I have a small problem / doubt about the use of Samba4 as a central authenticator of external applications, I explain, I am instantiating a Samba4 server as a PDC for domain authentication for some computers with W10, but already taking advantage of it I wanted to configure it as a central authenticator for applications .
In many applications I see that they allow LDAP / AD connection, but it is not clear to me if it differs between LDAP and Active Directory, may it be necessary to use Samba4 in combination with OpenLDAP as a backend to authenticate applications? Or can only Samba4 be used for everything?
After trying to authenticate the logins of the applications through Samba4 (PHPIPAM, NextCloud, Proxmox, Nagios) I have only achieved a good user authentication in Proxmox, the other applications give me many problems.
In summary, someone who has experience configuring central authentication environments can clarify how I can mount the server and if I have to do it using Samba4 and LDAP, or only Samba4?