>
> Hello,
>
> I have two nameserver:
>
> ns1.example.com 10.10.10.10
> ns2.example.com 20.20.20.20
>
> I have a fair number of customers that have us do all dns for them, and
> thus, those two nameservers (those names _and_ those IPs) are what they
> configure for their domains at their registrars (like network solutions).
>
> ---
>
> My Isp has informed me that I need to change my IP addresses to some new
> ones they got. So eventually, I should have:
>
> ns1.example.com 192.168.0.1
> ns2.example.com 192.168.0.2
>
> Which is all fine and good, but how do I do the transition ?
>
>
> The reason I am confused is that the registrars (like network solutions)
> ask you to put in the name _and_ the IP for the nameservers your domain
> uses. So, if I simply change them, while ns1.example.com may well resolve
> to the new IP, my customers have the old IP in their registrar even though
> they have the right name.
>
> I don't have a ton of customers, but I have too many to be able to simply
> say "change your dns settings at 2:14pm on wednesday", which is what it
> seems like I have to do ... because if I tell them they are going to
> change, and they change them ahead of time, even if I have all four
> nameservers running at once (for an overlapping period) there is always a
> mismatch between the name and the IP at their registrar.
>
> Unless of course I simply switch them and then they switch them as well on
> their registrar, but this _implies_ downtime for them, between the time
> that I switch things to the time that they switch them at their registrar.
>
> So what is the elegant solution ?
>
> thanks!
All you need to do is update the host records for the nameservers
to have the new IP addresses.
The registrars as for both name and address because it is simpler.
The name is always needed. The IP address is sometimes needed.
The only data that will be entered into the DNS is that from the
host records that you control.
Mark
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews@xxxxxxx
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