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Re: Registrars and the WHOIS

From: Len Conrad
Date: Saturday, October 11, 2003
Time: 9:49:13 am


>Why do some registrars ask you for a Ip when registering a domains NS's,
>most seem to not, but a few do, I never understood this.

You can't delegate a domain (ie, make it a zone) to an NS if the NS is not
already "host registered" with the DNS authoritative for the parent zone.
"Registering a host" with a parent defines the registered host's A record,
aka glue record, to be added the parent zone file:

ns.domain.com. A ip.ad.re.ss

So any program accepting domain delegation data can/should easily query the
parent zone for the A record of ns.domain.com. There is no need for the
registrant to enter the IP of the delegated NS.

>If I am going to move my Primary NS to a new IP, I plan on keeping 2 DNS
>servers up for a period of time, I will have my old primary and my new
>primary

drop such usage, it's misleading, and indicates you are probably already
mislead, :)) There is no such thing as primary server, only a primary
master for a zone.

>, go into my registrar control panel and update the IP of the NS, is
>this pretty much the best way to deal with this?

it's the ONLY way to change the registered host's A record.

>I should not have to have
>customers make any changes to any registered domain names?

no, as long as the delegation data for their domains remains unchanged.

> Strange thing is
>the I can not seem to see where I can update the IP of the NS with my
>registrar, would this just happen automatically?

uh, you better hope not. You have to find registrar's "host registration"
page, which is probably called something else, since rather than stick with
the precise jargon, a lot of web page authors just make up words, hoping
synonymity, as they go along.

>When I register a domain name, I am asked to enter in my 3 NS's, I enter
>them in order, yet when I look at the whois, they are out of order, almost
>always...

whois records have nothing to do with DNS records. two different protocols
and two different services.

DNS servers determine the order of the records in the DNS response packets
(not whois database order) when read from zone data or from cache data.

> How can I get the real correct and true order?

there is no such order

Len




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