Debian vs CentOS: Differences You Should Know

CentOS and Debian are on top of the list of Linux distributions. While having loads of choices from the list of Linux distros, choosing the right one might be challenging for any administrator or developer. In this article, we will compare and differentiate Debian vs Centos to help you decide which environment best suits your project requirements, whether you are deploying a simple web server or a complex enterprise infrastructure.

Choosing CentOS or Debian can be difficult as both have advantages in various parameters. CentOS is an open-source Linux distribution that big enterprises use for server building. A large community and Red Hat Enterprise mainly support it, making it a staple in professional data centers. On the other hand, Debian is also open-source and backed by members of the Debian project. Debian is the largest community-driven open-source Linux distribution, known for its strict adherence to the philosophy of free software.

Before understanding the difference between Debian and CentOS, it is essential to look at their individual histories and core philosophies. This context explains why one might feel more "stable" while the other feels more "enterprise-ready."

🚀 What is Debian?

Debian is considered to be the oldest Linux-based distribution as it was launched in 1993. It is an open-source operating system created by individuals with common interests to develop this free OS. Because of its maturity, many other famous distributions like Ubuntu and Kali Linux are built upon its solid foundation. For a complete overview of its history and philosophy, read what is Linux Debian.

To install Debian, you can buy the CD-ROM distributions of Debian or burn your CD-ROMs from the image available over the internet. Click here to download the installation image file for Debian. If you are looking for a reliable environment to host your applications, many users prefer a Debian VPS server due to its low resource overhead and legendary stability.

Debian ensures the security and stability of your system. Debian uses two types of kernels—Linux kernel and FreeBSD kernel. Debian is a commonly used OS for personal and network servers and is a base for other Linux distributions. It is particularly favored by purists who want total control over every package installed on their machine.

To ensure you're always running the most up-to-date version of Debian, it's important to know how to check the Debian version on your system. Learn how to check your Debian version to keep your server secure and stable. Keeping your system updated is a fundamental part of Linux server security best practices.

🛠️ Features of Debian

• Debian server comes with a wide range of installers compared to other distributions, including graphical and text-based versions.
• Its community members still maintain Debian, ensuring it remains independent of corporate whims.
• It comes with an easy installation package system (DEB) and the powerful APT tool.
• With Debian, you can use any software available for distribution, covering thousands of pre-compiled packages.
• Debian supports multiple hardware architectures, from x86 and ARM to MIPS and PowerPC.
• Debian can be easily transitioned between new and old technologies without requiring a complete wipe.
• Debian comes with well-integrated packages that are tested rigorously for compatibility.
• It adapts easily during an upgrade to the new release, often requiring just a few commands.
• Debian is by far the most secure and stable Linux distribution available to date. It has a world-class bug-tracking system to resolve issues quickly.

✅ Advantages of Debian

• Debian is the oldest version and has a much more mature community of experts and documentation.
• Debian's tested version is as stable as other distributions, and even Debian's stable distribution is rock-solid stable for production use.
• Debian offers the largest repository for the software as compared to any other distribution, giving users endless choices.
• Debian's tools intend to do recursive system upgrades, making the leap from one major version to the next relatively painless.
• The Debian package will notify you to install another package if required for working; it is up to you to install it, giving you granular control.
• The system works on a policy that allows it to maintain the distribution in a distributed manner, ensuring high-quality standards.
• Debian has a stable branch that tests packages for years before they are officially released.
• It is known for being consistent and maintaining a highly secure system through frequent security patches.
• It supports almost every available Kernel-maintained CPU instructions set, making it highly versatile.
• The installation is minimal, thus making it easier for server resources and their security, as fewer active services mean a smaller attack surface.

⚠️ Disadvantages of Debian

• New software needs to be upgraded to get a stable repository. Still, sometimes it is difficult to get the latest features and software updates as fast as it is available for other distributions like Fedora or Arch.
• If you are an experienced person to work at the terminal end, then interacting with the system is easy. It gets a bit challenging for new users to get them working for the first time and is less user-friendly compared to Windows or macOS.
• It does not have an enterprise version like other distributions that offers you to work with large companies and their projects with a paid support contract.
• Debian offers an extended support cycle that even your hardware will probably get recycled before its support cycle ends.
• Though Debian works well with VMs, it still faces unexpected issues like sudden reboot, server clock stuck, etc., if the underlying virtualization layer is not configured correctly.

🚀 What is CentOS?

CentOS was released in 2004 and has been an open-source software. It is an enterprise-class Linux distribution supported by the Red Hat community. It is considered to be the replica of Red Hat Enterprise Linux (RHEL) and is commonly used in the IT world on a large scale for web hosting and database management. If you are looking for a rock-solid production environment, you might consider a CentOS server for its binary compatibility with RHEL.

Being similar to RHEL, it allows you to develop in a more dominant and the best Linux distribution. CentOS is the most popular distribution when it comes to server environments, especially for running control panels like cPanel or DirectAdmin.

Due to RHEL support, CentOS ensures enterprise-level security, thus making it safe for users. It is highly customizable and stable, which is why many sysadmins prefer it for mission-critical tasks. To gain a deeper understanding of CentOS and its key features, check out our detailed guide on What is CentOS, which highlights its history, benefits, and why it's widely used in server environments.

🛠️ Features of CentOS

• It comes with many security in-built features that help protect from cyber-attacks using SELinux (Security-Enhanced Linux). It helps to reduce the vulnerabilities of privilege escalation attacks by enforcing mandatory access controls.
• Many organizations prefer it due to its extended support cycle and predictability in updates.
• It uses the Yellowdog Update package manager (YUM) that keeps your system up-to-date. This feature ensures that you can easily add or remove features from your application irrespective of your application phase.
• CentOS comes with a great and simple document that allows you to install and configure CentOS on your system efficiently.
• It can support multiple management platforms like cPanel, WebMin, and Docker, making it ideal for containerized workflows.

✅ Advantages of CentOS

• CentOS is a complete workhouse with stable distribution, designed specifically for server stability.
• You can ensure easy updates of the system and security with YUM (or DNF in newer versions).
• It allows you to install multiple PHP versions that are available for different users, which is essential for web hosting environments.
• As it has Red Hat backup, most of Red Hat's instructions work the same for CentOS, like the package manager and configuration files.
• It comes with built-in management tools for containers and virtualization.
• CentOS comes with RPM package compatibility that allows easy machine setup for development.
• It has a customized command line that ensures easy automation of new instance deployments using scripts.
• It has Docker compatibility, allowing you to run microservices efficiently on a Linux VPS.
• It can even provide high performance on average hardware due to its optimized kernel.
• It ensures easy and quick deployments for standard web stacks like LAMP or LEMP.

You can easily verify your current CentOS version to ensure compatibility and take advantage of the latest features. For a detailed guide, check out our post on How to Check CentOS Version. If you are a beginner, learning basic Linux commands will help you navigate CentOS more effectively.

⚠️ Disadvantages of CentOS

• It may not work well for a desktop (GUI) Linux distribution as it focuses primarily on server-side performance.
• While working, it may get complicated due to the C/C++ library's dependency issues when trying to install very new software on an older base.
• It is a cumbersome job to install and uninstall some complex packages compared to the APT system in Debian.
• It has a weak user interface in its default state, requiring more manual configuration for a friendly desktop experience.
• It comes with a smaller user base for desktop-related issues as compared to other distributions like Ubuntu.
• It lacks robust driver support for the latest consumer-grade hardware as compared to other distributions.
• You may face issues while configuring complex network interfaces if you are not familiar with the RHEL-style configuration files.

📊 CentOS vs Debian: Head-to-head Comparison

Both Linux distributions are great and are commonly used based on their features. Both of them are used to run millions of applications and are used by many developers. Still, both are used in different scenarios and are different from each other in many aspects. For instance, if you are setting up a server for SQL database, the stability of either will serve you well, but the configuration steps will differ.

🔍 Key Difference between Debian and CentOS

• If you want up-to-date packages and a smooth rolling feel, you should consider using Debian as it provides an easy and effortless transition from one version to another version compared to CentOS.
• CentOS comes with a complicated GUI that is still easy to manage as compared to Debian for specific server tasks. So if you are handy with CentOS, then there is no way you should move to Debian.
• If you use these distributions as a server, you should select CentOS for long-term support and updates that align with enterprise RHEL standards.
• Debian is mostly preferred by experienced users and sysadmins who want to work as an admin and have total control. In contrast, a business person mostly prefers CentOS who wants a stable and secure Linux distribution for their commercial applications.

💡 Expert Tips for Choosing the Right OS

When deciding between Debian vs CentOS, consider the following practical scenarios:

• For Web Hosting: If you plan to use cPanel, CentOS has traditionally been the industry standard. However, if you prefer open-source panels like ISPConfig, Debian is an excellent choice.
• For Development: Debian's huge repository makes it easy to find libraries for Python, Ruby, or Node.js. Check out our guide on installing Node.js on Linux for more details.
• For Learning Linux: If you want to learn the "Red Hat way," CentOS is your best bet. If you want to understand the foundation of many modern distros, start with Debian.

🎯 Conclusion

Both Linux distributions, Debian vs CentOS, are commonly used and preferred by many developers based on their business needs. Both distributions handle different scenarios and are suitable for various applications, whether you are managing a small personal blog or a massive enterprise database. It is up to the developers which distribution suits well for their development. Undoubtedly, both distributions are preferred to install on their server. Today, CentOS is being used to run several servers more than any other distribution. If you consider ease of work and industry standard hosting, CentOS server has more features and specific stability for control panels.

You can order your own Linux VPS server and practice everything, whether it's setting up a web server, managing databases, or running scripts. For those specifically interested in Debian, it's a great choice for users who prefer stability and a large repository of packages. You'll be able to experiment with package management using APT and explore the distinct file structure that Debian offers compared to other distributions like CentOS. Let us know what other differences we missed between CentOS and Debian, and share your experiences of working with a VPS Debian or CentOS.

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