Pi-hole is a Linux network-level advertisement and internet tracker blocking application which acts as a DNS sinkhole, intended for use on a private network.
TrueNAS® SCALE is an Open Source Hyperconverged Infrastructure (HCI) solution. Built on TrueNAS CORE, SCALE adds Linux Containers, VMs (KVM), and scale-out ZFS storage capabilities.
Cloudflare DNS is an enterprise-grade authoritative DNS service that offers the fastest response time, unparalleled redundancy, and advanced security with built-in DDoS mitigation and DNSSEC.