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From: Markus Feldmann <feldmann_markus@gmx.de>
To: netfilter@vger.kernel.org
Subject: Re: iptables NEW or SYN
Date: Thu, 13 May 2010 20:45:36 +0200	[thread overview]
Message-ID: <hshhcg$rl3$1@dough.gmane.org> (raw)
In-Reply-To: <AANLkTimpGd4uEnY5UiFQDs1oE6uEji6lbLnUej7eCXoX@mail.gmail.com>

Curby schrieb:
> On Thu, May 13, 2010 at 12:05 PM, Markus Feldmann
> <feldmann_markus@gmx.de> wrote:
>> What are CTs?
> 
> Mebbe Conntrack?  The basic point that Jan's trying to make is that
> NEW/ESTABLISHED/INVALID/RELATED describes packets as they're seen by
> the connection tracking.  It is not necessarily related to whether a
> TCP packet has the SYN flag set.
> 
> If a new and valid ICMP ping packet comes in, it's considered NEW by
> conntrack because it's not associated with any other traffic, not is
> it INVALID.  That's an example of NEW packets that don't have to be
> TCP SYN.
I try an example and you say whether i am right.

If i meet a girl, which i doesnt meet before, than she is NEW.
When i meet a girl every day which, than she is only new at the first 
meet but the meeting is every day a new experience (syn).

Is that correct?

So the state NEW is the sight view of my computer and the syn only 
means, there is a foreign computer which wants to establish a new 
connection.

Ist that right?

If that is right than i need the --syn argument not the state NEW for my 
apache-server.

regards Markus


  reply	other threads:[~2010-05-13 18:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-13 17:08 iptables NEW or SYN Markus Feldmann
2010-05-13 17:18 ` Jan Engelhardt
2010-05-13 17:42   ` Markus Feldmann
2010-05-13 18:00   ` Markus Feldmann
2010-05-13 18:09     ` Markus Feldmann
2010-05-13 20:09       ` Pascal Hambourg
2010-05-13 20:55         ` Markus Feldmann
2010-05-13 18:05   ` Markus Feldmann
2010-05-13 18:19     ` Curby
2010-05-13 18:45       ` Markus Feldmann [this message]
2010-05-13 19:23         ` Mistick Levi
2010-05-13 21:45           ` Markus Feldmann
2010-05-13 22:46             ` Curby
2010-05-14  0:06           ` Markus Feldmann
2010-05-14  0:23             ` Markus Feldmann
2010-05-14  2:19             ` Markus Feldmann
2010-05-14  6:41             ` Jan Engelhardt
2010-05-14 12:16               ` Markus Feldmann
2010-05-14  5:08         ` Mart Frauenlob
  -- strict thread matches above, loose matches on Subject: below --
2010-05-13 13:17 Markus Feldmann
2010-05-13 15:21 ` ratheesh k

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