Bind not returning A record

[Paul Ooi Cong Jen]

On 22-Dec-2010, at 9:41 PM, Lyle Giese wrote:

> Paul Ooi Cong Jen wrote:
>> kwsp.gov.my.            86400   IN      NS      ns3.pttcdc.com.my.
>> ;; Received 109 bytes from 137.189.6.21#53(ns2.cuhk.edu.hk) in 52 ms
>> 
>> www.kwsp.gov.my.        43200   IN      CNAME   www.yu.kwsp.gov.my.
>> ;; Received 54 bytes from 202.184.117.10#53(ns3.pttcdc.com.my) in 21 ms
>> -----------------------------------------------
>> 
>> If I tried to rndc flush, dig again the record return the result 
>> ------------------------------
>> 
>> dig @localhost www.kwsp.gov.my
>> 
>> ; <<>> DiG 9.7.0-P3 <<>> @localhost www.kwsp.gov.my
>> ; (2 servers found)
>> ;; global options: +cmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20092
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 0
>> 
>> ;; QUESTION SECTION:
>> ;www.kwsp.gov.my.               IN      A
>> 
>> ;; ANSWER SECTION:
>> www.kwsp.gov.my.        43186   IN      CNAME   www.yu.kwsp.gov.my.
>> www.yu.kwsp.gov.my.     30      IN      A       202.162.21.166
>> 
>> ;; AUTHORITY SECTION:
>> yu.kwsp.gov.my.         43200   IN      NS      ns2.yu.kwsp.gov.my.
>> yu.kwsp.gov.my.         43200   IN      NS      ns1.yu.kwsp.gov.my.
>> 
>> ;; Query time: 829 msec
>> ;; SERVER: 127.0.0.1#53(127.0.0.1)
>> ;; WHEN: Wed Dec 22 15:04:55 2010
>> ;; MSG SIZE  rcvd: 106
>> 
>> ------------------------
>> 
>> 
>>> From the debug logs, we see the error message as below
>> 
>> gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:38:52.845 query-errors: client 211.24.220.233#54055: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:38:52.845 query-errors: client 211.24.220.233#54023: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:40:27.940 query-errors: client 203.121.30.35#52679: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:40:27.940 query-errors: client 211.24.220.233#54143: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:43:48.202 query-errors: client 211.24.177.146#62297: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:43:48.202 query-errors: client 211.24.220.233#54459: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:43:48.202 query-errors: client 211.24.220.233#54473: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:43:48.202 query-errors: client 211.24.177.146#62297: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:44:48.290 query-errors: client 211.24.220.233#54530: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:44:48.290 query-errors: client 127.0.0.1#19009: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 22-Dec-2010 14:44:48.290 query-errors: client 211.24.220.233#54547: query failed (SERVFAIL) for www.kwsp.gov.my/IN/A at query.c:4650
>> 
>> On the other hand, we notice that the NS record seem like no DNS service running, could it be client side or server side problem?
>> 
> Bind is returning the proper answer.  There is no A record for www.kwsp.gov.my.  It's been setup as a CNAME to www.yu.kwsp.gov.my and you have received that answer.
> 
> As far as those errors go, those are probably errors in their setup.

Hi Lyle, 

I guess the same too, because the NS record for the CNAME seems not available.

> 
> Lyle Giese
> LCR Computer Services, Inc.
> 
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