External Resolution

[Barry Margolin]

In article <s8f72feb.075 at mail.srttel.com>,
Elsie Simonton <elsiels at srttel.com> wrote:
>Hi:
>Here is what I have learned so far.  Our domain is resolving fine.  =
>Nslookup and dig from the name server are working.  Here is the puzzling =
>part.  (I did not set this up only trying to troubleshoot the problem)
>From what I have learned today, it looks like our main domain will not =
>resolve either.  www.ndak.net=20
>when I do a did to our root server it comes back with:
>[root at mrtg netadm]# dig @NS10.VWH1.NET ndak.net
>
>; <<>> DiG 8.1 <<>> @NS10.VWH1.NET ndak.net
>; (1 server found)
>;; res options: init recurs defnam dnsrch
>;; got answer:
>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
>;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 13
>;; QUERY SECTION:
>;;      ndak.net, type =3D A, class =3D IN
>
>This is the same response that I get for=20
>www.teacher-aid.com
>
>When I do an nslookup for ndak.net using the NS10.VWH1.NET as the server I =
>just get a list of root servers. =20

ns10.vwh1.net has recursion disabled (the flags don't include "ra", which
stands for "recursion available").  Anyone who is trying to use
ns10.vwh1.net as a caching server is misconfigured.  What prompted you to
query that server in the first place?

>Thus from what I understand it means that our root servers are not current =
>with our DNS information.  And unless you are inside of our network you =
>will not be able to resolve addresss.

I have no problem looking up ndak.net using our caching servers:

% dig ndak.net

; <<>> DiG 8.1 <<>> ndak.net 
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;;	ndak.net, type = A, class = IN

;; ANSWER SECTION:
ndak.net.		23h59m49s IN A	206.30.26.13

;; AUTHORITY SECTION:
ndak.net.		1d20h27m IN NS	NS1.ISPN.net.
ndak.net.		1d20h27m IN NS	TROY.ndak.net.

;; ADDITIONAL SECTION:
NS1.ISPN.net.		1d22h47m35s IN A  208.142.68.1
TROY.ndak.net.		1d22h47m35s IN A  206.30.26.10

;; Total query time: 10 msec
;; FROM: tools to SERVER: default -- 4.2.2.1
;; WHEN: Fri Apr 14 17:08:22 2000
;; MSG SIZE  sent: 26  rcvd: 119


-- 
Barry Margolin, barmar at genuity.net
Genuity, Burlington, MA
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