[Samba] stand-alone server with ldap-auth without AD

[lists at zxt10d.de]

Hi,

is possible to configure a stand-alone samba server with 
authentification versus a readonly ldap (proxy) using 'passdb backend = 
ldapsam', sssd or winbindd, or something else, but not setting-up or 
joining an AD. Reason for this: ~30% of the computers using that 
samba-services are private computers, who's owners don't want to join an AD.

Thanks in advance!

Cheers,
Torsten