MX record lookup problem.
Mark Andrews
Mark_Andrews at isc.org
Thu Mar 10 02:25:03 UTC 2005
> 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
More information about the bind-users
mailing list