RE: [cobalt-users] more info on my dns

["Mark Spieth" <mspieth@xxxxxxxxxxxx>]

Everything looks ok
Mar  1 05:43:55 training sendmail[2077]: FAA02075: to=admin@xxxxxxxxxxxxx,
ctladdr=root (0/0), delay=00:00:02, xdelay=00:00:02, mailer=esmtp,
relay=mail.hostinghq.com. [64.29.16.2], stat=Sent (BAA13565 Message accepted
for delivery)

[root@training xdm]# dig hostinghq.com

; <<>> DiG 8.2 <<>> hostinghq.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;;      hostinghq.com, type = A, class = IN

;; ANSWER SECTION:
hostinghq.com.          23h59m45s IN A  64.29.16.2

;; AUTHORITY SECTION:
hostinghq.com.          23h59m45s IN NS  NS.hostinghq.com.
hostinghq.com.          23h59m45s IN NS  NS2.hostinghq.com.

;; ADDITIONAL SECTION:
NS.hostinghq.com.       7h19m27s IN A   64.29.16.2
NS2.hostinghq.com.      23h59m45s IN A  64.29.17.2

;; Total query time: 67 msec
;; FROM: training.shellserve.net to SERVER: default -- 207.166.196.210
;; WHEN: Wed Mar  1 05:43:22 2000
;; MSG SIZE  sent: 31  rcvd: 114




-----Original Message-----
From: cobalt-users-admin@xxxxxxxxxxxxxxx
[mailto:cobalt-users-admin@xxxxxxxxxxxxxxx]On Behalf Of Jeff Lasman
Sent: Wednesday, March 01, 2000 2:11 AM
To: cobalt-users@xxxxxxxxxxxxxxx
Subject: Re: [cobalt-users] more info on my dns


At 07:45 PM 2/29/00 -0500, you wrote:
> > heres what in the config file
> >
> > $TTL 86400
> > hostinghq.com. IN SOA ns.hostinghq.com. admin.ns.hostinghq.com. (
> >         2000022900
> >         10800
> >         3600
> >         604800
> >         86400
> >         )
> > hostinghq.com.  IN      NS      ns.hostinghq.com.
> > hostinghq.com.  IN      NS      ns2.hostinghq.com.
> > ; End SOA Header
> > hostinghq.com.  in      mx      30 mail.hostinghq.com.
> > mail.hostinghq.com.     in      a       64.29.16.2
> > ns2.hostinghq.com.      in      a       64.29.17.2
> > hostinghq.com.  in      a       64.29.16.2
> > www.hostinghq.com.      in      a       64.29.16.2
> >
>Looks like a Loop.  Mr. Letter goes to hostinghq.com (64.29.16.2) which
uses
>mail.hostinghq.com which resolves to 64.29.16.2 and that ip resolves to you
>guessed it hostinghq.com (See yoour Reverse below) not mail.hostinghq.com
>so you should change your mx record to hostinghq.com  mail is sent to the
>High priority mail server hostinghq.com

Nope.

The sender's MTA (mail transport agent, I.E., Mailtraq
<www.mailtraqna.com>, or Sendmail <www.sendmail.org>), looks up the MX
record, which points to <mail.hosting.com>.  It looks up the A record for
<mail.hosting.com>, which happens to be 64.29.16.2, and sends the mail
there.  No other lookups, no loops.

BUT...

It only does all this if it can find the MX record.  It can't, because it
can't find the nameserver, ns.hostinghq.com.  It seems there is NO A record
for ns.hosting.com.

Do you have a "host" record set up at Network Solutions (or wherever your
domain is registered)?  What does it point to?

Jeff

--
Jeff Lasman <jblists@xxxxxxxxxxxxx>


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