From: "Marcin Mirosław" <marcin@mejor.pl>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: netfilter@vger.kernel.org
Subject: Re: [xtables-addons] memory usage in module geoip (probably)
Date: Sun, 22 Jan 2012 21:38:51 +0100 [thread overview]
Message-ID: <4F1C73DB.5060503@mejor.pl> (raw)
In-Reply-To: <alpine.LNX.2.01.1201202156410.13241@frira.zrqbmnf.qr>
W dniu 2012-01-20 22:00, Jan Engelhardt pisze:
> TARPIT does not have much of a use for random ports without any services
> because it is specific to clients sending data. You should use DELUDE at
> the end of the chain, also because it does not keep any connections
> around like tarpit.
Hello Jan.
Meseems TARPIT is what i need, i'd like to slow down (a little) bots
looking for mssql and other MS specific soft.
I've made quick test, it looks when TARPIT is in chain then size of all
three slabs (kmalloc-512/2048, skbuff_head_cache) slowly grow up.
Without TARPIT its size is almost constant.
It appears on host:
domU, FV, 3.1.8-hardened (i have such situation since some time, with
older kernels too) , x86_64, xtables-addons-1.37 and 1.39.
Other host doesn't suffer such problem:
bare metal, 3.1.5-hardened, i686, xtables-addons-1.37
How can i track down what is the reason of such situation?
Thank you.
next prev parent reply other threads:[~2012-01-22 20:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-20 16:12 [xtables-addons] memory usage in module geoip (probably) Marcin Mirosław
2012-01-20 17:05 ` Jan Engelhardt
2012-01-20 20:18 ` Marcin Mirosław
2012-01-20 21:00 ` Jan Engelhardt
2012-01-22 20:38 ` Marcin Mirosław [this message]
2012-01-22 20:53 ` Marcin Mirosław
2012-01-24 12:04 ` Jan Engelhardt
2012-10-30 9:56 ` [xtables-addons][solved] " Marcin Mirosław
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4F1C73DB.5060503@mejor.pl \
--to=marcin@mejor.pl \
--cc=jengelh@medozas.de \
--cc=netfilter@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).