Question about "proper" way to run v6/v4 website

[Doug Barton]

Carlos Friacas wrote:

> But when looking if .us was glued to the root with at least one AAAA, 
> the result has been sort of puzzling for me.......

That's because you asked the wrong questions.

> ; <<>> DiG 9.3.0 <<>> @a.gtld.biz us soa

What you want is to query for the NS records, which give the desired 
information:

; <<>> DiG 9.4.1 <<>> @a.root-servers.net. us. ns
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 203
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;us.                            IN      NS

;; AUTHORITY SECTION:
us.                     172800  IN      NS      J.GTLD.BIZ.
us.                     172800  IN      NS      K.GTLD.BIZ.
us.                     172800  IN      NS      A.GTLD.BIZ.
us.                     172800  IN      NS      B.GTLD.BIZ.
us.                     172800  IN      NS      C.GTLD.BIZ.
us.                     172800  IN      NS      I.GTLD.BIZ.

;; ADDITIONAL SECTION:
A.GTLD.BIZ.             172800  IN      A       209.173.53.162
B.GTLD.BIZ.             172800  IN      A       209.173.57.162
C.GTLD.BIZ.             172800  IN      A       209.173.60.65
I.GTLD.BIZ.             172800  IN      A       156.154.96.126
I.GTLD.BIZ.             172800  IN      AAAA 
2001:503:d1ae:ffff:ffff:ffff:ffff:ff7e
J.GTLD.BIZ.             172800  IN      AAAA 
2001:503:a124:ffff:ffff:ffff:ffff:ff7e
K.GTLD.BIZ.             172800  IN      A       156.154.72.65

Interestingly, J seems to only have an AAAA address. Bold move. :)

> ; <<>> DiG 9.3.0 <<>> @a.root-servers.net us soa

There is no way that query would get you what you're looking for. All 
it will produce is a referral, which is what you got. You could 
however substitute NS for SOA in this query too, and you'd once again 
get the right answer.

hth,

Doug

-- 
     If you're never wrong, you're not trying hard enough