Cannot resolve one specific host

mkcharlie

Hello,

Using unbound resolver since a couple of years. Never had problems, but now I cannot resolve one specific hostname: "actauni.com" from all clients in the network.

Server:  UnKnown
Address:  10.70.10.1

*** UnKnown can't find actauni.com: Server failed

However, doing the lookup from the Diagnostics page works just fine. Also doing a dig +trace on the PFsense box seems to give a nice result:

I enabled logging, but do not see any firewall blocks. Also disabled PFBlockerNG and the issue persists. Any ideas that I can try to troubleshoot?

Gertjan

@mkcharlie said in Cannot resolve one specific host:

actauni.com

nslookup on my pfSEnse :

[22.05-RELEASE][root@pfSense.local.net]/root: nslookup actauni.com
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
Name:   actauni.com
Address: 185.45.67.217

nslookup on a PC :

C:\Users\Gertjan>nslookup actauni.com
Serveur :   pfSense.local.net
Address:  192.168.1.1

Réponse ne faisant pas autorité :
Nom :    actauni.com
Address:  185.45.67.217

Btw : 192.168.1.1 is the IP of my pfSense.