

CentOS and AlmaLinux are contenders in the open-source OS market, focusing on server environments. AlmaLinux holds an advantage with its enterprise-grade lifecycle, appealing to businesses looking for reliable long-term support.
Features: CentOS is appreciated for its stability, compatibility with Red Hat packages, and reliable infrastructure support. AlmaLinux sets itself apart with frequent updates, a strong community-driven development model, and proactive release cycles, catering to users who desire feature dynamism.
Room for Improvement: CentOS could enhance its update frequency and community engagement to stay competitive. Meanwhile, its documentation and support resources could be improved. AlmaLinux could work on reducing resource consumption and optimizing migration processes. Enhancements in memory management and reducing the learning curve would support broader adoption.
Ease Of Deployment and Customer Service: CentOS is noted for its straightforward deployment, using familiar tools. AlmaLinux offers easy migration paths from CentOS, and its dedicated support communities lower deployment challenges, resulting in a supportive ecosystem for users during transitions.
Pricing and ROI: Both OS are free and open-source, so there are no direct setup costs. CentOS offers strong ROI due to its established stability, while AlmaLinux potentially offers higher ROI with promises of continued support and innovation, making it appealing to enterprises focused on lifecycle value.
Moving over to AlmaLinux saves a lot of time because of the long-term support, meaning I do not have to support the latest version every couple of years.
The most immediate benefit has been the elimination of licensing and subscription fees compared to commercial enterprise Linux distributions or Windows.
I have seen a return on investment through significant time and money savings.
I have seen a return on investment, particularly in terms of money saved because I do not pay for the servers.
The money saved was significant, approximately fifteen percent of our IT budget.
It saved a lot of time through troubleshooting, which gives us substantial room for improvement in terms of fixing things.
The customer support for AlmaLinux is good.
I have not had a reason to communicate with the technical support of AlmaLinux because everything has been smooth for me.
I have never contacted any sort of technical support regarding AlmaLinux because I do not need it.
I would rate the customer support for CentOS a 10 on a scale of 1 to 10.
I've seen many people across the globe interacting, and when users encounter issues, the community provides solutions.
I would rate the documentation about eight in terms of usefulness.
It is very scalable and performs well both on small deployments and large-scale infrastructure with many servers.
AlmaLinux's scalability is very good because the predictable updates ensure there are no issues from that point of view.
CentOS is scalable and user-friendly without requiring complex configurations.
It allows users to scale resources vertically for upgrading hardware and horizontally by adding more servers, making it suitable for modern web hosting and containerized applications.
CentOS's scalability for my organization has handled growth and changing needs smoothly.
Its security is another highlight, providing minimal disruptions, timely security patches, bug fixes, and a reduced attack surface.
I have not encountered such issues with AlmaLinux, making it very stable.
Since I started using AlmaLinux, I have not encountered any issue with kernel crashes or upgrading.
CentOS is stable, reliable, flexible, and very useful.
CentOS's simplicity and stability make it easy to use.
I believe CentOS is stable, but we are gradually moving away from it.
The AlmaLinux team can look into this and see what they can improve in terms of resource consumption and monitoring tools that can actually help the users of AlmaLinux pinpoint the exact processes or services that are causing that amount of resource consumption.
If something is added to AlmaLinux that allows for some subscription or makes it exactly equal to RHEL, it would be perfect.
If AlmaLinux could provide ten to twenty years of fixes, that would be an improvement because I do not want to update the system all the time, as it becomes more challenging for me as a system administrator to track all the patches and everything I should patch on the system.
The documentation and support could be improved, along with compatibility with newer hardware as hardware continually evolves over time.
Kernel parameters, sysctl config details, tuned profiles, process prioritization, optimized disk, and input scheduler choice are all points for performance optimization.
CentOS RADIUS server handles sensitive authentication data, so improving security is the priority.
In the open-source environment, I believe a Linux distribution is always free of cost.
AlmaLinux is free, so there are no costs there.
I have no licensing cost, which means there is no burden related to licensing.
There was no cost in terms of deploying it or getting the license for it.
Regarding pricing, setup cost, and licensing for CentOS, there is no cost for licensing or setup pricing.
CentOS is a free product with free updates.
The tooling stability for DevOps is also significant, allowing easy use of infrastructure as code with Ansible or scripting playbooks that remain valid for years, making it especially important for the CI/CD pipelines.
Because AlmaLinux is binary compatible with Red Hat, it provides a very stable and reliable operating system suitable for production environments.
The prompt patching and OS updates with AlmaLinux have helped our team by improving our FedRAMP compliance and vulnerability scan reports.
CentOS has helped me most through its enterprise-level stability.
The update cycle changed when CentOS was prioritized for updates, causing stability issues.
In my experience, the best feature that CentOS offers is the network configuration of a device from the command-line interface, which is exceptionally clean.
| Product | Mindshare (%) |
|---|---|
| CentOS | 4.7% |
| AlmaLinux | 3.8% |
| Other | 91.5% |


| Company Size | Count |
|---|---|
| Small Business | 11 |
| Midsize Enterprise | 5 |
| Large Enterprise | 7 |
| Company Size | Count |
|---|---|
| Small Business | 30 |
| Midsize Enterprise | 22 |
| Large Enterprise | 29 |
AlmaLinux is an open-source, enterprise-level Linux distribution designed to provide stability, high performance, and community-driven support. It offers compatibility with RHEL, making it a reliable option for businesses seeking robust OS alternatives.
Built by CloudLinux, AlmaLinux serves enterprises looking for a powerful Linux distribution. It boasts seamless transitions from CentOS, providing a familiar environment for IT teams. With its open-source nature, AlmaLinux empowers organizations by offering control over their workflows. It supports diverse workloads, making it suitable for handling anything from basic setups to complex architectures. AlmaLinux stands out due to its strong security features, which focus on protecting sensitive data and maintaining secure server environments.
What are AlmaLinux's most important features?AlmaLinux has been implemented across industries like finance, healthcare, and technology due to its reliability and adaptability. In finance, it ensures secure transactions and data integrity. Healthcare organizations rely on it for managing sensitive patient data. Tech companies use it for its stability and community-driven enhancements, making it a versatile choice for diverse applications.
CentOS offers a stable, secure, and compatible environment with Red Hat packages, providing robust performance and cost efficiency. Its lightweight, scalable design and strong community support make it ideal for handling heavy workloads with limited resources.
CentOS is a popular choice for organizations seeking reliable server and virtualization solutions. Known for its robust stability and security, it offers seamless integration and maintenance. However, after a shift from Red Hat, some challenges emerged, including weak NFS client performance and a more complex interface, which beginners find challenging alongside insufficient documentation. Despite these, CentOS remains a favored option for deploying web applications, server installations, and supporting cloud solutions, thanks to its efficient use in monitoring, databases, and telecommunications.
What are CentOS's key features?CentOS is widely used in industries requiring robust infrastructure, such as web hosting, scientific computing, and telecommunications. In data centers, companies deploy it to support virtual environments, testing, and development. The OS powers business applications, email servers, and cloud solutions, offering a cost-effective alternative to Red Hat.
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