dig weirdness

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Author: Eric \"Shubes\"
Date:  
To: PLUG List
Subject: dig weirdness
I'm running caching-nameserver on two different CentOS4.4 boxen. On both,
I've added named.conf options to both:
        forward first;
        forwarders {
                ip1.of.providers.dns;
                ip2.of.providers.dns;
        };


The provider is different from one boxen to the other.

Questions:

1) When I first dig a domain after restarting named, I get no
;; AUTHORITY SECTION:
from the command. Why would that be?

2) When I dig my domain from one boxen, the authority section gives me:

;; ADDITIONAL SECTION:
ns1.mydyndns.org.       68523   IN      A       63.208.196.92
ns2.mydyndns.org.       68523   IN      A       204.13.249.82
ns3.mydyndns.org.       68532   IN      A       204.13.250.82
ns4.mydyndns.org.       68523   IN      A       213.155.150.206
ns5.mydyndns.org.       68513   IN      A       63.208.196.93


which looks correct to me. When I dig the same domain from the other boxen
(and other ISP), I get

;; AUTHORITY SECTION:
.                       518383  IN      NS      D.ROOT-SERVERS.net.
.                       518383  IN      NS      E.ROOT-SERVERS.net.
.                       518383  IN      NS      F.ROOT-SERVERS.net.
.                       518383  IN      NS      G.ROOT-SERVERS.net.
.                       518383  IN      NS      H.ROOT-SERVERS.net.
.                       518383  IN      NS      I.ROOT-SERVERS.net.
.                       518383  IN      NS      J.ROOT-SERVERS.net.
.                       518383  IN      NS      K.ROOT-SERVERS.net.
.                       518383  IN      NS      L.ROOT-SERVERS.net.
.                       518383  IN      NS      M.ROOT-SERVERS.net.
.                       518383  IN      NS      A.ROOT-SERVERS.net.
.                       518383  IN      NS      B.ROOT-SERVERS.net.
.                       518383  IN      NS      C.ROOT-SERVERS.net.


This doesn't look right. Why are root servers being listed under authority?
Is this ISP's DNS possibly not set quite right, or is it me?
Where should I be looking to fix it?
--
-Eric 'shubes'
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