject: below --
2002-10-16  7:48 Martin Renold
2002-10-16 22:46 ` Harald Welte
2002-10-17 20:29   ` Martin Renold
2002-10-17  8:26 ` Svenning Sorensen
2002-10-17  8:53   ` Martin Renold

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