Yet another changing-my-name-server's-ISP question

[Mark_Andrews at 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?
> >
> > 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?
> >
> > Also, how does one get a glue record changed?
> > Can I just make a name server change with my
> > domain1.com registrar?
> >
> > I just need to know whether I need to
> > make 40 changes, 1 change, or some other number.
> >
> > TIA.
> 
> >            You should only need to update the host record for nameserver
> >            in the zone that is the parent for the nameserver.
> 
> >            Mark
> 
> If the name server for "domain1.com" is "ns1.sub.domain1.com"
> then I will obviously need to change the A record for
> "ns1" in "sub.domain1.com"'s zone file and the NS record
> in "domain1.com"'s zone file.
> 
> But what would the glue record for "domain1.com"
> look like in the "com" zone file?
> 
> Would the NS record in "com"'s zone file be:
> domain1                 IN    NS    ns1.sub.domain1.com.
> with a glue of:
> ns1.sub.domain1.com     IN    A     a.b.c.d

	Yes
> 
> Which would require that I get the glue record changed(?)

	Yes.
> 
> 
> TIA
> 
> 
> 
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org