From: Stef Coene <stef.coene@docum.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] layer-7 filtering is possible in linux ?
Date: Fri, 02 May 2003 17:05:32 +0000 [thread overview]
Message-ID: <marc-lartc-105189586511043@msgid-missing> (raw)
In-Reply-To: <marc-lartc-105189230406660@msgid-missing>
On Friday 02 May 2003 17:58, openings wrote:
> Dear folks
>
>
> With U32 filter, I can filter packets with it's packet header.
>
> In linux, I wonder if Layer-7 filtering is possible.
>
> I want to filter packets that include specific pattern in it's payload(not
> header, data part).
>
> ex) Packets that include "aaa.exe" text pattern in it's data part.
>
> If it is possible, mail traffic that include specific text pattern can be
> filtered.
>
> I thought that above function is very useful.
>
> In Linux, is it possible?
Iptables can filter based on text in a packet. At the same time, you can mark
the packet and that mark can be used with the fw filter.
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.oftc.net
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next prev parent reply other threads:[~2003-05-02 17:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-02 15:58 [LARTC] layer-7 filtering is possible in linux ? openings
2003-05-02 17:05 ` Stef Coene [this message]
2003-05-02 17:41 ` Craig Kelley
2003-05-02 17:54 ` Logu
2003-05-05 3:49 ` Ethan Sommer
2003-05-05 5:40 ` james jones
2003-05-22 19:33 ` N N Ashok
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