In message <1e0e55280905282306v69cea6b7m22b7ea6e8dea6afe@mail.gmail.com>, Anton Zimm writes:
Hi, I'm looking for glue record for ns1.push.mobi so I ask one of the root name server. It gives me the list of dot mobi authorized name servers.
I'm expecting it to be answered by one of the mobi tld authorized name servers, but it's telling me that it delegates the answer to ns1.push.mobi instead. It does not make sense for me because how can I ask ns1.push.mobi if I don't know its ip address yet... Clue please..?
Did you bother to read the response? The glue records are in the *additional* section. Iterative resolvers know to look in the additional section to find glue records. Mark
----- az@hollywood:~$ dig @B2.MOBI.AFILIAS-NST.ORG. ns1.push.mobi ....
;; QUESTION SECTION: ;ns1.push.mobi. IN A
;; AUTHORITY SECTION: push.mobi. 86400 IN NS ns1.push.mobi. push.mobi. 86400 IN NS ns2.push.mobi.
;; ADDITIONAL SECTION: ns1.push.mobi. 86400 IN A 117.102.248.2 ns2.push.mobi. 86400 IN A 117.102.248.3 -----
best, Anton.
-- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org