PowerDNS and a strange NXDomain

PostgreSQL, at least under the default PowerDNS table schema, is case sensitive. PowerDNS lowercases all queries. So, make sure to always lowercase your names.

So, It looks like PowerDNS has a massive thing about uppercase strings in certain configurations.

It'll accept BUNT and bunt, but not bunt-1-A1 or variants thereof.

See the edits on the Question, and this block of digs.

tom.oconnor@charcoal-black:~$ dig bunt-A0000.london.wibblesplat.com

; <<>> DiG 9.7.0-P1 <<>> bunt-A0000.london.wibblesplat.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21482
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;bunt-A0000.london.wibblesplat.com. IN  A

;; AUTHORITY SECTION:
london.wibblesplat.com. 86400   IN  SOA dns-1.london.wibblesplat.com. root.london.wibblesplat.com. 2012020835 28800 14400 2419200 86400

;; Query time: 1 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb  8 17:39:01 2012
;; MSG SIZE  rcvd: 116

tom.oconnor@charcoal-black:~$ dig bunt-B.london.wibblesplat.com

; <<>> DiG 9.7.0-P1 <<>> bunt-B.london.wibblesplat.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41445
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;bunt-B.london.wibblesplat.com. IN  A

;; AUTHORITY SECTION:
london.wibblesplat.com. 86400   IN  SOA dns-1.london.wibblesplat.com. root.london.wibblesplat.com. 2012020835 28800 14400 2419200 86400

;; Query time: 1 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb  8 17:39:09 2012
;; MSG SIZE  rcvd: 112

tom.oconnor@charcoal-black:~$ dig bunt-BUNT.london.wibblesplat.com

; <<>> DiG 9.7.0-P1 <<>> bunt-BUNT.london.wibblesplat.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 57635
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;bunt-BUNT.london.wibblesplat.com.  IN  A

;; AUTHORITY SECTION:
london.wibblesplat.com. 86400   IN  SOA dns-1.london.wibblesplat.com. root.london.wibblesplat.com. 2012020835 28800 14400 2419200 86400

;; Query time: 1 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb  8 17:39:14 2012
;; MSG SIZE  rcvd: 115

tom.oconnor@charcoal-black:~$ dig buntA1.london.wibblesplat.com

; <<>> DiG 9.7.0-P1 <<>> buntA1.london.wibblesplat.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29929
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;buntA1.london.wibblesplat.com. IN  A

;; AUTHORITY SECTION:
london.wibblesplat.com. 86400   IN  SOA dns-1.london.wibblesplat.com. root.london.wibblesplat.com. 2012020835 28800 14400 2419200 86400

;; Query time: 1 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb  8 17:39:18 2012
;; MSG SIZE  rcvd: 112