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Re: Advanced tricks I use to get rid of spam using MX 4xx

To: Harald Hanche-Olsen <hanche@math.ntnu.no>
Subject: Re: Advanced tricks I use to get rid of spam using MX 4xx
From: prj@po.cwru.edu (Paul Jarc)
Date: Mon, 27 Nov 2006 19:09:43 -0500
Cc: qmail@list.cr.yp.to
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In-reply-to: <20061127.205358.137068445.hanche@math.ntnu.no> (Harald Hanche-Olsen's message of "Mon, 27 Nov 2006 20:53:58 +0100 (CET)")
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References: <45686D69.5040003@perkel.com> <20061127143127.GA29898@discworld.dyndns.org> <456B03BA.1060303@perkel.com> <20061127.205358.137068445.hanche@math.ntnu.no>
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Harald Hanche-Olsen <hanche@math.ntnu.no> wrote:
> Are there Unix variants that will let you decide in userland what to
> do about an incoming SYN?

It could be done by manipulating firewall rules, although that's
hardly convenient.


paul

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