[dns-operations] using different DNS providers together

Steven Carr sjcarr at gmail.com
Thu Nov 15 14:27:36 UTC 2012

You're confusing the zone registration with the zone resource records.

When you register a zone yes you specify the name servers which are
hosting that zone and then the glue in TLD is added accordingly.

When you host the zone contents with multiple different providers you
will have to keep it in sync manually, not many support being a
secondary name server to another provider. Very few also allow you to
change the NS records for the zone you are hosting with them, so
whilst the copy of the zone hosted on MyBigISP.com will have their 2-3
nameservers listed in the resource records, the copy of the zone
hosted on MyLittleCDN.net will have their own 2-3 nameservers listed,
and neither hosting provider will list each other. The TLD though will
have both the nameservers for both providers added as glue. So
depending on which hosting provider you query the nameservers from the
other hosting provider will be "stealth" as they are not listed as NS


On 15 November 2012 13:15, Liu Mingxing <lmxhappy at gmail.com> wrote:
> The providers can not intermeddle your choice. When a domain name is
> registered in many providers, they allow users to provide some name servers
> including theirs and other providers' NSs.  The records of name servers are
> transferred to tld name servers of the name. Recursors request some type of
> the name from tld NSs before all records are responded to recursors.  And
> they pick one NS of the name servers listed to continue to request what they
> like so that the authority service providers cannot do something.
> ________________________________
> Liu Mingxing
> From: Steven Carr
> Date: 2012-11-06 17:08
> To: DNS Operations List
> CC: zhanglikun
> Subject: Re: [dns-operations] using different DNS providers together
> On 6 November 2012 08:34, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
>> Why "by hand"? NOTIFY + IXFR is implemented in every name server
>> software, and is standard (.fr has several DNS providers, too, and we
>> certainly do not keep the data consistent by hand).
> The majority of the providers listed do not support being a DNS
> "secondary" using A/IXFR.
> They all expect you to use their own custom DNS management tools for
> managing the domain and expect that you only have it hosted with them,
> I'm not even sure some of the providers would allow you to create
> additional NS records so yes there could be problems in that the glue
> would not match the NS returned by one of the providers, so it would
> appear that some of the NS are stealth.
> Steve
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