Yet another changing-ISPs-for-my-name-server question

[Mark Damrose]

"Glenn Schmid" <glenn.schmid at sunysb.edu> wrote in message
news:ao1lvc$48eh$1 at isrv4.isc.org...
>
> I'm hosting about 40 domains on my name server,
> and we will be switching ISPs shortly, so the
> name server's IP will be changing.
>
> If, for example my domains are:
>
> domain1.com
> domain1.net
> domain1.org
> domain2.com
> domain3.com
> domain4.com
> etc...
>
> and the name server for all of them is
> ns1.sub.domain1.com, how many
> registrar-level changes do I need to make
> assuming the FQDN of the name server
> stays the same and only the IP is changing?
>
> Would there be one glue record in the .com zone
> for "ns1.sub.domain1.com" which would cover
> all 40 domains that I need to change?

Yes.

>
> May I assume that the .net & .org zones don't have
> a glue record for my .net & .org domains if
> the NS is under .com?

In general yes, but in this case, .com .net and .org are served by the same
servers so the same glue would be returned with all of them.

>
> Also, how does one get a glue record changed?
> Can I just make a name server change with my
> domain1.com registrar?

That's the only way you can get it changed.

>
> I just need to know whether I need to
> make 40 changes, 1 change, or some other number.

1

>
> TIA
>
>
>