Selective forwarding from an internal only name server

Darcy Kevin (FCA) kevin.darcy at
Wed Aug 17 20:41:51 UTC 2016

	Cloudflare has been doing this for a while, so that their customers won't be "limited by the DNS specifications (RFCs)" <rolls eyes>. Having done that, they were compelled to offer another service -- so-called "CNAME flattening" -- to fix the brokenness that's caused by their base offering.


I think Akamai also offers something similar.

									- Kevin

-----Original Message-----
From: bind-users [mailto:bind-users-bounces at] On Behalf Of Barry Margolin
Sent: Wednesday, August 17, 2016 4:34 PM
To: comp-protocols-dns-bind at
Subject: Re: Selective forwarding from an internal only name server

In article <mailman.299.1471461214.15653.bind-users at>,
 "Darcy Kevin (FCA)" <kevin.darcy at> wrote:

> Well, is a CNAME to, so you 
> might need to make arrangements for that to be resolvable as well.

That doesn't seem valid to begin with. The .COM zone has delegation NS records for Having a CNAME record for the same name is wrong.

Barry Margolin
Arlington, MA
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