Windows vs Linux for Cloud Servers

I once watched a client burn four months on a $40/month Windows instance running a Node app that would've been happier, and cheaper, on Linux. Nobody had a reason. It's just what the last guy set up. That's the trap: the OS choice at provisioning time feels like a formality, but it decides your licensing cost, what software actually runs cleanly, and how you'll manage the box for as long as it's alive.

Licensing is the easiest place to start because it's just math. Linux distributions are free. No fee baked in anywhere, no matter which flavor you pick. Windows Server carries a real licensing cost folded into the hourly rate, which is why a Windows box on any given provider costs more than the Linux equivalent, sometimes a lot more once you're running several instances. Worth doing that math before defaulting to Windows out of habit.

Software compatibility usually settles the question on its own. If your stack needs .NET Framework, IIS, or Active Directory integration, Windows is the only option and there's no point arguing with it. Everything else, Node, Python, Ruby, Go, containers, most databases, runs better on Linux, where the tooling is more mature and better documented. Plenty of software technically runs on both. In practice it's built, tested, and supported primarily on Linux, and Windows quietly inherits the friction.

Then there's the operational side, which nobody thinks about until they're six months into a deployment pipeline that doesn't quite work. Linux boxes get managed over SSH with plain-text config, which happens to be what basically every infrastructure-as-code tool assumes: Ansible, most Terraform providers, your CI runner. Windows leans on GUI tools and PowerShell instead. Works fine on its own terms. Just a much smaller ecosystem for cloud automation.

Default to Linux. Pick Windows only when something specific forces it: a legacy .NET app you're not rewriting, a vendor requirement, a team that's only ever run Windows boxes. Outside of those, Linux wins on cost and on how well it plays with everything you'll eventually want to automate. When you're comparing providers here, check the pricing table for a separate Windows tier. That gap is real, and it's bigger than most people expect.