[SlugBug] DNS problem

[Alan Dawson]

I have  a DNS server that refuses to resolve a particular domain unless I
restart it.  

Can anybody give me some good ideas where to start debugging this ?


for example 

dig -t mx the.domain.co.uk @localhost +besteffort

; <<>> DiG 9.2.4 <<>> -t mx the.domain.co.uk @localhost +besteffort
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 16991
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;the.domain.co.uk.                IN      MX

;; Query time: 1 msec
;; SERVER: 127.0.0.1#53(localhost)
;; WHEN: Fri Oct 20 09:07:05 2006
;; MSG SIZE  rcvd: 40


Then after a named restart

dig -t mx the.domain.co.uk @localhost +besteffort

; <<>> DiG 9.2.4 <<>> -t mx the.domain.co.uk @localhost +besteffort
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20995
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 3, ADDITIONAL: 0

;; QUESTION SECTION:
;the.domain.co.uk.                IN      MX

;; ANSWER SECTION:
the.domain.co.uk. 43200   IN      MX      10 cluster-e.mailcontrol.com.
the.domain.co.uk. 43200   IN      MX      10 cluster-a.mailcontrol.com.

;; AUTHORITY SECTION:
the.domain.co.uk. 172800  IN      NS      ns3.the.domain.co.uk.
the.domain.co.uk. 172800  IN      NS      ns1.the.domain.co.uk.
the.domain.co.uk. 172800  IN      NS      ns2.the.domain.co.uk.

;; Query time: 275 msec
;; SERVER: 127.0.0.1#53(localhost)
;; WHEN: Fri Oct 20 09:10:37 2006
;; MSG SIZE  rcvd: 161


Cheer,

AED
-- 
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