[Pdns-users] Problem with a domain

Tue Jun 14 13:01:45 UTC 2011

Hi all,

I experience an issue with PowerDNS recursor and the domain
dechiffrages.blog.lemonde.fr.
PDNS can't find an answer for this domain, as it works if I use dig to query
the lemonde.fr name servers or with an online lookup tool.
Here are some traces taken on our DNS recursor :
[root at NS1 ~]# dig dechiffrages.blog.lemonde.fr @indom20.indomco.net

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> dechiffrages.blog.lemonde.fr
@indom20.indomco.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 53028
;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;dechiffrages.blog.lemonde.fr.  IN      A

;; ANSWER SECTION:
dechiffrages.blog.lemonde.fr. 3600 IN   CNAME  
blog.lemonde.fr.2-01-271d-000c.cdx.cedexis.net.

;; Query time: 111 msec
;; SERVER: 69.170.135.194#53(69.170.135.194)
;; WHEN: Fri Jun 10 13:30:28 2011
;; MSG SIZE  rcvd: 106

[root at NS1 ~]# dig dechiffrages.blog.lemonde.fr @127.0.0.1

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> dechiffrages.blog.lemonde.fr
@127.0.0.1
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 33325
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;dechiffrages.blog.lemonde.fr.  IN      A

;; Query time: 4472 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri Jun 10 13:30:59 2011
;; MSG SIZE  rcvd: 46

/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: 1 [636] question
for 'dechiffrages.blog.lemonde.fr.|A' from 127.0.0.1
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Looking for CNAME cache hit of
'dechiffrages.blog.lemonde.fr.|CNAME'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: No CNAME cache hit of
'dechiffrages.blog.lemonde.fr.|CNAME' found
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: No cache hit for
'dechiffrages.blog.lemonde.fr.|A', trying to find an appropriate NS record
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'dechiffrages.blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: no valid/useful NS in cache for
'dechiffrages.blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: no valid/useful NS in cache for
'blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'lemonde.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom10.indomco.com.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom130.indomco.org.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom20.indomco.net.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom30.indomco.fr.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom80.indomco.hk.'
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: We have NS in cache for 'lemonde.fr.'
(flawedNSSet=0)
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Cache consultations done, have 5 NS to
contact
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Nameservers: indom30.indomco.fr.(9ms),
indom10.indomco.com.(21ms), indom130.indomco.org.(21ms),
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.:              indom20.indomco.net.(23ms),
indom80.indomco.hk.(23ms)
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom30.indomco.fr.'
(1/5)
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS indom30.indomco.fr.
to: 213.205.102.3
/var/log/messages:Jun 10 13:30:50 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying IP 213.205.102.3:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:52 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:52 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom10.indomco.com.'
(2/5)
/var/log/messages:Jun 10 13:30:52 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom10.indomco.com. to: 217.174.200.97
/var/log/messages:Jun 10 13:30:52 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying IP 217.174.200.97:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:54 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:54 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom130.indomco.org.'
(3/5)
/var/log/messages:Jun 10 13:30:54 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom130.indomco.org. to: 209.235.192.171
/var/log/messages:Jun 10 13:30:54 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying IP 209.235.192.171:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: 1 [637] question
for 'dechiffrages.blog.lemonde.fr.|A' from 127.0.0.1
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Looking for CNAME cache hit of
'dechiffrages.blog.lemonde.fr.|CNAME'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: No CNAME cache hit of
'dechiffrages.blog.lemonde.fr.|CNAME' found
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: No cache hit for
'dechiffrages.blog.lemonde.fr.|A', trying to find an appropriate NS record
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'dechiffrages.blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: no valid/useful NS in cache for
'dechiffrages.blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: no valid/useful NS in cache for
'blog.lemonde.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Checking if we have NS in cache for
'lemonde.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom10.indomco.com.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom130.indomco.org.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom20.indomco.net.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom30.indomco.fr.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: NS (with ip, or non-glue) in cache for
'lemonde.fr.' -> 'indom80.indomco.hk.'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: within bailiwick: 0, not in cache / did not
look at cache
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: We have NS in cache for 'lemonde.fr.'
(flawedNSSet=0)
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Cache consultations done, have 5 NS to
contact
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Nameservers: indom130.indomco.org.(19ms),
indom20.indomco.net.(21ms), indom80.indomco.hk.(21ms),
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.:              indom10.indomco.com.(919ms),
indom30.indomco.fr.(919ms)
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom130.indomco.org.'
(1/5)
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom130.indomco.org. to: 209.235.192.171
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying IP 209.235.192.171:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom20.indomco.net.'
(4/5)
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom20.indomco.net. to: 69.170.135.194
/var/log/messages:Jun 10 13:30:55 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying IP 69.170.135.194:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom20.indomco.net.'
(2/5)
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom20.indomco.net. to: 69.170.135.194
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying IP 69.170.135.194:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom80.indomco.hk.'
(5/5)
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS indom80.indomco.hk.
to: 202.157.180.150
/var/log/messages:Jun 10 13:30:57 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Trying IP 202.157.180.150:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom80.indomco.hk.'
(3/5)
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS indom80.indomco.hk.
to: 202.157.180.150
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying IP 202.157.180.150:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: Failed to resolve via any of the 5 offered NS
at level 'lemonde.fr.'
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: [636]
dechiffrages.blog.lemonde.fr.: failed (res=-1)
/var/log/messages:Jun 10 13:30:59 NS1 pdns_recursor[967]: 1 [636] answer to
question 'dechiffrages.blog.lemonde.fr.|A': 0 answers, 0 additional, took 5
packets, 0 throttled, 5 timeouts, 0 tcp connections, rcode=2
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: timeout resolving
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom10.indomco.com.'
(4/5)
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS
indom10.indomco.com. to: 217.174.200.97
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying IP 217.174.200.97:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: query throttled
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying to resolve NS 'indom30.indomco.fr.'
(5/5)
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Resolved 'lemonde.fr.' NS indom30.indomco.fr.
to: 213.205.102.3
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Trying IP 213.205.102.3:53, asking
'dechiffrages.blog.lemonde.fr.|A'
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: query throttled
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: Failed to resolve via any of the 5 offered NS
at level 'lemonde.fr.'
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: [637]
dechiffrages.blog.lemonde.fr.: failed (res=-1)
/var/log/messages:Jun 10 13:31:01 NS1 pdns_recursor[967]: 1 [637] answer to
question 'dechiffrages.blog.lemonde.fr.|A': 0 answers, 0 additional, took 3
packets, 2 throttled, 3 timeouts, 0 tcp connections, rcode=2

I can't understand why PDNS fails to look up the record. I see the SERVFAIL
answer, but why ?

We use PDNS Recursor 3.3.1.

Any help appreciated !

/DJ 
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