BIND servers don't provide lookup...why?
Julian Daniel
jdaniel at smcdsb.on.ca
Thu Jun 23 02:35:52 UTC 2005
One of our teachers is asking why we cannot provide domain resolution for
"centralontariocachers.com".
I have tried four BIND servers (three v9.2.1, two of which are outside our
firewall, one v9.3.1), and they respond with SERVFAIL as follows
(10.100.1.77 is running v9.3.1):
---------------
$dig centralontariocachers.com
; <<>> DiG 9.2.2 <<>> centralontariocachers.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 53492
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;centralontariocachers.com. IN A
;; Query time: 1 msec
;; SERVER: 10.100.1.77#53(10.100.1.77)
;; WHEN: Wed Jun 22 18:29:01 2005
;; MSG SIZE rcvd: 43
---------------
but if I get a different response when I do the following:
---------------
$ dig +norec centralontariocachers.com
; <<>> DiG 9.2.2 <<>> +norec centralontariocachers.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18360
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
;; QUESTION SECTION:
;centralontariocachers.com. IN A
;; AUTHORITY SECTION:
centralontariocachers.com. 7097 IN NS
ns3.incognitonetworks.com.
centralontariocachers.com. 7097 IN NS
ns4.incognitonetworks.com.
;; ADDITIONAL SECTION:
ns3.incognitonetworks.com. 155895 IN A 70.85.116.132
ns4.incognitonetworks.com. 172427 IN A 70.85.116.133
;; Query time: 1 msec
;; SERVER: 10.100.1.77#53(10.100.1.77)
;; WHEN: Wed Jun 22 18:28:44 2005
;; MSG SIZE rcvd: 129
---------------
What gives? Is this a BIND bug? Our Windows 2000 DNS (10.100.1.252)
responds as follows:
---------------
$ dig centralontariocachers.com @10.100.1.252
; <<>> DiG 9.2.2 <<>> centralontariocachers.com @10.100.1.252
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43170
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;centralontariocachers.com. IN A
;; ANSWER SECTION:
centralontariocachers.com. 14399 IN A 70.85.116.132
;; Query time: 301 msec
;; SERVER: 10.100.1.252#53(10.100.1.252)
;; WHEN: Wed Jun 22 18:39:05 2005
;; MSG SIZE rcvd: 59
---------------
Explanations? Solutions?
Many thanks!
Julian Daniel
Information Systems Support
Simcoe Muskoka CDSB
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