From: Jiann-Ming Su <sujiannming@gmail.com>
To: netfilter@lists.netfilter.org
Subject: Re: connection tracking without iptables?
Date: Thu, 14 Oct 2004 14:31:11 -0400 [thread overview]
Message-ID: <561dc326041014113163a6a9eb@mail.gmail.com> (raw)
In-Reply-To: <1096587270.22962.24.camel@wolfpack.ljm.dom>
On Thu, 30 Sep 2004 19:34:30 -0400, Jason Opperisano <opie@817west.com> wrote:
>
> egrep 'ESTABLISHED|ASSURED' /proc/net/ip_conntrack | wc -l
>
We're finding that any read operation on /proc/net/ip_conntrack really
locks the system until that operation is completed. That is, it's
almost as if the read prevents any writes, so the firewall locks up
momentarily until the read is done. Is there a less system intensive
way to read ip_conntrack? Or, is my observation completely wrong?
--
Jiann-Ming Su
"I have to decide between two equally frightening options.
If I wanted to do that,
I'd vote." --Duckman
next prev parent reply other threads:[~2004-10-14 18:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-30 18:19 connection tracking without iptables? Daniel Chemko
2004-09-30 18:26 ` Jason Opperisano
2004-09-30 23:04 ` Jiann-Ming Su
2004-09-30 23:34 ` Jason Opperisano
2004-10-14 18:31 ` Jiann-Ming Su [this message]
2004-10-14 18:57 ` Jason Opperisano
2004-10-15 5:16 ` Kiran Kumar Immidi
2004-10-16 12:30 ` Jose Maria Lopez
2004-10-25 20:48 ` Aleksandar Milivojevic
-- strict thread matches above, loose matches on Subject: below --
2004-09-30 23:20 Daniel Chemko
2004-09-29 21:22 Daniel Chemko
2004-09-30 2:24 ` Jiann-Ming Su
2004-09-29 20:50 Jiann-Ming Su
2004-09-29 20:57 ` Alexis
2004-09-29 21:01 ` Jason Opperisano
2004-09-29 21:37 ` Jose Maria Lopez
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