Should I register namehost or not?

[Barry Margolin]

In article <g9iko5$jhu$1 at sf1.isc.org>, MontyRee <chulmin2 at hotmail.com> 
wrote:

> Hello, all.
> 
> 
> According to some domain service provider,
> if I operate dns server, I should register the DNS information with the 
> namehost from the registrar.
> and should be queried like below. 
> 
> http://reports.internic.net/cgi/whois?whois_nic=ns-ext.isc.org.&type=nameserve
> r
> 
> ns-ext.isc.org is a nameserver of the isc.org.
> 
> 
> But, when I query some nameservers of the famous domain, some queries well 
> but some didn't.
> 
> 
> So, I don't know that should I register namehost or not?
> If then, why should I register?
> and some nameservers that didn't register, how to services well?

If the nameserver is in the domain it's serving, the parent zone needs 
to contain a "glue record" for the hostname, to prevent infinite 
recursion.  See:

http://en.wikipedia.org/wiki/Domain_name_system#Circular_dependencies_and
_glue_records

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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