Conditional Forwarding Meaning/How it Works?

[yubiuser]

Conditional forwarding: how does it work?

Public DNS servers do not know anything about your local network, so this information has to be sourced from within your network originally. "these requests" refer to local hostname lookups (A/AAAA) or reverse lookups (PTR) that will not produce a name or an IP respectively if Pi-hole has no way of determining them (so, indirectly to "...won't be able to determine..."). When Pi-hole is acting as DHCP server, clients requesting an IPv4 lease will also provide a hostname, and Pi-hole's embedded d…