IDS mailing list archives
Re: TCP: a practical question
From: John Kinsella <jlk () thrashyour com>
Date: Thu, 31 Jan 2008 12:36:43 -0800
Hi Ashley - I remember Dan Kaminsky talking about implementing this with Anyron at CodeCon 2002, I'm not sure if it ever saw the light of day, though... http://www.codecon.org/2002/program.html#gateway John On Thu, Jan 17, 2008 at 04:55:56PM -0500, snort user wrote:
Greetings. Normally TCP connection establishment is a three packet sequence. C -> S (Syn) S -> C (Syn|Ack) C -> S (Ack) TCP specification (rfc 793) mentions about a simultaneous open and it's use in distributed set ups. In this case the handshake would proceed as follows: C -> S (Syn) .. 1 S -> C (Syn) .. 2 (1 and 2 happends almost simultaneously) C -> S (Syn|Ack) S -> C (Syn|Ack) My question is do we see this behavior in the practical world ? Thanks Ashley ------------------------------------------------------------------------ Test Your IDS Is your IDS deployed correctly? Find out quickly and easily by testing it with real-world attacks from CORE IMPACT. Go to http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=intro_sfw to learn more. ------------------------------------------------------------------------
------------------------------------------------------------------------ Test Your IDS Is your IDS deployed correctly? Find out quickly and easily by testing it with real-world attacks from CORE IMPACT. Go to http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=intro_sfw to learn more. ------------------------------------------------------------------------
Current thread:
- Re: TCP: a practical question John Kinsella (Feb 01)