On Wed, Jun 09, 2004 at 09:37:20AM -0500, Chris Cox, N0UK wrote:
> On 4 Jun 2004, Tom Penney wrote:
> > Not true. How does the world know where to find your DNS Servers?
> > answer: They check with your registrars DNS server for the ip ddress of
> > your dns servers. If the registrar goes down you are screwed, Period.
> 
> Hmm - maybe I'm out of date here but, I was under the firm impression 
> that, even today, every root nameserver contained the appropriate NS 
> records for every domain within the TLDs they are authoritative for.  
> Again, perhaps that is an antiquated view?  The point being that the 
> registrars NS is not interrogated unless they are listed as being the NS 
> for that specific, registered domain.


You fail to understand. THE REGISTRARS HAVE NO AUTHORITATIVE NAMESERVERS
FOR THE TLD'S THEY SELL.

A domain, when "sold", is simply a couple (or more) NS records pushed into
the root zone for that TLD.

If you buy foobar.org, the registrar tells ultraDNS (the maintainers of the
.org zone) to add NS records for foobar.org to point to your name servers.
(foobar.org. IN NS ns1.foobar.org.))

If the nameservers you specified do not already exist, they are created
in the appropriate root TLD zone file as A records (ns1.foobar.org. IN A 1.2.3.4)


Both of you seem to be confusing the global domain system with registrars
that offer to run DNS for you (free or charge). Obviously if they are 
hosting your zone (foobar.org) and they go down, your DNS will stop working.

-- 
Matthew S. Hallacy                            FUBAR, LART, BOFH Certified
http://www.poptix.net                           GPG public key 0x01938203

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