impact of qname minimization with Unbound as forwarder

[A. Schulze]

Sohka via Unbound-users:

> I would like to configure Unbound as a DNS forwarder with Quad9 as the
> upstream recursive resolver.
>
> I read in their best practices document that the qname-minimization
> option should be disabled as it significantly reduces performance.
> https://docs.quad9.net/Quad9_For_Organizations/DNS_Forwarder_Best_Practices/#__tabbed_3_3

Hello,

well, qname-minimization limit "root's" knowlege that a client is  
interestes in foobar.mumble.example.org.
because the root nameserver can only answer "ask .org".
But if you forward any queries to one destination anyway, I see no  
value for qname-minimization.
So, yes quad9's suggestion sounds right to me.

Andreas