[Pdns-users] pdns query wrong SOA records with ipv6 and miss the right domain this way

[Oliver Dzombic]

Hi folks,

for some reason i dont understand, powerdns does not query the SOA
records until the end to find the correct domain.

This works:

host 2a00:12d8:0013:1675:0000:0000:0000:0001


Powerdns will start query:

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='SOA' and
name='1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.7.6.1.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'

down to

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='SOA' and name='3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'

where it finds finally a SOA record and the domain_id and is able to
give the correct answer.

And then continue its work with the correct domain_id=7608:

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='NS' and
name='1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.7.6.1.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'
and domain_id=7608


And deliver the correct result at the end.

------------------

Now this does not work:


host 2a00:12d8:0013:0000:0209:fc37:b2e9:4449


It starts correctly:

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='SOA' and
name='9.4.4.4.9.e.2.b.7.3.c.f.9.0.2.0.0.0.0.0.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'


but it stops here:

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='SOA' and
name='7.3.c.f.9.0.2.0.0.0.0.0.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'

and as a result it will start query:

SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records
WHERE disabled=0 and type='NS' and
name='9.4.4.4.9.e.2.b.7.3.c.f.9.0.2.0.0.0.0.0.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa'
and domain_id=0

with domain_id=0 which will of course not work.


And so it will end up

Host
9.4.4.4.9.e.2.b.7.3.c.f.9.0.2.0.0.0.0.0.3.1.0.0.8.d.2.1.0.0.a.2.ip6.arpa
not found: 3(NXDOMAIN)


So why does it stop there ?

Its both 2a00:12d8:0013. And both are in the same domain/zone/dns servers.

Thats PowerDNS Authoritative Server 4.2.3

Thank you for any hint and stay healty :-)


-- 
Mit freundlichen Gruessen / Best regards

Oliver Dzombic
Layer7 Networks

mailto:info at layer7.net

Anschrift:

Layer7 Networks GmbH
Zum Sonnenberg 1-3
63571 Gelnhausen

HRB 96293 beim Amtsgericht Hanau
Geschäftsführung: Oliver Dzombic
UST ID: DE259845632