Integrated Unbound from GUI

[jfb]

Note that a similar feature request to add integrated DNS over TLS was closed as out of scope.

Implement DNS-over-TLS capability in Pi-hole

Requested behaviour Although there is an experimental implementation of DNS-over-TLS through the use of Stubby, official support coming to Pi-hole would greatly enhance the privacy aspects of the Pi-hole. DNS-over-TLS is in essence an encrypted tunnel through which the DNS-requests are send. Man-in-the-Middle (MitM) attacks on this traffic would result in captured encrypted data. DNS-over-TLS (port 853) is not to be confused with DNS-over-HTTPS (port 443) and DNSCrypt (port 53). DNS-over-HTTPS…