I was going to set up PiHole for a friend. Since she has an old Netbook available, I think why not using it. This sounds logical right? It would be if most distros are not 64bit only in their latest version. Also, I am looking for something small and lightweight.
At the end, I picked Linux Lite (https://www.linuxliteos.com/). Their Series 3 is still available in 32bit and because it is based on Ubuntu LTS, it is still in support till 2021.
Linux and PiHole installation is pretty standard and straightforward.
If you have issue to access the PiHole, you may want to check the firewall setting in Linux Lite. Also, it is worth to check the power saving option too to ensure the computer won't got to sleep.
