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@davidstrauss
Last active September 10, 2015 23:17
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Trace from PowerDNS Recursor

Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: 2 [4/1] question for 'na32.salesforce.com.|AAAA' from 127.0.0.1
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Looking for CNAME cache hit of 'na32.salesforce.com.|CNAME'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: No CNAME cache hit of 'na32.salesforce.com.|CNAME' found
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: No cache hit for 'na32.salesforce.com.|AAAA', trying to find an appropriate NS record
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Checking if we have NS in cache for 'na32.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: no valid/useful NS in cache for 'na32.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Checking if we have NS in cache for 'salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns01.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns02.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns03.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns04.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns05.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns06.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns1.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns2.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns3.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns4.salesforce.com.'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: within bailiwick: 1,  in cache, ttl=86297
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: We have NS in cache for 'salesforce.com.' (flawedNSSet=0)
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Cache consultations done, have 10 NS to contact
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Nameservers: dns05.salesforce.com.(0.00ms), dns02.salesforce.com.(0.00ms), dns06.salesforce.com.(0.00ms),
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.:              ns2.salesforce.com.(0.00ms), dns01.salesforce.com.(0.00ms), ns4.salesforce.com.(0.00ms),
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.:              ns1.salesforce.com.(0.00ms), dns04.salesforce.com.(0.00ms), ns3.salesforce.com.(1.79ms),
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.:              dns03.salesforce.com.(1.92ms)
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Trying to resolve NS 'dns05.salesforce.com.' (1/10)
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4]    dns05.salesforce.com.: Looking for CNAME cache hit of 'dns05.salesforce.com.|CNAME'
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4]    dns05.salesforce.com.: No CNAME cache hit of 'dns05.salesforce.com.|CNAME' found
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4]    dns05.salesforce.com.: Found cache hit for A: 204.74.114.235[ttl=86297]
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Resolved 'salesforce.com.' NS dns05.salesforce.com. to: 204.74.114.235
Sep 10 16:04:13 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Trying IP 204.74.114.235:53, asking 'na32.salesforce.com.|AAAA'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: Got 4 answers from dns05.salesforce.com. (204.74.114.235), rcode=0 (No Error), aa=1, in 66ms
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: accept answer 'na32.salesforce.com.|CNAME|na32-dfw.salesforce.com.' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: accept answer 'na32-dfw.salesforce.com.|CNAME|na32-dfw.dfw.r.salesforce.com.' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: accept answer 'dfw.r.salesforce.com.|NS|ns1-dfw.salesforce.com.' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: accept answer 'ns1-dfw.salesforce.com.|A|136.147.63.1' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: determining status after receiving this packet
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: status=got a CNAME referral, starting over with na32-dfw.salesforce.com.
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Looking for CNAME cache hit of 'na32-dfw.salesforce.com.|CNAME'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: No CNAME cache hit of 'na32-dfw.salesforce.com.|CNAME' found
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: No cache hit for 'na32-dfw.salesforce.com.|AAAA', trying to find an appropriate NS record
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Checking if we have NS in cache for 'na32-dfw.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: no valid/useful NS in cache for 'na32-dfw.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Checking if we have NS in cache for 'salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns01.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns02.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns03.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns04.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns05.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'dns06.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns1.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns2.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns3.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: NS (with ip, or non-glue) in cache for 'salesforce.com.' -> 'ns4.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: within bailiwick: 1,  in cache, ttl=86296
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: We have NS in cache for 'salesforce.com.' (flawedNSSet=0)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Cache consultations done, have 10 NS to contact
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Nameservers: dns06.salesforce.com.(0.00ms), dns01.salesforce.com.(0.00ms), dns02.salesforce.com.(0.00ms),
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.:              ns4.salesforce.com.(0.00ms), ns1.salesforce.com.(0.00ms), ns2.salesforce.com.(0.00ms),
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.:              dns04.salesforce.com.(0.00ms), ns3.salesforce.com.(1.79ms), dns03.salesforce.com.(1.92ms),
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.:              dns05.salesforce.com.(66.22ms)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Trying to resolve NS 'dns06.salesforce.com.' (1/10)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]     dns06.salesforce.com.: Looking for CNAME cache hit of 'dns06.salesforce.com.|CNAME'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]     dns06.salesforce.com.: No CNAME cache hit of 'dns06.salesforce.com.|CNAME' found
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]     dns06.salesforce.com.: Found cache hit for A: 204.74.115.235[ttl=86296]
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Resolved 'salesforce.com.' NS dns06.salesforce.com. to: 204.74.115.235
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Trying IP 204.74.115.235:53, asking 'na32-dfw.salesforce.com.|AAAA'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: Got 3 answers from dns06.salesforce.com. (204.74.115.235), rcode=0 (No Error), aa=1, in 26ms
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: accept answer 'na32-dfw.salesforce.com.|CNAME|na32-dfw.dfw.r.salesforce.com.' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: accept answer 'dfw.r.salesforce.com.|NS|ns1-dfw.salesforce.com.' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: accept answer 'ns1-dfw.salesforce.com.|A|136.147.63.1' from 'salesforce.com.' nameservers? YES!
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: determining status after receiving this packet
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: status=got a CNAME referral, starting over with na32-dfw.dfw.r.salesforce.com.
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Looking for CNAME cache hit of 'na32-dfw.dfw.r.salesforce.com.|CNAME'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: No CNAME cache hit of 'na32-dfw.dfw.r.salesforce.com.|CNAME' found
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: No cache hit for 'na32-dfw.dfw.r.salesforce.com.|AAAA', trying to find an appropriate NS record
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Checking if we have NS in cache for 'na32-dfw.dfw.r.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: no valid/useful NS in cache for 'na32-dfw.dfw.r.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Checking if we have NS in cache for 'dfw.r.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: NS (with ip, or non-glue) in cache for 'dfw.r.salesforce.com.' -> 'ns1-dfw.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: within bailiwick: 0, not in cache / did not look at cache
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: We have NS in cache for 'dfw.r.salesforce.com.' (flawedNSSet=0)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Cache consultations done, have 1 NS to contact
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Nameservers: ns1-dfw.salesforce.com.(9.29ms)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Trying to resolve NS 'ns1-dfw.salesforce.com.' (1/1)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]      ns1-dfw.salesforce.com.: Looking for CNAME cache hit of 'ns1-dfw.salesforce.com.|CNAME'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]      ns1-dfw.salesforce.com.: No CNAME cache hit of 'ns1-dfw.salesforce.com.|CNAME' found
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]      ns1-dfw.salesforce.com.: Found cache hit for A: 136.147.63.1[ttl=300]
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Resolved 'dfw.r.salesforce.com.' NS ns1-dfw.salesforce.com. to: 136.147.63.1
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Trying IP 136.147.63.1:53, asking 'na32-dfw.dfw.r.salesforce.com.|AAAA'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Got 0 answers from ns1-dfw.salesforce.com. (136.147.63.1), rcode=0 (No Error), aa=0, in 51ms
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: determining status after receiving this packet
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: status=NS ns1-dfw.salesforce.com. (136.147.63.1) is lame for 'dfw.r.salesforce.com.', trying sibling IP or NS
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: Failed to resolve via any of the 1 offered NS at level 'dfw.r.salesforce.com.'
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]   na32-dfw.dfw.r.salesforce.com.: failed (res=-1)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4]  na32-dfw.salesforce.com.: failed (res=2)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: [4] na32.salesforce.com.: failed (res=2)
Sep 10 16:04:14 titan.davidstrauss.net pdns_recursor[27241]: 2 [4/1] answer to question 'na32.salesforce.com.|AAAA': 2 answers, 0 additional, took 3 packets, 144.457 ms, 0 throttled, 0 timeouts, 0 tcp connections, rcode=2

Issue unique to Salesforce DFW nameservers

[straussd@titan ~] $ dig @127.0.0.1 na30.salesforce.com AAAA

; <<>> DiG 9.10.2-P4-RedHat-9.10.2-5.P4.fc22 <<>> @127.0.0.1 na30.salesforce.com AAAA
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25352
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;na30.salesforce.com.		IN	AAAA

;; ANSWER SECTION:
na30.salesforce.com.	0	IN	CNAME	na30-was.salesforce.com.

;; AUTHORITY SECTION:
salesforce.com.		10	IN	SOA	dns01.salesforce.com. hostmaster.salesforce.com. 2015081941 600 900 2678400 10

;; Query time: 44 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Sep 10 16:15:41 PDT 2015
;; MSG SIZE  rcvd: 113

[straussd@titan ~] $ dig @127.0.0.1 na20.salesforce.com AAAA

; <<>> DiG 9.10.2-P4-RedHat-9.10.2-5.P4.fc22 <<>> @127.0.0.1 na20.salesforce.com AAAA
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19541
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;na20.salesforce.com.		IN	AAAA

;; ANSWER SECTION:
na20.salesforce.com.	0	IN	CNAME	na20-chi.salesforce.com.

;; AUTHORITY SECTION:
salesforce.com.		10	IN	SOA	dns01.salesforce.com. hostmaster.salesforce.com. 2015081941 600 900 2678400 10

;; Query time: 71 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Sep 10 16:16:07 PDT 2015
;; MSG SIZE  rcvd: 113

[straussd@titan ~] $ dig @127.0.0.1 na32.salesforce.com AAAA

; <<>> DiG 9.10.2-P4-RedHat-9.10.2-5.P4.fc22 <<>> @127.0.0.1 na32.salesforce.com AAAA
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38714
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;na32.salesforce.com.		IN	AAAA

;; ANSWER SECTION:
na32.salesforce.com.	0	IN	CNAME	na32-dfw.salesforce.com.
na32-dfw.salesforce.com. 0	IN	CNAME	na32-dfw.dfw.r.salesforce.com.

;; Query time: 134 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Sep 10 16:16:27 PDT 2015
;; MSG SIZE  rcvd: 89

Related topics

"Bug" for PowerDNS that ended up being a broken zone: PowerDNS/pdns#1344

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