Purchase a Raspberry Pi.
If you have an older Raspberry Pi, use Raspberry Pi Imager to download and install the latest Raspbian image to a SD card. You can also use Etcher. Install the Raspbian Lite version (command line with no desktop). Read more.
Change default “raspberry” password for user “pi.” Read more.
Configure static IP. Read more.
sudo nano /etc/dhcpcd.conf
Option 1 curl -sSL https://install.pi-hole.net | bash Option 2 git clone --depth 1 https://github.com/pi-hole/pi-hole.git Pi-hole cd "Pi-hole/automated install/" sudo bash basic-install.sh Option 3 wget -O basic-install.sh https://install.pi-hole.net sudo bash basic-install.sh
Enable SSH. Read more.
Keep Raspberry Pi + Pi-hole updated.
sudo apt update sudo apt full-upgrade pihole -up
In Pi-hole, configure Custom DNS to use CleanBrowsing.