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Subject: Re: address not listed for hostname warning
From: Wietse Venema (wietseporcupine.org)
Date: Thu Feb 17 2000 - 06:46:12 CST

Some software can't deal with more than one IP address per host;
some people misconfigure their DNS so that PTR records have no
matching A record.

For debugging the first problem, you can play with the files in
README.NIS (attached) from the tcp wrappers source distribution.

        Wietse

Ralf Hildebrandt:
> Hi!
>
> For some hosts I get the following messages in the log:
>
> Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: warning: 132.231.1.200: address not listed for hostname dodgers.fmi.uni-passau.de
> Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: connect from unknown[132.231.1.200]
> Feb 16 09:25:04 vivaldi postfix/smtpd[22781]: 9A84730C01: client=unknown[132.231.1.200]
>
> dodgers.fmi.uni-passau.de. 2d11h21s IN A 132.231.10.1
> dodgers.fmi.uni-passau.de. 2d11h21s IN A 132.231.1.200
>
> 1.10.231.132.in-addr.arpa. 1d11h14s IN PTR dodgers.fmi.uni-passau.de.
> 200.1.231.132.in-addr.arpa. 3H IN PTR dodgers.fmi.uni-passau.de.
>
> and
>
> Feb 16 16:53:21 vivaldi postfix/smtpd[28108]: warning: 141.2.20.2: address not listed for hostname hera.rbi.informatik.uni-frankfurt.de
> Feb 16 16:53:21 vivaldi postfix/smtpd[28108]: connect from unknown[141.2.20.2]
> Feb 16 16:53:22 vivaldi postfix/smtpd[28108]: 372E430C02: client=unknown[141.2.20.2]
>
> hera.rbi.informatik.uni-frankfurt.de. 7h4m18s IN A 141.2.1.1
> 1.1.2.141.in-addr.arpa. 1D IN PTR hera.rbi.informatik.uni-frankfurt.de.
>
> While this happens frequently with the first box (dodgers), I first thought
> this might be due to the two IP adresses.
>
> --
> Ralf Hildebrandt <R.Hildebrandttu-bs.de> www.stahl.bau.tu-bs.de/~hildeb
> From empirical experience, your Exchange admin needs to put down the
> crack pipe and open a window to disperse the fumes.
>
>
>
>
>