dig +trace problem

[Mark Andrews]

> It worked for me.   Are you doing this from somewhere internal to
> ymllabs.com?  Perhaps you're not getting there the way you think. 
> 
> dig mail.ymllabs.com +trace +recurse
> 
> ; <<>> DiG 9.2.1 <<>> mail.ymllabs.com +trace +recurse
> ;; global options:  printcmd
> .                       334665  IN      NS      G.ROOT-SERVERS.NET.
> .                       334665  IN      NS      H.ROOT-SERVERS.NET.
> .                       334665  IN      NS      I.ROOT-SERVERS.NET.
> .                       334665  IN      NS      J.ROOT-SERVERS.NET.
> .                       334665  IN      NS      K.ROOT-SERVERS.NET.
> .                       334665  IN      NS      L.ROOT-SERVERS.NET.
> .                       334665  IN      NS      M.ROOT-SERVERS.NET.
> .                       334665  IN      NS      A.ROOT-SERVERS.NET.
> .                       334665  IN      NS      B.ROOT-SERVERS.NET.
> .                       334665  IN      NS      C.ROOT-SERVERS.NET.
> .                       334665  IN      NS      D.ROOT-SERVERS.NET.
> .                       334665  IN      NS      E.ROOT-SERVERS.NET.
> .                       334665  IN      NS      F.ROOT-SERVERS.NET.
> ;; Received 260 bytes from 12.44.84.213#53(12.44.84.213) in 9 ms
> 
> com.                    172800  IN      NS      A.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      B.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      C.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      D.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      E.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      F.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      G.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      H.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      I.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      J.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      K.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      L.GTLD-SERVERS.NET.
> com.                    172800  IN      NS      M.GTLD-SERVERS.NET.
> ;; Received 506 bytes from 192.112.36.4#53(G.ROOT-SERVERS.NET) in 60 ms
> 
> ymllabs.com.            172800  IN      NS      ns.cyberwebglobal.info.
> ymllabs.com.            172800  IN      NS      ns2.cyberwebglobal.info.
> ;; Received 88 bytes from 192.5.6.30#53(A.GTLD-SERVERS.NET) in 30 ms
> 
> mail.ymllabs.com.       300     IN      A       210.212.104.19
> ymllabs.com.            300     IN      NS      ns.cyberwebglobal.info.
> ymllabs.com.            300     IN      NS      ns2.cyberwebglobal.info.
> ;; Received 104 bytes from 203.199.113.30#53(ns.cyberwebglobal.info) in
> 290 ms

	Only GLUE A records exist for ns.cyberwebglobal.info and
	ns2.cyberwebglobal.info.  The A records which should also be
	in the cyberwebglobal.info do not exist.  If you have a IPv6
	capable machine then named / dig will ask for the AAAA record
	for these nameservers and get back a response which says that
	the nameservers DO NOT EXIST.

	If you are IPv4 only (or are lucky enough that the query pattern
	gets the glue records) you will sometimes get a answer.

	Mark

; <<>> DiG 9.3.2 <<>> ns.cyberwebglobal.info @203.199.113.30 +norec
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12276
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;ns.cyberwebglobal.info.		IN	A

;; AUTHORITY SECTION:
cyberwebglobal.info.	300	IN	SOA	ns.cyberwebglobal.info. postmaster.cyberwebglobal.info. 2006041601 10800 3600 604800 300

;; Query time: 369 msec
;; SERVER: 203.199.113.30#53(203.199.113.30)
;; WHEN: Fri Apr 21 17:05:31 2006
;; MSG SIZE  rcvd: 87

> 
> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Carl Byington
> Sent: Thursday, April 20, 2006 11:44 AM
> To: comp-protocols-dns-bind at isc.org
> Subject: dig +trace problem
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On my system, 
>   "dig mail.ymllabs.com +trace +recurse" 
> returns 
>   "couldn't get address for 'ns.cyberwebglobal.info': not found" 
> 
> Yet 
>   "host mail.ymllabs.com"
> after a bit of delay returns 210.212.104.19.
> 
> I thought the above dig command should return that ip address. Am I
> misinterpreting the dig parameters, or is there something strange with
> that name?
> 
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> iD8DBQFER6wOL6j7milTFsERAko/AJ4hebCLKc7HmicvkRSh3FA++X6RWgCfbZ+v
> eOugQBCi6m86T7ul+S5b4aM=
> =RP9z
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> 
> 
> 
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org