[dns-operations] Missing .us and GTLD records??

[T.Suzuki]

On Wed, 19 May 2010 11:38:41 +1000
Mark Andrews <marka at isc.org> wrote:

> 
> In message <20100519000419.GA1296950 at hiwaay.net>, Chris Adams writes:
> > Once upon a time, Luis Uribarri <uribarri at alum.mit.edu> said:
> > > dig: Couldn't find server 'j.gtld.biz': Name or service not known
> > > ======================================
> > > ;; Received 472 bytes from 192.33.4.12#53(c.root-servers.net) in 21 ms
> > > 
> > > dig: Couldn't find server 'j.cctld.us': Name or service not known
> > > ======================================
> > > Sure enough,
> > > You can confirm with plain old BIND, the "A" records do not exist, (just 
> > > the glue, but not the A), should not all 'Registered Name Servers' have 
> > > the 'A' records published, or am I totally wrong here.
> > 
> > You are using an older version of dig that assumes all servers have A
> > records.  The above servers only have AAAA records, which is perfectly
> > valid.
> 
> Or the OS doesn't have IPv6 turned on.  Time to turn on IPv6.

Then, when should we turn off IPv4 and remove A records ?

-- 
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T.Suzuki