From owner-freebsd-hackers  Sun May 28  9:56:15 2000
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Date: Sun, 28 May 2000 09:56:45 -0700 (PDT)
From: papowell@astart.com
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To: freebsd-hackers@FreeBSD.ORG, kheuer@gwdu60.gwdg.de
Subject: Re: Connect to lpd on insecure port
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> From owner-freebsd-hackers@FreeBSD.ORG Mon May  8 07:17:19 2000
> Date: Mon, 8 May 2000 16:16:49 +0200 (CEST)
> From: Konrad Heuer <kheuer@gwdu60.gwdg.de>
> To: freebsd-hackers@FreeBSD.ORG
> Subject: Connect to lpd on insecure port
>
>
> Today I did some testing concerning lpd and I was very astonished to see
> that lpd accepts jobs also from insecure ports (violating RFC 1179). It
> does not accept such jobs on 2.1.6-RELEASE (yes, I still have some old 386
> system out there with 2.1.6) but it does on 3.x (and as far as I've seen
> from the code) and 4.x and also on 2.2.6.
>
> Why and when has the behaviour of lpd been changed? I'd like lpd only to
> accept connections from secure ports (do you remember the famous error
> message `Malformed from address'? ;-) )
>
> Thanks for any reply!
>
> Konrad Heuer                                    Personal Bookmarks:
> Gesellschaft für wissenschaftliche
>    Datenverarbeitung mbH GÖttingen              http://www.freebsd.org
> Am Faßberg, D-37077 GÖttingen                   http://www.daemonnews.org
> Deutschland (Germany)
>
> kheuer@gwdu60.gwdg.de
>
>
>
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The LPRng print spooler has this functionality.  You can read the
horrible nasty details about why there is this functionality in the
LPRng HOWTO document in the LPRng distribution.

Patrick Powell


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