A Linux dedicated server gives you a whole physical machine with no hypervisor in the way, but which distribution should you run on it? Ubuntu, Debian, the CentOS successors, and RHEL each make different trade-offs around release cadence, support, and cost. This guide explains what a bare-metal Linux server actually is, when it beats a VPS or cloud instance, and how to pick a distribution by workload and support needs, with a side-by-side comparison and links to the right server for each.