The CentOS-Sized Hole in the Room
When Red Hat killed CentOS Linux as a stable downstream rebuild in 2020, it orphaned half the VPS fleet on the internet. Two projects rose to fill the gap: AlmaLinux and Rocky Linux. Both promise the same thing — a free, production-grade, 1:1 binary-compatible RHEL clone. Five years later, the dust has settled, and the honest answer to “which one?” is refreshingly boring. But the details still matter, so let’s walk through them.
What “RHEL-Compatible” Actually Means
Both distros rebuild Red Hat Enterprise Linux from its published sources, aiming for bug-for-bug compatibility: same packages, same versions, same behavior. If your application is certified on RHEL, it runs on either clone without anyone being able to tell the difference. They both track RHEL major versions (8, 9, 10) with ~10-year support lifecycles, and both offer a painless centos2alma / migrate2rocky conversion path from old CentOS boxes.
For a VPS, this means: pick either one and you get a boring, stable, SELinux-enforcing server OS with a decade of security updates. That’s the whole pitch, and both deliver it.
Where They Actually Differ
| AlmaLinux | Rocky Linux | |
|---|---|---|
| Founded | 2021, by CloudLinux | 2021, by CentOS founder Gregory Kurtzer |
| Governance | AlmaLinux OS Foundation (nonprofit) | Rocky Enterprise Software Foundation |
| Release timing | Typically days after RHEL | Typically days after RHEL |
| Architectures | x86_64, ARM64, ppc64le, s390x | x86_64, ARM64, ppc64le, s390x |
| Extras | AlmaLinux Kitten (preview of next RHEL), SBOMs published | Rocky Linux SIGs, strong HPC community roots |
| Commercial support | Available via partners (e.g. TuxCare) | Available via partners (e.g. CIQ) |
The governance story is the real differentiator people argue about. AlmaLinux started inside CloudLinux (a commercial company) and was later handed to an independent foundation. Rocky started as a community project under a foundation from day one. In practice, both foundations now operate independently, both publish their build infrastructure openly, and neither has pulled anything resembling the CentOS rug-pull. If corporate lineage keeps you up at night, read both foundations’ bylaws — otherwise, move on.
The Verdict for VPS Use
There is no wrong answer. Flip a coin. Seriously. Both are excellent, both will still be here in ten years, and both run the exact same workloads identically.
If you need a tiebreaker:
- Pick AlmaLinux if you want the slightly faster security update cadence it has historically posted, or if you like the AlmaLinux Kitten preview program for testing what’s coming in the next RHEL minor release.
- Pick Rocky Linux if the “founded by the CentOS guy” lineage matters to you, or if you’re in HPC/scientific computing where Rocky’s community is strongest.
- Pick whichever your VPS provider offers as a one-click image — and this is the tiebreaker that actually decides it for most people. A clean official image beats a manual install every time.
Most VPS providers ship both as standard images. When you’re comparing hosts, check that your preferred clone is on the image list before you commit:
- Check AlmaLinux/Rocky images at InterServer
- Check AlmaLinux/Rocky images at DigitalOcean
- Check AlmaLinux/Rocky images at Hostinger
What About Actual RHEL?
Worth a footnote: Red Hat’s no-cost RHEL subscription for up to 16 systems (the Developer program) means small fleets can run genuine RHEL free. If you want the real thing with official support channels and don’t mind the Red Hat account, it’s a legitimate third option. For everyone else, the clones remain the pragmatic choice.
Still choosing the VPS itself? Read how to choose a VPS in 2026 — and if you’re weighing the Debian side of the world instead, see Ubuntu vs Debian for servers.