From: "Michael Fernández M" <michael@michael.cl>
To: casper@meteor.dp.ua
Cc: netfilter@vger.kernel.org
Subject: Re: Filter by Packet's size
Date: Mon, 18 Feb 2008 10:59:00 -0300 [thread overview]
Message-ID: <1203343140.2366.22.camel@amokk.microserv.cl> (raw)
In-Reply-To: <1203341778.18561.2.camel@localhost>
On Mon, 2008-02-18 at 15:36 +0200, Покотиленко Костик wrote:
> В Пнд, 18/02/2008 в 09:25 -0300, Michael Fernández M пишет:
> > Hi,
> >
> > Is there a way to filter a picket by the size of it?, i mean I Would
> > like to filter all the packet hat it size 2 MB.
> >
> > Is that possible?
> >
> > Thanks to any answer.
>
> iptables -m length --length 0:1024
>
> But let me admit that normal packet length is up to 1500 bytes, in some
> cases up to 65535 bytes. Maybe you didn't correctly face the question?
>
Yea, i know... but the thing is:
I have a mail server (Postfix), and if I restrict the size of messages
up to 2 MB.. then a user send an email (3 MB) and Postfix receive the
message an then say: "You cannot send this message because of the
size"... and send a notification to the user... so I want to stop the
packets before them arrives to Postfix... and take off this load to the
mail server...
Now is better explain?
Regars,...
Michael.-
next prev parent reply other threads:[~2008-02-18 13:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-18 12:25 Filter by Packet's size Michael Fernández M
2008-02-18 13:36 ` Покотиленко Костик
2008-02-18 13:59 ` Michael Fernández M [this message]
2008-02-18 14:32 ` Покотиленко Костик
2008-02-18 14:41 ` Michael Fernández M
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