Choosing a Linux Distribution for Servers: Ubuntu, Debian, AlmaLinux

The first question when ordering a VPS is often "which operating system?", and the internet's answers are loud. The good news is that for a web server the differences are smaller than the arguments suggest. All the major server distributions run the same web servers, databases and languages. What differs is how long each release is supported, how you install packages, and which tutorials and tools match your system. This guide helps you choose sensibly.

What really matters on a server

• Support lifecycle. How many years will you get security updates for this release? A server you install today should be supported for years, not months.
• Stability over novelty. Servers value predictable behaviour. Distributions aimed at servers avoid big changes within a release.
• Package ecosystem. Does the software you need exist in the standard repositories, and is it recent enough?
• Documentation and community. The more people use a system, the easier it is to find a fix at 2 a.m.
• Your own experience. The distribution you know well is the one you will secure and troubleshoot best.
• Control panel compatibility. If you want Plesk or another panel, check that it supports your chosen OS release.

The mainstream choices

Ubuntu Server LTS

Ubuntu publishes a long-term support release every two years, with standard security maintenance for five years. It is probably the most popular server distribution for developers, has a vast amount of tutorials and up-to-date packages, and uses apt. Always choose an LTS version for servers; the interim releases between them are supported for a much shorter time and are meant for desktops and testing.

Debian

Debian is the foundation that Ubuntu builds on. Its stable release emphasises conservative, thoroughly tested packages and is known for reliability. The trade-off is that its software versions can be older than Ubuntu's, though backports and vendor repositories fill gaps. It also uses apt and dpkg, so skills transfer directly between the two.

AlmaLinux and Rocky Linux

These are community distributions built to be compatible with Red Hat Enterprise Linux (RHEL), and they follow its long lifecycles. They use dnf and rpm, SELinux is enabled by default, and configuration conventions follow the Red Hat world. They are a natural fit for people with RHEL experience, and for software that is certified for or documented against RHEL.

What happened to CentOS?

CentOS Linux used to be the free, popular RHEL clone. CentOS Linux 8 reached end of life at the end of 2021, earlier than planned, and CentOS Linux 7 reached end of life on 30 June 2024. CentOS Stream still exists, but it tracks slightly ahead of RHEL and is a different proposition. AlmaLinux and Rocky Linux emerged largely to fill the gap. If you find a tutorial for CentOS 7, the commands usually still work on AlmaLinux or Rocky, but never install an end-of-life system on a new server.

A quick comparison

	Ubuntu LTS	Debian stable	AlmaLinux / Rocky
Package manager	apt	apt	dnf
Firewall tool	ufw	nftables or ufw	firewalld
Mandatory access control	AppArmor	AppArmor	SELinux
Software versions	Fairly current	Conservative	Conservative
Best for	Developers, most tutorials	Stability purists	RHEL-style environments

Distributions to approach with care

Rolling-release or short-lived systems such as Arch or Fedora are excellent for desktops, but their frequent changes demand attention that most production servers cannot spare. Alpine Linux is small and popular as a base for container images, but its use of musl instead of glibc occasionally causes compatibility surprises on a host server. Avoid obscure choices unless you have a reason; the day you need help is the day a larger community pays off.

Think about what you will run

• Plesk-managed hosting: pick one of the OS releases that Plesk lists as supported, and check the documentation for the exact current list.
• Docker host: any mainstream distribution works; Ubuntu LTS and Debian are common.
• Node.js, Python, PHP stacks: Ubuntu LTS has the widest set of guides, and vendors such as NodeSource publish repositories for it.
• Team of one: choose the system you already know and can keep patched.

Plan for the end of the lifecycle

Before you order, read the distribution's own release notes and lifecycle page, because exact dates and policies change with each release. Whatever you pick, note the end-of-support date, and schedule an upgrade or a fresh server with a migration well before it. In-place major upgrades are possible but riskier than building a new server and moving your sites. Keep your configuration documented, ideally in scripts, so rebuilding is not painful. Meanwhile, keep applying security updates, because an unpatched server is the real danger, not the logo on the installer.

If you are still undecided, ask yourself one question: which of these could I fix at three in the morning with only a search engine? Pick that one. Our comparison page shows how our hosting products differ if you are also weighing managed hosting against a self-managed server.

Operating systems at Zebra Hosting

Ask the team which operating system images are currently available for your VPS or dedicated server before you order. See the VPS plans for what is offered; delivery takes up to 24 hours.