From: "Gáspár Lajos" <swifty@freemail.hu>
To: Michal Martinek <michal.martinek@siemens.com>
Cc: netfilter@lists.netfilter.org
Subject: Re: netfilter_queue: how to obtain address info from queued packet
Date: Tue, 23 Jan 2007 11:27:45 +0100 [thread overview]
Message-ID: <45B5E321.90608@freemail.hu> (raw)
In-Reply-To: <45B5E0DC.2020703@siemens.com>
Michal Martinek írta:
>
>
> Gáspár Lajos wrote:
>>
>> Michal Martinek írta:
>>> Hello all,
>>>
>>> I am quite a newbie to the netfilter world, so maybe my approach is
>>> naive. I would like to block communication coming from/to some ports
>>> according to the content of packets. Unfortunately these ports are
>>> not static, so port specific netfilter rule cannot be used. So my
>>> question is:
>>>
>> Do you know the STRING module ?
>
> I'm afraid not. Can you give me some explanation (or link)?
Well... :) man iptables...
iptables -A FORWARD -j DROP -p tcp -m string --string 'Some string'
--algo kmp
>
>>> Is it possible to obtain some address info (source/destination
>>> address and ports) from the packet queued from netfilter?
>
>
next prev parent reply other threads:[~2007-01-23 10:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-23 10:03 netfilter_queue: how to obtain address info from queued packet Michal Martinek
2007-01-23 10:10 ` Gáspár Lajos
2007-01-23 10:18 ` Michal Martinek
2007-01-23 10:27 ` Gáspár Lajos [this message]
2007-01-23 10:40 ` Michal Martinek
2007-01-23 11:49 ` Gáspár Lajos
2007-01-23 10:31 ` Cedric Blancher
2007-01-23 11:53 ` Michal Martinek
2007-01-23 12:33 ` Cedric Blancher
2007-01-23 12:50 ` Michal Martinek
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