Fixing wg-quick's DNS= directive with a hatchet

[Geo Kozey]

On Thu, 26 Oct 2017, Jason A. Donenfeld wrote:

>Before I describe the hatchet, though, it might be worthwhile to
>remind ourselves of the three goals of DNS setting in this
>environment: a) be the exclusive DNS entry, b) restore the previous
>settings when the wireguard interface is removed, and c) not allow
>other things on the system (like roving dhcp daemons) to overwrite our
>settings.

What about usecases where more nameservers are needed, i.e. local nameserver used for caching, adblocking or whatever?