PowerDNS Server responding with out-of-zone authority section in case there is a cname #271

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Habbie opened this Issue Apr 26, 2013 · 1 comment

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Habbie commented Apr 26, 2013

A friend of mine noticed that a current BIND9 with cold caches will respond with a server failure to questions for IN AAAA www.mediawiki.org and i noticed that the delegated nameserver for both domains ns(0|1|2).wikimedia.org all respond to said query with an authority section of the wikimedia.org domain.

www.mediawiki.org.      3600    IN      CNAME   rr.wikimedia.org.
rr.wikimedia.org.       600     IN      CNAME   rr.esams.wikimedia.org.
rr.esams.wikimedia.org. 3600    IN      A       91.198.174.2
sh-4.1$ dig aaaa www.mediawiki.org. @ns0.wikimedia.org +norec

; <<>> DiG 9.6.1-P3 <<>> aaaa www.mediawiki.org. @ns0.wikimedia.org +norec
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60713
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.mediawiki.org.             IN      AAAA

;; AUTHORITY SECTION:
wikimedia.org.          86400   IN      SOA     ns0.wikimedia.org. hostmaster.wikimedia.org. 2010021520 43200 7200 1209600 3600

;; Query time: 140 msec
;; SERVER: 208.80.152.130#53(208.80.152.130)
;; WHEN: Tue Feb 16 21:58:54 2010
;; MSG SIZE  rcvd: 109
@Habbie Habbie was assigned Apr 26, 2013
@Habbie Habbie closed this Apr 26, 2013
@Habbie
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Habbie commented Apr 26, 2013

Author: peter
Looks like a misconfig. Closing ticket.

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