Windows Server 2012 is a server operating system developed by Microsoft and released in September 2012. It is the successor to Windows Server 2008 R2 and is based on Windows 8. It is designed to provide a secure, reliable, and efficient server platform for businesses of all sizes. Windows Server 2012 provides a comprehensive server platform for organizations of any size. It offers improved performance, scalability, and security over previous versions of the server. It includes the latest technologies such as Hyper-V, the virtualization platform, to allow for virtual machine hosting, and storage technologies such as Storage Spaces to improve storage management. It also includes features such as network virtualization and server-level encryption to help secure data and ensure compliance with regulations. Windows Server 2012 also includes features such as Active Directory Domain Services to provide a single point of authentication for users and applications, and Group Policy to manage user and computer settings. It also includes Remote Desktop Services to provide access to Windows applications from any remote location. Finally, Windows Server 2012 includes a range of tools to help manage and monitor server performance, such as Performance Monitor, Event Viewer, and Task Manager.
The original Zentyals project was to build a Linux Windows AD server. That is not the case now, it is more of an Exchange Mail clone.