Feedback on Services — DNS — Configuring the DNS Resolver
Does not explain how DNS resolver "resolves". When I run DNS tests in pfsense, it returns metrics for DNS servers I have configured. But I also saw a pfsense developer presentation talking about the Resolver (2018), and the statement there is that the resolver does random queries to Root servers, with no explanation of how it finds these Root servers or if it is customize able short of a multi-wan configuration consideration. It is important to know the basics of how the Resolver works (before options are picked which modify behavior). I have noticed latency issues when using it, but I have no information to determine what the possible issues could be because of lack of information on the basic operation of unbound.