- CentOS is gone, and AlmaLinux and Rocky Linux split its inheritance.
- This guide compares the two RHEL-compatible successors for dedicated servers — governance, update speed, cPanel support — helps CentOS holdouts finally migrate, and explains when the RHEL family beats Debian and Ubuntu.
For twenty years the default answer for a hosting-oriented Linux dedicated server was CentOS — free RHEL, rock solid, and the platform cPanel was practically married to. Then Red Hat killed classic CentOS, and two successors emerged to carry the torch: AlmaLinux and Rocky Linux. Both are free, both are RHEL-compatible, both run everything CentOS ran. If you operate cPanel servers, enterprise software, or anything that says "requires RHEL/CentOS," this is your family — here is how to choose within it.
AlmaLinux vs Rocky Linux: The Practical Differences
| Dimension | AlmaLinux | Rocky Linux |
|---|---|---|
| Compatibility target | ABI-compatible with RHEL (application-level) | Aims bug-for-bug 1:1 with RHEL |
| Governance | Non-profit foundation, CloudLinux-originated | Non-profit, founded by CentOS co-creator |
| Security update speed | Often ships patches fastest (can patch independently) | Tracks RHEL releases directly |
| cPanel support | Primary recommended platform | Fully supported |
| Hosting ecosystem (CloudLinux, Imunify) | Deepest integration | Full support |
Honest verdict: for hosting workloads — especially cPanel dedicated servers — AlmaLinux is the mainstream pick with the deepest panel-ecosystem ties. Rocky appeals when strict 1:1 RHEL fidelity matters (enterprise software validation). You will not regret either; they are more alike than different, and migration tools convert between them in place.
Still on CentOS 7? You Are Past the Deadline
CentOS 7 reached end of life in mid-2024 — every day since, unpatched. If you are reading this on a CentOS 7 dedicated server, migration is not a project for next quarter; it is overdue. The clean path: provision a fresh AlmaLinux 9/10 server, migrate accounts (cPanel's transfer tools make this routine), validate, cut over DNS. In-place converters exist (ELevate) but a fresh build plus migration gives you a rollback plan and clears years of accumulated cruft. WebsNP performs these migrations free on new dedicated servers.
Why Choose the RHEL Family Over Debian/Ubuntu
- cPanel requires it — the single biggest driver in hosting.
- 10-year lifecycle per major release — the longest free support window in Linux.
- SELinux by default — mandatory access control that meaningfully contains compromises, worth learning rather than disabling.
- Enterprise software certification — commercial agents, ERP systems, and compliance tooling list RHEL-compatible first.
Choose Debian or Ubuntu instead when your stack is containerized or apt-native and no RHEL-family requirement exists — the fleets are equally reliable; the ecosystems differ.
Setup Notes for AlmaLinux/Rocky Dedicated Servers
- Use
dnfwith the EPEL repository enabled for the extended package universe. - Keep SELinux enforcing; learn
ausearch/audit2allowinstead of reaching forsetenforce 0. - Firewalld is the default; our firewall guide covers CSF as the hosting-friendly alternative.
- For web hosting, pair with CloudLinux (a paid AlmaLinux-based OS) when you need per-account resource isolation on shared/reseller servers.
Day-to-Day Differences Coming From CentOS
Administrators arriving from CentOS find the transition to AlmaLinux or Rocky almost eerily uneventful, which is precisely the point — commands, paths, service management, and package behavior carry over intact, and most existing automation runs unmodified. The differences worth noting are generational rather than distributional: newer major releases bring updated toolchains, changed network configuration conventions, and stricter defaults in places where older habits had gone stale. The productive approach is to treat the migration as an opportunity to modernize the things you always meant to fix — retire the compatibility hacks accumulated over a decade, move configuration into version control, and document the services running on the box while you are touching everything anyway. Teams that do this report the new fleet is not just supported again but genuinely easier to operate than what it replaced, turning a forced migration into the maintenance overhaul that never previously justified its own project.
Frequently Asked Questions
Is AlmaLinux really free, like CentOS was?
Yes — free forever by foundation charter, funded by sponsors (including major hosting companies). Same for Rocky.
Which does cPanel recommend, AlmaLinux or Rocky?
cPanel supports both; AlmaLinux is its most prominently recommended and most widely deployed platform in 2026.
Can I convert CentOS/Rocky/Alma between each other without reinstalling?
Yes — official migration scripts switch a running system between RHEL-family distros in place. Snapshot first, obviously.
AlmaLinux 9 or 10 for a new server?
AlmaLinux 9 for maximum ecosystem compatibility today (cPanel's primary target); 10 as panel and software vendors certify it. Your provider should offer both — WebsNP does.
Order an AlmaLinux or Rocky Linux dedicated server from WebsNP — cPanel-ready, NVMe standard, with free migration from your aging CentOS box. Talk to us about the migration plan before the next CVE finds it.