From: "Jörg Harmuth" <harmuth@mnemon.de>
To: netfilter@lists.netfilter.org
Subject: Re: port filtering
Date: Thu, 02 Jun 2005 17:30:17 +0200 [thread overview]
Message-ID: <429F2609.8080809@mnemon.de> (raw)
In-Reply-To: <1117724394.13839.14.camel@fly.in.iantel.com.uy>
Hi,
Eduardo Spremolla schrieb:
> I suppose you have a firewall that allow outgoing traffic on port 21 ?
> or is incoming?
>
> Any way you can't tell if the traffic on port 21 if ftp , telnet or http
> without looking a hi layers protos. Don't know of any support for that
> in netfilter. May be you need to setup a transparent proxy.
>
May be this is of use:
http://l7-filter.sourceforge.net/L7-HOWTO-Netfilter
Have a nice time,
Joerg
next prev parent reply other threads:[~2005-06-02 15:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-02 14:40 port filtering Sadus .
2005-06-02 14:59 ` Eduardo Spremolla
2005-06-02 15:30 ` Jörg Harmuth [this message]
2005-06-02 15:18 ` Taylor, Grant
2005-06-02 15:58 ` Sadus .
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