[Pdns-users] strange servfail

Martin domains at crystalline.nl
Thu Oct 29 16:10:53 UTC 2015


 

Hi, 

I have setup a simple MySQL backend for a domain with a few MX records,
a couple of A records, two NS records and a SOA record for the domain. 

All dig commands are run from a completely unrelated server: 

dig a www.example.com is working: it returns the right A record 

dig a example.com is working: it returns the right A record 

Now this is where things go wrong: 

dig a abc.example.com returns a SERVFAIL but I am expecting a NXDOMAIN
response because there is no A record for abc.example.com 

I checked the PowerDNS logs and this is there: 

Oct 29 16:44:45 ns1 pdns[27687]: Exception building answer packet
(Unknown DNS type 'example.example.com') sending out servfail
Oct 29 16:44:45 ns1 pdns[27687]: Exception building answer packet
(Unknown DNS type 'example.example.com') sending out servfail
Oct 29 16:44:45 ns1 pdns[27687]: Exception building answer packet
(Unknown DNS type 'example.example.com') sending out servfail
Oct 29 16:44:45 ns1 pdns[27687]: Exception building answer packet
(Unknown DNS type 'example.example.com') sending out servfail
Oct 29 16:44:45 ns1 pdns[27687]: Exception building answer packet
(Unknown DNS type 'example.example.com') sending out servfail

Five messages with unknow dns type 'domain.domain.tld'. 

I have tried an online tool like http://www.kloth.net/services/dig.php
as well and it generates the same error in the logs but only once
instead of five times. 

Can anyone point me in the right direction? I'm stumped. I'm running the
latest version on Debian. 

Thanks, 

Martin 
 
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