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Date:      Sat, 26 Nov 2011 20:26:59 +0100
From:      Moritz Wilhelmy <moritz@wzff.de>
To:        freebsd-questions@freebsd.org
Subject:   Re: Disable automatic "Fallback" IP on 9.0-RC2 when a hostname cannot be resolved
Message-ID:  <20111126192659.GS16096@barfooze.de>
In-Reply-To: <20111126154422.GR16096@barfooze.de>
References:  <20111126154422.GR16096@barfooze.de>

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Hi,

Nope, it's not my DNS provider. I checked that.

On the furnace.wzff.de jail:
# cat /etc/resolv.conf 
# Generated by resolvconf
nameserver 213.133.98.98
nameserver 213.133.99.99
nameserver 213.133.100.100
# host foo1
Host foo1 not found: 3(NXDOMAIN)
# grep foo1 /etc/hosts
# telnet foo1 25
Trying 178.63.197.15...
Connected to wzff.de.
Escape character is '^]'.
220 wzff.de ESMTP Exim 4.72 Sat, 26 Nov 2011 20:18:45 +0100
QUIT
221 wzff.de closing connection
Connection closed by foreign host.

Same thing on the mail.wzff.de jail:
# telnet foo1 25
Trying 178.63.197.15...
Connected to wzff.de.
Escape character is '^]'.

jabber.barfooze.de:
# telnet fu1 25
Trying 78.46.117.212...
Connected to fu1.barfooze.de.
Escape character is '^]'.
220 barfooze.de ESMTP Exim 4.76 Sat, 26 Nov 2011 20:25:57 +0100

Interestingly, on this jail it connects to a subdomain.

I tried telnet and irssi, and both of them do this, so it's probably not
an application bug either. Any hints where else I should look?


Best regards,

Moritz



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