[Pdns-users] Weird CNAME root-referral problem

Ask Bjørn Hansen ask at develooper.com
Tue Feb 10 07:45:03 UTC 2009


Hi,

I can't get powerdns (2.9.22) to not send root(!) referrals with CNAME  
replies.  Any ideas?

I wrote it up in http://wiki.powerdns.com/cgi-bin/trac.fcgi/ticket/223

Any ideas?  The records are listed in the ticket.  dig output below.

  - ask


Here's from powerdns:

; <<>> DiG 9.3.4-P1 <<>> +norec st.pimg.net @64.235.248.120
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27129
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 13

;; QUESTION SECTION:
;st.pimg.net.			IN	A

;; ANSWER SECTION:
st.pimg.net.		86400	IN	CNAME	g1.panthercdn.com.

;; AUTHORITY SECTION:
.			518400	IN	NS	a.root-servers.net.
.			518400	IN	NS	b.root-servers.net.
[...]

;; ADDITIONAL SECTION:
a.root-servers.net.	3600000	IN	A	198.41.0.4
b.root-servers.net.	3600000	IN	A	192.228.79.201
[...]

;; Query time: 2 msec
;; SERVER: 64.235.248.120#53(64.235.248.120)
;; WHEN: Mon Feb  9 23:42:23 2009
;; MSG SIZE  rcvd: 476


And from mydns (powerdns is currently axfr'ing the zone from the mydns  
installation):

; <<>> DiG 9.3.4-P1 <<>> +norec st.pimg.net @216.52.237.236
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38003
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 5

;; QUESTION SECTION:
;st.pimg.net.			IN	A

;; ANSWER SECTION:
st.pimg.net.		86400	IN	CNAME	g1.panthercdn.com.

;; AUTHORITY SECTION:
pimg.net.		86400	IN	NS	ns1.eu.bitnames.com.
pimg.net.		86400	IN	NS	ns1.us.bitnames.com.
[...]

;; ADDITIONAL SECTION:
ns1.eu.bitnames.com.	1800	IN	A	78.153.203.29
ns1.us.bitnames.com.	86400	IN	A	216.52.237.236
[...]

;; Query time: 2 msec
;; SERVER: 216.52.237.236#53(216.52.237.236)
;; WHEN: Mon Feb  9 23:43:14 2009
;; MSG SIZE  rcvd: 245


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