On Sun, 28 Oct 2001, Andre Cameron wrote:
> Does anyone know of a registrar who would let me register a host name to a
> domain name verses an IP? Odd request I know but heres the story. I have
> a dynamic IP which blows, I use dyndns.org's service to keep a domain name
> pointed to my server. Now I obviosly cant point a hostname to my IP cause
> it could change anytime. SOOO if I point a hostname to my static domain
> name I could then use my DNS server;) Nifty idea huh? Now if only I can
> find a registrar who let me do this.. Any ideas?
>
> Andre
>
When you regester a domain name, you are not realy regestering it to an
IP address. You are regestering the name, and pointers to the name
servers that will resolve the name to an IP address. You are required
to have at least 2 name server for the domain, at least with the
regesters I have delt with. The name servers also need to be
regestered, but that is not a big problem. You do not have to talk to
the regester to change the IP of a domain, just change what the name
servers report.
To give you an idea, if for some reasion the IP address for
infinity-ltd.com was to change, the only thing necessary would be to
change the zone records on the name servers. (Unless I change ISPs,
because my ISP is providing the name server right now.) Right now, I
have infinity-ltd.com, and www.infinity-ltd.com, but if I wanted to add
something like mail.infinity-ltd.com, it would only take an addition to
the zone record on the name servers. It would not even have to be an IP
address in the same netblock as the current IPs. It would not require
me to regester anything, because of the way host names are looked up.
When you look up a host name, the name is looked up in reverse order.
So, for mail.infinity-ltd.com, you ask the root servers for the IP of
the name server for infinity-ltd.com. You then ask that name server for
the IP address of mail.infinity-ltd.com. (In the case of
mail.infinity-ltd.com, it says that it is an invalid name...)
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
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