Here it is a tutorial that explain how to proceed with relative installation and setting up.
https://www.howtoforge.com/tutorial/samba-4-domain-controller-installation-on-centos/
http://www.tecmint.com/category/samba4-active-directory/
Final result would be to have possibility to manage Centos 7/Linux server with normal RSAT tools like following screenshot.
- Windows 10: https://www.microsoft.com/en-us/download/details.aspx?id=45520
- Windows 8.1: http://www.microsoft.com/en-us/download/details.aspx?id=39296
- Windows 8: http://www.microsoft.com/en-us/download/details.aspx?id=28972
- Windows 7: http://www.microsoft.com/en-us/download/details.aspx?id=7887
Here they are some old blog posts:
Linux - Samba 4.1.0 Available for Download
Linux - Samba 4, finalmente uscito, compatibilità con Active Directory, Exchange e altro ancora
Linux - Dominio Samba - 1/7 - Cartella condivisa a tutti
Linux - Dominio Samba - SENZA Ldap
Linux - Dominio Samba - 3/7 - Installare Server LDAP in prospettiva di creare un dominio