FOSS-Cloud (FOSS-Cloud software and hardware) is an integrated and redundant server infrastructure to provide virtualization- and cloud-services, Windows or Linux based SaaS-, Terminal Server-, Virtual Desktop Infrastructure (VDI) or virtual server environments. FOSS-Cloud covers all aspects of a virtualized IT environment. FOSS-Cloud is a pure Open Source solution, is licensed under EUPL and is available on the sourceforge.net. FOSS-Cloud is the most advanced Open Source Cloud.