If the IP addresses of the DNS servers (dns[123].olddomain and dns[123].newdomain) are staying the same - then you only need to send an update to change your domain from being hosted at olddomain to newdomain. Ideally, the newdomain would be created first (pointing to the same IP addresses as in olddomain) in the Registry, then after a day or two, have the olddomain in the Registry deleted - but it shouldn't really matter.

People who are looking for DNSSEC records will still go to the correct places - because the IP addresses at those places are not changing.

On 2023/02/13 17:58, Danilo Godec via bind-users wrote:
Hello,


in the near future I will have to change NS records for one of my domains, as DNS servers currently use an old domain (not mine), that will be phased out. DNS servers will actually remain the same, only the domain name will change.

So, basically:

  * mydomain currently uses dns1.olddomain, dns2.olddomain,
    dns3.olddomain, ...
  * dns*.olddomain are the same servers as dns*.newdomain
  * mydomain has to change DNS server to dns1.newdomain,
    dns2.newdomain, dns3.newdomain, ...



Since DNSSEC is enabled on mydomain, I've been reading some instructions about doing this with DNSSEC and they say:

1. Disable DNSSEC at Registrar
2. Wait 24 hours
3. Disable DNSSEC at Name Server (remove DS-records)
4. Switch name servers
5. Wait 24 hours
6. Re-enable DNSSEC

I personally prefer,

Create the Domain on the new nameservers, sign it, send the new DS record to the Registry. This probably means loading the DS record via the old (existing) Registrar. Wait 24 hours (propagation time) then update (swap) the Nameservers at the Registry to the new Nameservers.
Wait a day or two then remove the domain from the old servers.
As long as one of the DS records matches the DNSKEY on either the old or new Nameservers - DNSSEC should validate.

The problem is - not many Registrars allow a foreign DS record to be loaded in their system for uploading to the Registry. I do allow the client to do this. Don't think it has ever happened though.




Is this really necessary in this case, changing only DNS server names? I would like to avoid changing DS records at the registrar level as they don't provide a 'self-service' interface for managing them, so I have to go though their support and that's usually tedious.

If that is necessary, why?


   Thanks, Danilo

PS: If it matters, this is (still) a manually DNSSEC'd domain.

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Mark James ELKINS  -  Posix Systems - (South) Africa
m...@posix.co.za       Tel: +27.826010496 <tel:+27826010496>
For fast, reliable, low cost Internet in ZA: https://ftth.posix.co.za <https://ftth.posix.co.za>

Posix SystemsVCARD for MJ Elkins

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