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Date:      Fri, 25 May 2001 14:49:37 -0700
From:      Joe Gross <jgross@stimpy.net>
To:        FreeBSD Security <freebsd-security@FreeBSD.ORG>
Subject:   Re: 'nother IPFW question
Message-ID:  <20010525144937.A60462@felix.stimpy.net>
In-Reply-To: <200105251920.f4PJK6L42034@earth.backplane.com>; from dillon@earth.backplane.com on Fri, May 25, 2001 at 12:20:06PM -0700
References:  <3B0EA2AE.5B00EB2@gmx.net> <200105251828.f4PIS1Y41320@earth.backplane.com> <20010525194056.A19706@gattaca.yadt.co.uk> <200105251920.f4PJK6L42034@earth.backplane.com>

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On Fri, May 25, 2001 at 12:20:06PM -0700, Matt Dillon wrote:
> 
>     I usually do not run identd, but I usually do allow the service
>     through the firewall so the server not running it can respond with a
>     TCP reset.  Otherwise remote sendmails using auth will stall trying
>     to send email to you for ~30 seconds.  Alternatively the firewall can
>     be programmed to return an ICMP error itself, but I try to avoid
>     having the firewall do actual work to make it more resistent to DOS
>     attacks.

Augh! Why wouldn't you just have the firewall refuse the connection? It's a
bad idea to pass anything through your firewall that you don't want on your
internal network.


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