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List: pdns-users
Subject: Re: [Pdns-users] Don't return dereferenced CNAMEs
From: "Peter van Dijk" <peter.van.dijk () powerdns ! com>
Date: 2015-06-09 8:20:39
Message-ID: C4A42BC0-03FD-4DE8-BEF8-C3F16F68E2A0 () powerdns ! com
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Hello Mark,
On 8 Jun 2015, at 23:51, Mark Moseley wrote:
> I'm curious if there's a setting to tell powerdns not to be helpful
> and
> return the dereferenced CNAME.
No - truncating alias chains is wrong and can cause resolution failures
in conforming resolvers.
> The reasons for why it'd happen in our setup are annoying and I don't
> want
> to go into it :)
Please do try to explain, it is the only way we can help!
> I've tried setting out-of-zone-additional-processing to 'no' but that
> doesn't seem to change anything.
Additional processing is, indeed, not about CNAMEs, but about adding
A/AAAA records to the ADDITIONAL section of the response, for MX records
for example.
Kind regards,
--
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/
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