CNAME records in place of A records
Mark Andrews
marka at isc.org
Mon Nov 9 05:40:12 UTC 2020
> On 9 Nov 2020, at 16:35, Matt Palmer <mpalmer at hezmatt.org> wrote:
>
> On Sun, Nov 08, 2020 at 08:01:12PM -0500, Rob McEwen wrote:
>> except - don't forget that the root of a domain (that domain without "www."
>> or any other label) - cannot have a CNAME as the "A" record - fwiw...
>
> Yes. I didn't think that was something that needed to be explained on NANOG,
> though.
Given the number of ISPs (and others) that ask ISC to support CNAME at the APEX
to whom we have to politely say:
“No. It is not permitted by this part of RFC 1034.”
<quoted text>
It’s well worth reiterating.
> - Matt
>
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
More information about the NANOG
mailing list