Hello, I though I could make those work together but I am stuck somewhere. On a Raspberry running DietPi, I’ve installed Pi-hole with unbound and NordVPN. I discovered that when NordVPN is connected, I can’t even dig other DNS server inside and outside my lan (I have another Raspberry running Pi-ho…

[image] PiHole + NordVPN? Help Commonly, VPN services would force DNS requests to their own DNS servers, in an attempt to prevent DNS leakages. In your case, that could mean that unbound will never actually talk to authoritative DNS servers, but to NordVPN's D…

Thank you for your support, yes, the intention was to use NordVPN as a gateway. It works if I use a recursive DNS in the Pi-hole configuration, and the NordVPN even allows me to set a custom DNS, but it seems indeed that the problem is somehow related to the unbound use of authoritative DNS via the…

It seems indeed a NordVPN limitation: Reddit: Unbound DNS over VPN issues So I am now trying to find a way to route Unbound traffic out of the tunnel, trying namespaces, virtual interfaces and so on, but so far I’ve been unable to accomplish nothing.

[image] dfx334: it seems indeed that the problem is somehow related to the unbound use of authoritative DNS via the VPN tunnel. Any validating recursive DNS resolver will discard a DNS reply when it detects that a reply was not served by the authoritative DNS server it intended to talk to. T…

[image] Bucking_Horn: If you'd succeed, you would leak DNS requests. Depending on your intentions for contracting a VPN service, this may defeat your purposes, e.g. you'd potentially expose your network's topological location (which is among the reasons why VPN service providers forcefully redi…

Unbound getting SERVFAIL when connected to NordVPN

Help

Bucking_Horn August 12, 2025, 9:01pm 2