[dns-operations] NXDOMAIN plus CNAME answer - works sometimes!?

[tjw ietf]

They appear to have fixed this (from my viewpoint)

On Thu, Mar 22, 2018 at 12:09 PM, Roy Arends <roy at dnss.ec> wrote:

>
> > On 22 Mar 2018, at 15:48, James Stevens <James.Stevens at jrcs.co.uk>
> wrote:
> >
> > But "amazonaws.com" /does/ exist, so surely authority from the COM zone
> /alone/ can't be cited to say the CNAME doesn't exist?
>
> Indeed.
>
> ns7.markmonitor.com is configured to be authoritative for _a_ com zone,
> not _the_ com zone. This server is misconfigured to do stupid DNS tricks.
>
> Roy
>
>
>
> >
> >
> > On 22/03/18 14:28, Roy Arends wrote:
> >> The ns7.markmonitor.com server has been configured to respond
> authoritatively for the com zone and for the cgma.org zone.
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