Ubuntu Server LTS releases provide five years of security updates and a massive package repository that includes virtually every server application you might need. This long support window means you can deploy your server once and run it reliably for years without major upgrades or migration hassles.
Ubuntu's popularity also means that tutorials, documentation, and community support are abundant for every conceivable use case. Whether you are setting up a web server, a database cluster, a VPN, or a Docker host, you will find step-by-step Ubuntu-specific guides readily available. This makes Ubuntu the ideal choice for both beginners and experienced administrators.