New option in 2.5 under General Settings, DNS Resolution Behavior- Use remote DNS Servers ignore local DNS, Use Local DNS 127.0.0.1, ignore remote DNS Servers, Use local DNS 127.0.0.1, fall back to remote DNS Servers, not sure which to use

[Spacey]

For anyone with the PFblockerng package I need some advice on the new DNS Resolver settings option,
Since I have PiHole listed in my DNS servers for IPv4 and 6 and pointed to CloudFlare on that side how would pointing it to local host help DNSBL it seems like an extra hop for me- and even then it does not point to a DNS (like Cloud Flare) and where does 10.10.10.1 come into play?

[jimp]

The new option combines some older GUI options and offers a new choice.

The "Use local DNS 127.0.0.1, ignore remote DNS servers" option will prevent the firewall itself from using alternate DNS servers if the local resolver is not responding. There are some cases where that could lead to DNS leaks for queries originating from the firewall when you want to force things like DNS over TLS to upstream servers.