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Date:      Mon, 18 Nov 1996 10:49:48 +0300 (MSK)
From:      "=?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?=" (Andrey A. Chernov) <ache@nagual.ru>
To:        marcs@znep.com (Marc Slemko)
Cc:        freebsd-security@FreeBSD.org
Subject:   Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2).
Message-ID:  <199611180749.KAA00591@nagual.ru>
In-Reply-To: <Pine.BSF.3.95.961117211243.223A-100000@alive.ampr.ab.ca> from "Marc Slemko" at "Nov 17, 96 09:18:29 pm"

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> Incorrect.  Sendmail still attempts a lookup for something, I think it is
> the local hostname, for each piece of mail it processes.  Last I checked,
> this could NOT be disabled without recompiling sendmail.  Modifying your
> config file or adding a service.switch file does not stop it.

Of course you must use
FEATURE(nocanonify)
FEATURE(nodns)
in addition to /etc/service.switch, I just not mention obvious things.

> On Mon, 18 Nov 1996, [KOI8-R] Андрей Чернов wrote:
> 
> > > Sendmail's support of UUCP isn't wonderful (mostly a problem of
> > > getting DNS totally disabled).  How well does qmail support UUCP?
> > 
> > It is possible to totally disable DNS via
> > 
> > /etc/service.switch:
> > # To disable DNS search for sendmail
> > hosts files

-- 
Andrey A. Chernov
<ache@nagual.ru>
http://www.nagual.ru/~ache/



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