dns2blackhole
Malware Prevention through Domain Blocking (Black Hole)
... into the ports/package versions of unbound, named,
and dnsmask DNS servers to block those FQDN thus protecting user
devices from being compromised or bothered seeing things of no interest.
The base built-in version of unbound titled "local_unbound" can also be
configured to work using the dns2blackhole method. This black hole method
is another layer of protection that you can customize to your needs.