Unbound 1.13.1 - Cannot resolve host

Fong unbound at fongaboo.com
Fri Jun 25 17:40:45 UTC 2021 

Sorry folks I guess I didn't write Robert directly... Carry on...

On Fri, 25 Jun 2021, Fong via Unbound-users wrote:

>
> No suggestions yet... But writing you directly because I'm wondering if I can 
> query your unbound server since we're in your house and monkey a bit?
>
>
> FONG
>
>
>
> On Fri, 25 Jun 2021, Robert Blayzor via Unbound-users wrote:
>
>> I have a very strange issue with a domain that works on none of my unbound 
>> caching servers. Looking this domain up directly using bind dig & drill 
>> trace seems to complete. Also if I asked the authoritative answers all is 
>> good. If i ask Google or Cloudflare public servers, things are fine.
>> 
>> 
>> Domain:  bborganizing.com
>> 
>> When running through unbound-host debug I get:
>> 
>> [1624636494] libunbound[49228:0] debug: request has exceeded the maximum 
>> number of nxdomain nameserver lookups with 6
>> [1624636494] libunbound[49228:0] debug: return error response SERVFAIL
>> [1624636494] libunbound[49228:0] debug: validator[module 0] operate: 
>> extstate:module_wait_module event:module_event_moddone
>> [1624636494] libunbound[49228:0] info: validator operate: query 
>> bborganizing.com. A IN
>> Host bborganizing.com not found: 2(SERVFAIL). (error)
>> 
>> 
>> 
>> Which is due to the fact it's name server do not seem to resolve. The name 
>> servers listed are ns6517.hostgator.com and ns6518.hostgator.com. If I 
>> asked those servers directly, things work, but if I look them up through 
>> our unbound servers, I get a serve fail.
>> 
>> Keep in mind, this works through bind name servers and others, just not 
>> unbound... stumped...
>> 
>> 
>> 
>> unbound-host  -t a -v -dd ns6517.hostgator.com
>> 
>> [1624637282] libunbound[49252:0] debug: switching log to stderr
>> [1624637282] libunbound[49252:0] debug: module config: "validator iterator"
>> [1624637282] libunbound[49252:0] notice: init module 0: validator
>> [1624637282] libunbound[49252:0] notice: init module 1: iterator
>> [1624637282] libunbound[49252:0] debug: target fetch policy for level 0 is 
>> 0
>> [1624637282] libunbound[49252:0] debug: target fetch policy for level 1 is 
>> 0
>> [1624637282] libunbound[49252:0] debug: target fetch policy for level 2 is 
>> 0
>> [1624637282] libunbound[49252:0] debug: target fetch policy for level 3 is 
>> 0
>> [1624637282] libunbound[49252:0] debug: target fetch policy for level 4 is 
>> 0
>> [1624637282] libunbound[49252:0] debug: Reading root hints from named.cache
>> [1624637282] libunbound[49252:0] info: DelegationPoint<.>: 13 names (0 
>> missing), 26 addrs (0 result, 26 avail) parentNS
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_new
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: resolving ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: priming . IN NS
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: iterator operate: query . NS IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: . NS IN
>> [1624637282] libunbound[49252:0] info: sending query: . NS IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 192.58.128.30#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query . NS IN
>> [1624637282] libunbound[49252:0] info: response for . NS IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 192.58.128.30#53
>> [1624637282] libunbound[49252:0] info: query response was ANSWER
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query . NS IN
>> [1624637282] libunbound[49252:0] info: priming successful for . NS IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_subquery event:module_event_pass
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2): 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3): 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: removing 2 labels
>> [1624637282] libunbound[49252:0] info: sending query: com. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 202.12.27.33#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: response for ns6517.hostgator.com. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 202.12.27.33#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: removing 1 labels
>> [1624637282] libunbound[49252:0] info: sending query: hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <com.> 
>> 2001:500:856e::30#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: response for ns6517.hostgator.com. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <com.> 
>> 2001:500:856e::30#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: new target dns2.p06.nsone.net. AAAA 
>> IN
>> [1624637282] libunbound[49252:0] info: new target dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: resolving dns2.p06.nsone.net. AAAA 
>> IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2): 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3): 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] debug: removing 3 labels
>> [1624637282] libunbound[49252:0] info: sending query: net. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 198.41.0.4#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: resolving dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2): 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3): 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: removing 3 labels
>> [1624637282] libunbound[49252:0] info: sending query: net. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 192.33.4.12#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 192.33.4.12#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: removing 2 labels
>> [1624637282] libunbound[49252:0] info: sending query: nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <net.> 
>> 2001:501:b1f9::30#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. 
>> AAAA IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 198.41.0.4#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] debug: removing 2 labels
>> [1624637282] libunbound[49252:0] info: sending query: nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <net.> 
>> 192.54.112.30#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <net.> 
>> 2001:501:b1f9::30#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: removing 1 labels
>> [1624637282] libunbound[49252:0] info: sending query: p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <nsone.net.> 
>> 2620:4d:4000:6259:7:1:0:3#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <nsone.net.> 
>> 2620:4d:4000:6259:7:1:0:3#53
>> [1624637282] libunbound[49252:0] info: query response was nodata ANSWER
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: sending query: dns2.p06.nsone.net. A 
>> IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <nsone.net.> 
>> 198.51.44.65#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <nsone.net.> 
>> 198.51.44.65#53
>> [1624637282] libunbound[49252:0] info: query response was ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> dns2.p06.nsone.net. A IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_subquery event:module_event_pass
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: sending query: ns6517.hostgator.com. 
>> A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <hostgator.com.> 
>> 198.51.45.6#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: sanitize: removing public name with 
>> private address <ns6517.hostgator.com.> 192.254.235.225#53
>> [1624637282] libunbound[49252:0] info: response for ns6517.hostgator.com. A 
>> IN
>> [1624637282] libunbound[49252:0] info: reply from <hostgator.com.> 
>> 198.51.45.6#53
>> [1624637282] libunbound[49252:0] info: query response was nodata ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_module event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: prime trust anchor
>> [1624637282] libunbound[49252:0] info: generate keytag query _ta-4f66. NULL 
>> IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: validator operate: query . DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: resolving . DNSKEY IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2):  . DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3):  . DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: . DNSKEY IN
>> [1624637282] libunbound[49252:0] info: sending query: . DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 192.203.230.10#53
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: validator operate: query _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: resolving _ta-4f66. NULL IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2): _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3): _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: _ta-4f66. NULL 
>> IN
>> [1624637282] libunbound[49252:0] info: sending query: _ta-4f66. A IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <.> 
>> 2001:500:2d::d#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query . DNSKEY IN
>> [1624637282] libunbound[49252:0] info: response for . DNSKEY IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 192.203.230.10#53
>> [1624637282] libunbound[49252:0] info: query response was ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for . DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_module event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query . DNSKEY IN
>> [1624637282] libunbound[49252:0] info: validate keys with anchor(DS): 
>> sec_status_secure
>> [1624637282] libunbound[49252:0] info: Successfully primed trust anchor . 
>> DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_subquery event:module_event_pass
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: validated DS com. DS IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: validator operate: query com. DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_state_initial event:module_event_pass
>> [1624637282] libunbound[49252:0] info: resolving com. DNSKEY IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 2):  com. 
>> DNSKEY IN
>> [1624637282] libunbound[49252:0] info: resolving (init part 3):  com. 
>> DNSKEY IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: com. DNSKEY IN
>> [1624637282] libunbound[49252:0] info: sending query: com. DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <com.> 
>> 192.48.79.30#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] info: response for _ta-4f66. NULL IN
>> [1624637282] libunbound[49252:0] info: reply from <.> 2001:500:2d::d#53
>> [1624637282] libunbound[49252:0] info: query response was NXDOMAIN ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_module event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query _ta-4f66. 
>> NULL IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. 
>> AAAA IN
>> [1624637282] libunbound[49252:0] info: reply from <net.> 192.54.112.30#53
>> [1624637282] libunbound[49252:0] info: query response was REFERRAL
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] debug: removing 1 labels
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: processQueryTargets: 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: sending query: dns2.p06.nsone.net. 
>> AAAA IN
>> [1624637282] libunbound[49252:0] debug: sending to target: <nsone.net.> 
>> 198.51.44.1#53
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] info: response for dns2.p06.nsone.net. 
>> AAAA IN
>> [1624637282] libunbound[49252:0] info: reply from <nsone.net.> 
>> 198.51.44.1#53
>> [1624637282] libunbound[49252:0] info: query response was ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_state_initial event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> dns2.p06.nsone.net. AAAA IN
>> [1624637282] libunbound[49252:0] debug: iterator[module 1] operate: 
>> extstate:module_wait_reply event:module_event_reply
>> [1624637282] libunbound[49252:0] info: iterator operate: query com. DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] info: response for com. DNSKEY IN
>> [1624637282] libunbound[49252:0] info: reply from <com.> 192.48.79.30#53
>> [1624637282] libunbound[49252:0] info: query response was ANSWER
>> [1624637282] libunbound[49252:0] info: finishing processing for com. DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_module event:module_event_moddone
>> [1624637282] libunbound[49252:0] info: validator operate: query com. DNSKEY 
>> IN
>> [1624637282] libunbound[49252:0] info: validated DNSKEY com. DNSKEY IN
>> [1624637282] libunbound[49252:0] debug: validator[module 0] operate: 
>> extstate:module_wait_subquery event:module_event_pass
>> [1624637282] libunbound[49252:0] info: validator operate: query 
>> ns6517.hostgator.com. A IN
>> [1624637282] libunbound[49252:0] info: NSEC3s for the referral proved no 
>> DS.
>> [1624637282] libunbound[49252:0] info: Verified that unsigned response is 
>> INSECURE
>> ns6517.hostgator.com has no address (insecure)
>> 
>> 
>> 
>> 
>

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