problem resolving domains with bind9.5.0-P2

[Matthias Brehm]

Dear all,

 

we use bind9.5.0-P2 for the internet dns server. 

Sometimes we get no response for some domains, like this:

 

; <<>> DiG 9.3.2 <<>> cluster3.eu.messagelabs.com

;; global options:  printcmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 34869

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

 

;; QUESTION SECTION:

;cluster3.eu.messagelabs.com.   IN      A

 

;; Query time: 166 msec

;; SERVER: 195.145.31.131#53(195.145.31.131)

;; WHEN: Fri Aug 21 11:00:01 2009

;; MSG SIZE  rcvd: 45

 

If we ask the same question a few seconds later, we get a correct
answer. ( e.g. two out-of ten we get an error)

Then we stop and start the named daemon and it works fine for a while.

 

Any ideas?

How can we debug this issue? 

 

Thanks in advance.

 

Greets, Matthias

 

 

 

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