Is there a simple Active Directory option?

Question

linux

There are 4 Windows 10 computers.
You need to include them in the domain so that you can log in with your username / password on any computer and so that the home folder is pulled up . The
question is that you need a domain implementation with the simplest possible settings and only these two functions are needed. Any operating system, these are all virtual machines and X's, it's not a problem to put it under this business

Answer 1

Samba can do it.

Answer 2

perverted. 2 servers for 4 client computers. very expensive