Additional documentation for my homelab setup

Table of Contents

 1. DNS

 1. DNS

For my internal DNS, I use PiHole as my primary resolver, and the ISP router as
a secondary DNS resolver. Controlling both DNS servers is critical, because one
can not trust the order in which devices will try resolvers. For example on
macOS the order feels random, so setting 1.1.1.1 as the secondary resolver
sometimes resulted in unresolved domains.

Both resolvers use 1.1.1.1 and 8.8.8.8 as upstream servers.

Note: Apple TV seems to not care at all what I set as the resolver, so I need to
      have an internal address published on a public DNS server.