As the culmination of ten years’ work, the Samba Team has created the first compatible Free Software implementation of Microsoft’s Active Directory protocols. Familiar to all network administrators, the Active Directory protocols are the heart of modern directory service implementations.

via Samba – opening windows to a wider world.

Suitable for low-power and embedded applications, yet scaling to large clusters, Samba 4.0 is efficient and flexible. Its Python programming interface and administration toolkit help in enterprise deployments.