When choosing an operating system for a server, most experienced administrators and business owners turn to Linux distributions. The reasons are clear: high stability, open-source code, customization flexibility, and scalability. Linux allows full control over the server environment, system configuration without unnecessary software, and uninterrupted service operation. But which distribution is best suited for your project?
In this article, we compare the three most popular server distributions — Ubuntu, Debian, and CentOS — to help you make an informed decision for website hosting, database deployment, corporate platforms, or even large-scale cloud solutions.
Debian: Reliability, Stability, and Security
Debian is one of the oldest and most reliable Linux distributions. Its main goal is to provide a highly stable environment. No wonder Debian is the foundation for dozens of other distributions, including Ubuntu.
Pros:
- Proven reliability and long-term stability — Debian can run without a reboot for years.
- Massive community maintaining tens of thousands of packages.
- Enhanced security: every update goes through thorough testing.
- Ideal for mission-critical services: DNS servers, mail systems, databases.
Cons:
- Slower updates: testing comes first, then the release. This can be a downside if you need the latest software.
Fact: Over 70% of servers in Europe use Debian or its derivatives due to its stability and security.
Ubuntu Server: Modern, User-Friendly, and Widely Used
Ubuntu Server is one of the most popular distributions worldwide. It combines the advantages of Debian with a focus on accessibility for beginners and ease of use. Perfect for web servers, VPS, DevOps infrastructure, and CI/CD environments.
Pros:
- Fast system and driver updates.
- Extensive documentation available even for beginners.
- Strong support for cloud platforms: OpenStack, AWS, Google Cloud.
- Broad support for commercial software: Docker, Kubernetes, MySQL, Apache.
- Ability to install LTS versions with long-term support (5 years or more).
Cons:
- Fast release cycles can occasionally cause bugs or instability.
Interesting fact: Canonical — the company behind Ubuntu — partners with Microsoft, Google, IBM, and Amazon.
CentOS / AlmaLinux / Rocky Linux: Enterprise-Grade Stability
Previously, CentOS was the main free solution compatible with RHEL (Red Hat Enterprise Linux). After its transition to CentOS Stream, two worthy successors emerged — AlmaLinux and Rocky Linux, both fully compatible with RHEL.
Pros:
- Reliable enterprise-grade architecture.
- Compatibility with control panels (like cPanel/WHM).
- Backed by major companies like CloudLinux.
- Long-term support for stable releases.
Cons:
- After the CentOS shift, some users lost trust in the brand.
- May require reconfiguration or migration when using older versions.
AlmaLinux and Rocky Linux are widely used in U.S. hosting companies for their 100% binary compatibility with RHEL.
Comparison Table
| Feature | Debian | Ubuntu Server | CentOS / Alma / Rocky |
| Stability | High | Medium/High | High |
| Package Freshness | Medium | High | Medium |
| Support | Community | Community + Canonical | Community + Enterprise Support |
| Ease of Configuration | Medium | High | Medium |
| Release Frequency | Every 2–3 years | Every 6 months (LTS – 2 years) | 5–10 years |
| cPanel/WHM Support | Partial | Partial | Full |
| Server Software Support | High | High | High |
Which Distribution Should You Choose?
- Debian — for those who value rock-solid stability and security. Ideal for banks, government institutions, and critical services.
- Ubuntu — for flexibility, cloud projects, and rapid deployment. A great option for startups, websites, and SaaS platforms.
- CentOS/AlmaLinux/Rocky — for enterprise-level solutions where vendor support and long-term stability are key.
If you’re planning to rent a server or need server colocation, Server.ua offers optimized solutions for any distribution — with full support for SSL, VPS, and dedicated servers.
Conclusion
Choosing a Linux distribution always comes down to balancing stability, modernity, and flexibility. Debian stands for proven reliability. Ubuntu leads in innovation and usability. CentOS/Alma/Rocky follow enterprise standards.
With Server.ua, you can be confident that your chosen distribution will run smoothly, efficiently, and securely. Choose hosting, server rental, or VPS — and launch your infrastructure today!
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