MX record lookup problem.

[Mark Andrews]

> In article <d0nt8h$30gf$1 at sf1.isc.org>,
>  Grahame Cooper <Grahame at JandG-Cooper.com> wrote:
> 
> > I have a domain name jandg-cooper.com registered with Enom.
> > 
> > jandg-cooper.com does not refer to any host, so there is no A or CNAME 
> > record for that, but there is an MX record for jandg-cooper.com, which 
> > points to cooper-linux.jandg-cooper.com
> > 
> > The problem is that if an MX query for jandg-cooper is preceded by an A 
> > record query, then the MX query fails:
> > 
> >   $ host -t MX jandg-cooper.com
> >   jandg-cooper.com mail is handled by 10 cooper-linux.jandg-cooper.com.
> > 
> >   $ host jandg-cooper.com
> >   Host jandg-cooper.com not found: 3(NXDOMAIN)

	The auth servers are broken.

; <<>> DiG 8.3 <<>> jandg-cooper.com @dns3.name-services.com +norec 
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 30809
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;	jandg-cooper.com, type = A, class = IN

;; AUTHORITY SECTION:
jandg-cooper.com.	1H IN SOA	dns1.name-services.com. info.name-services.com. (
					2002050701	; serial
					2h46m41s	; refresh
					30m1s		; retry
					1w1s		; expiry
					3m1s )		; minimum


;; Total query time: 5072 msec
;; FROM: drugs.dv.isc.org to SERVER: 63.251.83.36
;; WHEN: Thu Mar 10 13:23:15 2005
;; MSG SIZE  sent: 34  rcvd: 124


; <<>> DiG 8.3 <<>> jandg-cooper.com @dns3.name-services.com mx 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41242
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 6
;; QUERY SECTION:
;;	jandg-cooper.com, type = MX, class = IN

;; ANSWER SECTION:
jandg-cooper.com.	1h1s IN MX	10 cooper-linux.jandg-cooper.com.

;; AUTHORITY SECTION:
jandg-cooper.com.	1H IN NS	dns1.name-services.com.
jandg-cooper.com.	1H IN NS	dns2.name-services.com.
jandg-cooper.com.	1H IN NS	dns3.name-services.com.
jandg-cooper.com.	1H IN NS	dns4.name-services.com.
jandg-cooper.com.	1H IN NS	dns5.name-services.com.

;; ADDITIONAL SECTION:
cooper-linux.jandg-cooper.com.  1h1s IN A  213.106.40.103
dns1.name-services.com.  1H IN A  63.251.163.102
dns2.name-services.com.  1H IN A  216.52.184.230
dns3.name-services.com.  1H IN A  63.251.83.36
dns4.name-services.com.  1H IN A  64.74.96.242
dns5.name-services.com.  1H IN A  212.118.243.118

;; Total query time: 5162 msec
;; FROM: drugs.dv.isc.org to SERVER: 63.251.83.36
;; WHEN: Thu Mar 10 13:24:07 2005
;; MSG SIZE  sent: 34  rcvd: 317

> >   $ host cooper-linux.jandg-cooper.com
> >   cooper-linux.jandg-cooper.com has address 213.106.40.103
> > 
> >   $ host -t MX jandg-cooper.com
> >   Host jandg-cooper.com not found: 3(NXDOMAIN)
> > 
> > I'm not sure whether this is a problem with Bind or Enom.
> > 
> > Any clues?
> 
> I can't reproduce your problem.  I suggest you try it with "dig" instead 
> of "host" so you can see the queries and responses in detail.
> 
> -- 
> Barry Margolin, barmar at alum.mit.edu
> Arlington, MA
> *** PLEASE post questions in newsgroups, not directly to me ***
> 
> 
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org