In 2025, Linux users continue to debate the best choice between CentOS vs Ubuntu for servers, desktops, and cloud computing. Both distributions have their strengths and weaknesses, and the decision largely depends on your specific needs. CentOS, once a favorite for enterprise environments, underwent significant changes with the introduction of CentOS Stream, while Ubuntu remains a widely used, user-friendly distribution with strong community and enterprise support.
This guide will break down the Ubuntu vs CentOS comparison, analyzing key factors such as performance, stability, security, and software support to help you make the best decision.
Understanding CentOS and Ubuntu
CentOS and Ubuntu are two of the most widely used Linux distributions, each catering to different user needs. CentOS, once known for its stability, has shifted to a rolling-release model with CentOS Stream. Ubuntu, backed by Canonical, offers user-friendly and enterprise-ready solutions with long-term support (LTS) options.
What is CentOS?
CentOS (Community Enterprise Operating System) was originally a free, open-source clone of Red Hat Enterprise Linux (RHEL), designed for stability and reliability in enterprise environments. However, Red Hat’s decision to replace CentOS Linux with CentOS Stream in 2021 led many users to seek alternatives. CentOS Stream is now a rolling-release distribution, meaning it serves as a development preview for RHEL rather than a stable production OS.
System Requirements for CentOS
Before choosing CentOS, it’s essential to understand its system requirements. CentOS is designed for enterprise environments and servers, requiring a stable and capable system to run efficiently. Below are the minimum and recommended hardware specifications for CentOS.
Minimum System Requirements:
- CPU: 64-bit x86_64 processor
- RAM: 2 GB (for basic usage)
- Storage: 20 GB of free disk space
- Network: Internet access for updates and package installation
Recommended System Requirements:
- CPU: Multi-core 64-bit processor
- RAM: 4 GB or more (for optimal performance)
- Storage: 40 GB or more (depending on use case)
- Additional: SSD for better performance, reliable power supply for servers
Advantages and Disadvantages of CentOS
- Stable and performance-driven for enterprise servers
- Based on RHEL, ensuring security and reliability
- Minimalist approach ideal for advanced users
- CentOS Stream lacks long-term stability
- Not beginner-friendly
- Fewer software options for desktops
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What is Ubuntu?
Ubuntu is a Debian-based Linux distribution developed by Canonical, offering both desktop and server editions. It is known for its user-friendliness, frequent updates, and extensive software support. Ubuntu has LTS (Long-Term Support) versions, providing five years of support, making it a great choice for developers, enterprises, and personal use.
System Requirements for Ubuntu
Before installing Ubuntu, it’s essential to check if your system meets the required specifications. Ubuntu offers different flavors, but the standard version requires sufficient hardware resources for smooth operation. Below are the minimum and recommended system requirements.
Minimum System Requirements:
- CPU: 64-bit x86_64 processor
- RAM: 2 GB (for Ubuntu Server), 4 GB (for Ubuntu Desktop)
- Storage: 25 GB of free disk space
- Graphics: VGA capable of 1024×768 resolution
- Network: Internet access for updates and software installation
Recommended System Requirements:
- CPU: Multi-core 64-bit processor
- RAM: 8 GB or more (for a smoother experience)
- Storage: 50 GB or more (SSD recommended for better performance)
- Graphics: Dedicated GPU for enhanced visual performance
- Additional: High-speed internet for updates and cloud integration
Advantages and Disadvantages of Ubuntu
- User-friendly for both beginners and professionals
- Long-term support (LTS) ensures stability
- Wide software compatibility and cloud integration
- More frequent updates can lead to instability
- Less optimized for traditional enterprise servers
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Difference Between CentOS vs Ubuntu [With Comparison Table]
To better understand the differences between CentOS and Ubuntu, the following table provides a quick comparison of their key aspects:
| Feature | CentOS Stream | Ubuntu LTS |
|---|---|---|
| Package Management | RPM, DNF/YUM | APT, DEB, Snap, Flatpak |
| Release Model | Rolling-release | Fixed LTS releases every two years |
| Stability | Less stable due to continuous updates | More stable with long-term support |
| Enterprise Support | No official enterprise support from RHEL | Canonical offers paid enterprise support |
| Security Updates | Frequent but less predictable | Regular and predictable security patches |
| Desktop Usability | Not beginner-friendly, server-focused | User-friendly with multiple desktop flavors |
| Cloud Compatibility | Limited support in cloud environments | Widely supported in AWS, Azure, and GCP |
| Control Panels | Limited cPanel and Webmin support | Full support for cPanel, Webmin, and more |
| Best Use Case | Enterprise servers, RHEL testing | Cloud computing, desktop, general use |
CentOS vs Ubuntu for Servers
When it comes to server environments, both CentOS and Ubuntu have long been popular choices. However, their suitability depends on factors like long-term stability, software support, and enterprise adoption. While CentOS Stream provides a rolling-release model that aligns with Red Hat’s development, Ubuntu Server is widely preferred for cloud computing and modern web hosting solutions.
Server Performance and Optimization
- Ubuntu Server is widely used in cloud environments like AWS, Azure, and Google Cloud.
- CentOS Stream was previously favored for hosting, but its rolling updates raise stability concerns.
Long-Term Support (LTS) and Updates
- Ubuntu LTS offers 5 years of free support + 5 years of extended support.
- CentOS Stream does not provide LTS, making it less reliable for production environments.
Web Hosting & Control Panels
- Ubuntu is supported by cPanel, Plesk, and Webmin.
- CentOS Stream faces compatibility challenges due to its frequent updates.
Enterprise Use and Corporate Adoption
- Ubuntu has gained strong enterprise backing from Canonical.
- CentOS alternatives like AlmaLinux and Rocky Linux have become the go-to replacements for CentOS Linux.
CentOS vs Ubuntu for Desktop Users
Choosing between CentOS and Ubuntu for desktop use depends on factors like ease of installation, software compatibility, and community support. While Ubuntu is widely recognized for its user-friendly interface and extensive application support, CentOS is traditionally used for servers and lacks many features that appeal to desktop users.
Ease of Installation and User-Friendliness
- Ubuntu provides an intuitive GUI installer with an easy-to-use desktop environment.
- CentOS requires manual setup and is not ideal for general desktop users.
Software and Application Compatibility
- Ubuntu offers Snap & Flatpak support, making software installation seamless.
- CentOS has limited access to desktop applications and multimedia software.
Community Support and Documentation
- Ubuntu has a vast support community and official Canonical documentation.
- CentOS relies on RHEL documentation and community forums.
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Closing Comment: Which One Should You Choose in 2025?
If you need a stable, enterprise-ready, RHEL-compatible OS, then CentOS Stream is not the best choice. Instead, consider AlmaLinux or Rocky Linux as CentOS replacements.
For cloud computing, web hosting, and general users, Ubuntu is the best choice due to its long-term support, frequent security updates, and wide software compatibility.
- Choose Ubuntu for cloud computing, personal desktops, and development.
- Choose AlmaLinux or Rocky Linux for enterprise-grade servers and stability.
FAQs
Choosing between CentOS and Ubuntu often raises several questions, especially with the evolving landscape of Linux distributions. Below are answers to some of the most frequently asked questions to help users make an informed decision in 2025.
Is CentOS still a good choice in 2025?
CentOS Stream is still in use, but most enterprises have moved to AlmaLinux or Rocky Linux for long-term stability. Since CentOS Stream follows a rolling-release model, it lacks the predictability and reliability that many businesses require.
Which is better for beginners: CentOS or Ubuntu?
Ubuntu is far better for beginners, offering a user-friendly interface and strong community support. It includes extensive documentation, easy package management, and a wide range of software, making it an ideal choice for those new to Linux.
What are the main differences between CentOS Stream and Ubuntu LTS?
CentOS Stream follows a rolling-release model, which means continuous updates and cutting-edge features but less stability. In contrast, Ubuntu LTS offers predictable, long-term updates every two years, ensuring a reliable and consistent environment for production systems.
Can I use CentOS or Ubuntu for cloud computing?
Ubuntu dominates cloud environments with pre-built support for AWS, Azure, and GCP. It has optimized cloud images and enterprise-grade security updates. CentOS alternatives like AlmaLinux and Rocky Linux are also viable choices for cloud deployments, but may not be as widely supported as Ubuntu.
What is the best CentOS alternative in 2025?
AlmaLinux and Rocky Linux are the best CentOS replacements, offering full RHEL compatibility. Both provide long-term support and security updates, making them excellent choices for businesses that previously relied on CentOS Linux.
