[Pdns-users] Problems with PowerDNS and specific Domain

[Winfried Angele]

Hello Markus,

The Authoritative nameservers does not talk to your Recursors (timeouts):

Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: Trying IP 
62.128.193.35:53, asking 'ws.igspn.com|A'
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: timeout resolving 
after 1574.81msec
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: Trying to resolve 
NS 'ns2.namecity.com' (2/2)
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: Resolved 
'igspn.com' NS ns2.namecity.com to: 84.22.161.171
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: Trying IP 
84.22.161.171:53, asking 'ws.igspn.com|A'
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: timeout resolving 
after 1514.68msec
Feb  2 08:33:39 ns1 pdns_recursor[916]: ws.igspn.com: Failed to resolve 
via any of the 2 offered NS at level 'igspn.com'

This might mean that your Recursor IP addresses are blocked there or it 
is a routing problem.

Winfried


On 02.02.23 11:13, Markus Ehrlicher via Pdns-users wrote:
> Hello together,
> 
> since a few days, we have massive problems with DNS-lookup for a specific domain (ws.igspn.com) from our two recursors (PDNS-Recursor 4.8.2 on Ubuntu 18.04LTS). On my first investigation, I thought that bad latency to the responsible nameservers is the problem, but if I do a forward-zones-recurse to Google (forward-zones-recurse=igspn.com=8.8.8.8), everything works like a charm. I traced both lookups, but I can't find a clue, what could be wrong on our side. Can someone test from another location, to rule out that it is a PowerDNS problem? Any other suggestions?
> ...