From: Andreas Unterkircher <unki@netshadow.at>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] passive FTP trafic control
Date: Fri, 11 Nov 2005 21:20:52 +0000 [thread overview]
Message-ID: <43750B34.9010409@netshadow.at> (raw)
In-Reply-To: <20051111132016.5299021b@pulsar.inexo.com.br>
You could try to match on helper within iptables. Should be something like
iptables -A FORWARD --match conntrack --ctproto tcp --ctstate
RELATED,ESTABLISHED --match helper --helper ftp -j CLASSIFY ....
Perhaps this will match your data channel.
Cheers,
Andreas
DervishD wrote:
> Hi Ethy :)
>
> * Ethy H. Brito <ethy.brito@inexo.com.br> dixit:
>
>
>>How to make shure that only FTP RELATED packets will be CLASSIFY'ed??
>>
>>
>
> I can only suggest that you limit the source ports available to
>passive FTP. In my FTP server this can be configured, but probably in
>other servers you can do it too. Once you do this, it's quite easy to
>setup a "tc filter" to mark packages (or iptables if you prefer).
>
> Raúl Núñez de Arenas Coronado
>
>
>
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next prev parent reply other threads:[~2005-11-11 21:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-11 15:20 [LARTC] passive FTP trafic control Ethy H. Brito
2005-11-11 20:38 ` DervishD
2005-11-11 21:20 ` Andreas Unterkircher [this message]
2005-11-17 21:46 ` Piotr Chytla
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