Maintained by: NLnet Labs

[Unbound-users] Surprising successful resolution

Florian Weimer
Tue Jan 19 20:25:43 CET 2010


I believe this response should be a SERVFAIL instead:

; <<>> DiG 9.6.1-P2 <<>> www.fokus.gmd.de txt
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55433
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2

;; QUESTION SECTION:
;www.fokus.gmd.de.              IN      A

;; AUTHORITY SECTION:
fokus.gmd.de.           7200    IN      NS      dns.gmd.de.
fokus.gmd.de.           7200    IN      NS      gaia.fokus.gmd.de.
fokus.gmd.de.           7200    IN      NS      helios.fokus.gmd.de.

;; ADDITIONAL SECTION:
gaia.fokus.gmd.de.      7200    IN      A       193.174.154.10
helios.fokus.gmd.de.    7200    IN      A       193.174.154.5

;; Query time: 1068 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jan 19 20:15:08 2010
;; MSG SIZE  rcvd: 124

dns.gmd.de (129.26.8.82) is lame (it returns a delegation to itself),
and the other servers don't respond at all.

It doesn't make a difference in practice, but I'm still surprised. 8-)