[Pdns-users] CNAME NXDOMAIN problem
fclaire at free.fr
Fri Nov 22 08:45:08 UTC 2013
> Appears that you receive nxdomain from nameserver, see at the end of trace.
Indeed the g2.ebay.com. DNS server (18.104.22.168) answers
thumbs.g.ebay.com. with an NXDomain:
14:13:38.023503 IP W.X.Y.Z.4994 > 22.214.171.124.53: 26515 [1au] A?
14:13:38.196462 IP 126.96.36.199.53 > W.X.Y.Z.4994: 26515 NXDomain*-
But when using dig, the g2.ebay.com. DNS server answers a CNAME record:
$ dig @188.8.131.52 thumbs.g.ebay.com
; <<>> DiG 9.8.4-P2 <<>> @184.108.40.206 thumbs.g.ebay.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58678
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;thumbs.g.ebay.com. IN A
;; ANSWER SECTION:
thumbs.g.ebay.com. 60 IN CNAME c.ebay.georedirector.akadns.net.
;; Query time: 177 msec
;; SERVER: 220.127.116.11#53(18.104.22.168)
;; WHEN: Thu Nov 21 14:41:08 2013
;; MSG SIZE rcvd: 80
So why is the powerDNS recursor receiving an NXDomain ? Is its query
To reproduce the problem is easy: just use the "dig thumbs.g.ebay.com"
command on your pdns_recursor server.
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