[Samba] File Server recognize users and groups AD

[Ricardo Pardim Claus]

>Sorry, but the lines you have added to the [global] section of 
>your smb.conf will do nothing on an AD DC. 

>Does 'getent group Domain\ Admins' produce any output ? 
>If not you need to set up libnss-winbind. 

>Rowland


Dear Rowland; 
I appreciate the contact. 

The commands: 
getent group 'DOMAIN\Domain Admins' 
getent group 'Domain Admins' 

Return nothing! 

When I run only this command: getent group 
It returns only Unix / Linux groups 

Regarding Smb.conf could show me what needs to be changed? 
This smb.conf refers to the secondary DC + file server. 

About libnss-winbind, could indicate some site so I can do a study?