There are 2 repositories under recursive-dns topic.
Secure (DNS-over-TLS) Adblocking (Pi-hole) Recursive (unbound) Server System setup
Deploy a fast recursive DNS server with Ansible.
Set up Pi-hole as truly self-contained DNS resolver
Small Alpine based image for unbound - the validating and caching recursive DNS resolver.
Guide for setting up RaspeberryPi5 for PiHole
Mega CCNA project - Entreprise network