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 known for its ease of use, extensive community support, and a wide range of available packages, making it suitable for both beginners and experienced users. In contrast, NixOS offers a unique declarative configuration model and rolling updates, appealing to advanced users who require strong reproducibility and customization.