[isp-dns] How to get GTLD servers to recognize a new IP address for a nameserver

["R. Scott Perry" <horizons@...]

I know this is asked occasionally, but I can't seem to find the 
answer.  I've actually had 3 people come to me this week that were confused 
why the A record for some hostname they have wasn't getting updated weeks 
after the change was made, and in all the cases it was because the hostname 
was one that the GTLD servers have listed as an NS record for some domains.

My question, then, is how to get the GTLD servers to use the updated IP 
address?  I've referred these people to the registrars of their domains, 
but what if they use Registrar A, but Registrar B is the one that lists 
this hostname as an NS record (as would be the case with a lame delegation)?
                                -Scott

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