Eucalyptus Cloud Platform

Eucalyptus is an open source Linux-based software architecture that implements scalable, efficiency-enhancing private and hybrid clouds within an organization's IT infrastructure. In essence, it is an open source cloud platform. Eucalyptus can be deployed without modification on all major Linux OS distributions including: Ubuntu, RHEL/CentOS, openSUSE, and Debian. Ubuntu distributions now include the Eucalyptus software core as the key component of the Ubuntu Enterprise Cloud.