From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Marco <listaddr@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: conntrackd questions
Date: Mon, 25 Feb 2013 16:45:32 +0100 [thread overview]
Message-ID: <20130225154532.GD20561@localhost> (raw)
In-Reply-To: <CAHPDOiEvpU1hEKkNJMpUrxJP6Lb=9pKDsEbMjqbr7DWKyZt_Ew@mail.gmail.com>
On Fri, Feb 22, 2013 at 11:12:55AM +0100, Marco wrote:
[...]
> > In your previous config, assuming you use a 3.x kernel, I saw you did
> > not enabled TCPWindowTracking On. That allows the new primary to
> > recover TCP window tracking from the middle.
>
> Unfortunately, the system where this will run has a 2.6.32 kernel, so
> this is not an option for the moment.
I really recommend you to upgrade to some stable branch of 3.x. Many
relevant updates and fixes went into the ctnetlink code since that
version you're using.
[...]
> Well, the docs mention window tracking here and there, but (at least
> to me) it's not clear what that does, and that it's (or could be) the
> solution to this problem I'm seeing.
> Furthermore, I found no documentation or explanation of
> nf_conntrack_tcp_be_liberal on google, neither it is in the sysctl.txt
> file that documents the /proc/sys/net entries, nor anywhere else.
http://git.kernel.org/?p=linux/kernel/git/davem/net-next.git;a=blob;f=Documentation/networking/nf_conntrack-sysctl.txt;h=70da5086153dbd24a9c9258e73cc16440d247519;hb=HEAD
Regards.
next prev parent reply other threads:[~2013-02-25 15:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-19 14:18 conntrackd questions Marco
2013-02-19 19:52 ` Pablo Neira Ayuso
2013-02-21 10:14 ` Marco
2013-02-21 12:23 ` Marco
2013-02-21 18:37 ` Pablo Neira Ayuso
2013-02-22 10:12 ` Marco
2013-02-25 15:45 ` Pablo Neira Ayuso [this message]
2013-03-06 10:54 ` Marco
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