Want to have your own LDAP server but don't want to use Windows Server or Active Directory? Take a look at FreeIPA. World-class security standards rolled up into a free and open-source product based on Linux.
In this video, we'll be installing it as a VM on unRAID using Fedora 33 Server Edition. I'll show you a few tips and tricks of Fedora as well as an explanation of how everything works. It's a little long with the explanation but you can skip straight to install if you prefer.