Ubuntu Server brings economic and technical scalability to your datacentre, public or private. Whether you want to deploy an OpenStack cloud, a Hadoop cluster or a 50,000-node render farm, Ubuntu Server delivers the best value scale-out performance available. Developed by Canonical Ltd
License: Open Source
Ubuntu Server is a versatile and highly customizable operating system suitable for various server roles, while Zentyal is a user-friendly server solution specifically designed for small to medium businesses, offering built-in features like Active Directory integration and a web-based management interface.