[Unbound-users] Cannot resolve nominum.org: SERVFAIL

[Stephane Bortzmeyer]

% dig MX nominum.org

; <<>> DiG 9.7.3 <<>> MX nominum.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 12227
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;nominum.org.                   IN      MX

;; Query time: 1 msec
;; SERVER: ::1#53(::1)
;; WHEN: Tue Feb  7 11:01:37 2012
;; MSG SIZE  rcvd: 40

It works for my BIND resolvers. Restarting solved the problem. Log is attached:

Feb  7 11:01:37 batilda unbound: [17061:0] debug: validator[module 0] operate: extstate:module_state_initial event:module_event_new
Feb  7 11:01:37 batilda unbound: [17061:0] info: validator operate: query nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: iterator[module 1] operate: extstate:module_state_initial event:module_event_pass
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 2):  nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 3):  nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: processQueryTargets: nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: new target ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: new target ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: iterator[module 1] operate: extstate:module_state_initial event:module_event_pass
Feb  7 11:01:37 batilda unbound: [17061:0] info: iterator operate: query ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 2):  ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 3):  ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: processQueryTargets: ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: skipping target due to dependency cycle (harden-glue: no may fix some of the cycles) ns2.staff.nominum.org. A IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: new target ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: iterator[module 1] operate: extstate:module_state_initial event:module_event_pass
Feb  7 11:01:37 batilda unbound: [17061:0] info: iterator operate: query ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 2):  ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: resolving (init part 3):  ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: processQueryTargets: ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: skipping target due to dependency cycle (harden-glue: no may fix some of the cycles) ns2.staff.nominum.org. A IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: skipping target due to dependency cycle (harden-glue: no may fix some of the cycles) ns1.staff.nominum.org. A IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: out of query targets -- returning SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: return error response SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: validator[module 0] operate: extstate:module_state_initial event:module_event_moddone
Feb  7 11:01:37 batilda unbound: [17061:0] info: validator operate: query ns1.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: iterator[module 1] operate: extstate:module_wait_subquery event:module_event_pass
Feb  7 11:01:37 batilda unbound: [17061:0] info: iterator operate: query ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: processQueryTargets: ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: out of query targets -- returning SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: return error response SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: validator[module 0] operate: extstate:module_state_initial event:module_event_moddone
Feb  7 11:01:37 batilda unbound: [17061:0] info: validator operate: query ns2.staff.nominum.org. AAAA IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: iterator[module 1] operate: extstate:module_wait_subquery event:module_event_pass
Feb  7 11:01:37 batilda unbound: [17061:0] info: iterator operate: query nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] info: processQueryTargets: nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: out of query targets -- returning SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: return error response SERVFAIL
Feb  7 11:01:37 batilda unbound: [17061:0] debug: validator[module 0] operate: extstate:module_wait_module event:module_event_moddone
Feb  7 11:01:37 batilda unbound: [17061:0] info: validator operate: query nominum.org. MX IN
Feb  7 11:01:37 batilda unbound: [17061:0] debug: cache memory msg=2200012 rrset=3674981 infra=1964631 val=530448