Ubuntu 11.04 64bit Server CD is Lean, fast and powerful, Ubuntu Server delivers services reliably, predictably and economically – and it easily integrates with your existing infrastructure. This release incorporates the Desktop edition and the Server edition. The Server edition can be used on physical servers, on Ubuntu Enterprise Cloud (UEC), and on Amazon's EC2 public cloud. 11.04 LTS continues Ubuntu's proud tradition of integrating the latest and greatest open source technologies into a high-quality, easy-to-use Linux distribution. Ubuntu Server mixes effortlessly with Ubuntu, Windows or Mac OS environments. All clients can share authentication, swap files and access services, while Open LDAP, Likewise-Open and PAM authentication come as standard. Ubuntu11.04 64bit Server CD can be used only with 64bit machine only. For further details please visit: http://www.ubuntu.com/server.

About Ubuntu

Super-fast and great-looking, Ubuntu is a secure, intuitive operating system that powers desktops, servers, netbooks and laptops. Ubuntu is, and always will be, absolutely free.It is a complete desktop Linux operating system, freely available with both community and professional support. The Ubuntu community is built on the ideas enshrined in the Ubuntu Manifesto: that software should be available free of charge, that software tools should be usable by people in their local language and despite any disabilities, and that people should have the freedom to customise and alter their software in whatever way they see fit. "Ubuntu" is an ancient African word, meaning "humanity to others". The Ubuntu distribution brings the spirit of Ubuntu to the software world.