DNS/StubResolver/dnsdistについて、ここに記述してください。

https://dnsdist.org/
dnsdist Overview

dnsdist is a highly DNS-, DoS- and abuse-aware loadbalancer.

 Its goal in life is to route traffic to the best server, delivering top performance to legitimate users while shunting or blocking abusive traffic.

Running dnsdist

https://dnsdist.org/install.html

https://dnsdist.org/quickstart.html