Recursive DNS problem

[bangla desh]

Hello all,

I am running Bind 9.7.1-p2 as recursive dns. I encountered this problem with
the domain hsbc.com.bd. When I dig hsbc.com.bd, it gives me a connection
timed out response.

 #dig hsbc.com.bd

; <<>> DiG 9.7.1-P2 <<>> hsbc.com.bd
;; global options: +cmd
;; connection timed out; no servers could be reached

But when I cleared my cache thru rndc flush, I then have a response and
solved the problem:

#dig hsbc.com.bd

; <<>> DiG 9.7.1-P2 <<>> hsbc.com.bd
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10733
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 3

;; QUESTION SECTION:
;hsbc.com.bd.                   IN      A

;; ANSWER SECTION:
hsbc.com.bd.            900     IN      A       203.112.92.6

;; AUTHORITY SECTION:
hsbc.com.bd.            900     IN      NS      ns2.hsbc.com.sg.
hsbc.com.bd.            900     IN      NS      ns13.hsbc.com.hk.
hsbc.com.bd.            900     IN      NS      ns11.hsbc.com.hk.
hsbc.com.bd.            900     IN      NS      ns1.hsbc.com.sg.

;; ADDITIONAL SECTION:
ns1.hsbc.com.sg.        899     IN      A       203.112.84.5
ns11.hsbc.com.hk.       899     IN      A       203.112.90.4
ns13.hsbc.com.hk.       899     IN      A       203.112.90.5

;; Query time: 884 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Jan 26 18:53:23 2011
;; MSG SIZE  rcvd: 189

I digged further about the problem as to what causes it. I found out that if
I clear the cache and then dig first the ns record(s) of com.bd, before I
dig hsbc.com.bd, I will be able to replicate the problem.

What bothered me is what is in com.bd that blocks the response from
hsbc.com.bd? Please I need your inputs.


Thanks,

Bangla
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