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Red Hat Enterprise Linux (RHEL) vs Ubuntu Linux vs Windows Server comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.9
RHEL's ROI benefits stem from automation, security, support, scalability, and integration, reducing costs and enhancing operational efficiency.
Sentiment score
7.8
Ubuntu Linux provides high ROI through cost savings, enhanced productivity, and stable support for big data applications on older hardware.
Sentiment score
7.1
Windows Server enhances efficiency and stability, offering cost-effective solutions and significant time and resource savings for organizations.
A long lifecycle is key to having a good return on investment.
Being able to transform common manual tasks that previously took all day into processes that take an hour, half an hour, or even less, demonstrates clear value.
Red Hat Enterprise Linux has saved us time and increased productivity.
We're very competitive commercially and technically because of it.
We've seen value in Windows Server because the systems work smoothly without any problems.
Windows Server offers excellent value for money, particularly when compared to alternatives.
 

Customer Service

Sentiment score
7.7
Red Hat Enterprise Linux support is praised for responsiveness and expertise, but some experience delays; documentation is comprehensive.
Sentiment score
6.6
Ubuntu Linux users often resolve issues via community support and online resources, rarely needing additional technical support.
Sentiment score
6.6
Windows Server support is praised for responsiveness and knowledge, but some users report slow responses; satisfaction ranges from 7-9/10.
Red Hat Enterprise Linux (RHEL) support is great, as they go beyond their duty to help resolve issues and provide solutions even for third-party software such as XRDP.
When we do contact customer service, they are generally very knowledgeable and well-versed in our size.
Usually, I send the information, and they have something for me within hours, sometimes even minutes.
They responded well, understood that the issue was not on my end, and provided a patch within two days.
The community around Ubuntu Linux is beneficial, providing answers to questions and assisting with issues.
Ubuntu Linux has a comprehensive knowledge base for self-help.
Our in-house team can also solve most issues.
If you go through a partner who sells or supports Windows, the support could be around seven out of ten, because Windows relies on these partners for assistance.
Microsoft's technical support for Windows Server has been lacking, with rare responses even with premium support.
 

Scalability Issues

Sentiment score
7.9
Red Hat Enterprise Linux is favored for scalability, deployment flexibility, and seamless expansion in varied environments, meeting growing demands.
Sentiment score
7.2
Ubuntu Linux scales efficiently across hardware and cloud environments, supporting growth with robust resource management and technical proficiency.
Sentiment score
8.1
Windows Server offers scalable solutions for businesses, flexibly expanding to handle varied user numbers and resource upgrades.
Many of our applications scale really well, with some having several hundreds of VMs, which we couldn't accomplish on Windows.
Red Hat Enterprise Linux (RHEL) scales very well with the growing needs of our company.
There are no issues with scalability when it comes to Red Hat Enterprise Linux.
In a server environment, it can seamlessly adapt to increased customer demand.
I've worked in companies with 20,000 to 100,000 users, and it scales beautifully without issues.
I rate its scalability a ten out of ten.
It's definitely scalable.
 

Stability Issues

Sentiment score
8.4
Red Hat Enterprise Linux is praised for its stability, reliability, and performance with minor issues in third-party integrations.
Sentiment score
7.9
Ubuntu Linux, especially LTS, is stable with occasional issues in virtual machines and hardware, favorably reliable overall.
Sentiment score
7.9
Windows Server is praised for stability and reliability, though stability can vary based on configurations and updates.
It works consistently with minimal downtime and very few bugs or glitches.
It just works, and that's really the key factor; I can't remember the last time we had a system go down and had to restore it due to a bad patch.
We've not had a service outage with Red Hat in six years.
The system has been completely stable, which makes it deserve a perfect score.
Ubuntu Linux is extremely stable and maintains uptime effectively.
Ubuntu Linux is generally stable, though there can be occasional issues with new hardware integration.
We have experienced no blue screens or crashes and often achieved an uptime of 2,000 to 3,000 days without any issues whatsoever.
Stability-wise, I rate the solution a ten out of ten.
The tool is stable.
 

Room For Improvement

Red Hat Enterprise Linux struggles with clear documentation, complex upgrades, costly support, and needs improvements in interface, training, and compatibility.
Ubuntu could boost enterprise adoption by enhancing Windows compatibility, user interface, hardware support, and reducing bloatware.
Windows Server users experience security, cost, and usability challenges, demanding better support, integration, updates, and resource efficiency.
Addressing these limitations would significantly enhance the operating system's flexibility and efficiency.
The built-in security features of Red Hat Enterprise Linux were insufficient for our needs, necessitating the implementation of supplementary security measures.
By providing pre-installed, native automation tools within the operating system, Red Hat would streamline processes and improve user efficiency.
There is a push towards integrating AI into software for various purposes like video and sound processing.
Stability issues occur when integrating new components due to physical or technical challenges.
Unlike CentOS, Ubuntu Linux lacks an easily accessible inbuilt repository where dependencies or packages are easily found.
The solution should improve its stability.
From a security perspective, sometimes, malware attacks and hackers take advantage of the tool's vulnerabilities.
Deploying antivirus and firewall software on the server is advisable, but having an external firewall adds an extra layer of security.
 

Setup Cost

RHEL pricing is high but valued for support; smaller businesses often seek cost-effective options like CentOS or cloud solutions.
Ubuntu Linux offers cost-effective, scalable solutions with free and paid options for enterprises, emphasizing flexibility and collaboration.
Enterprise users consider Windows Server pricing complex and costly, preferring pricing improvements, especially due to its complex licensing model.
It may be considered expensive compared to other solutions like CentOS or Ubuntu, which offer some of the same features without additional costs.
Its pricing has room for improvement because it's more expensive in the local market due to purchasing power parity in India.
Windows Servers base their cost on the number of users and have high licensing fees, while Red Hat Enterprise Linux offers free versions alongside its paid, supported versions.
For an enterprise-wide scalable operating system with professional services, you can select Ubuntu Linux at a reasonable price.
The setup cost is free.
Ubuntu Linux is open-source, leading to cost savings through its free availability.
It is quite expensive.
Previously, a Windows Server with two processors cost around two 154 euros annually, but now it is estimated to be around 3,000 to 4,000 euros for the same configuration.
On a scale of one to ten, with ten being the most expensive, I rate it ten out of ten.
 

Valuable Features

Red Hat Enterprise Linux excels in stability, security, and flexibility, with strong support, automation tools, and comprehensive documentation.
Ubuntu Linux is secure, customizable, user-friendly, with strong community support and versatile for development and server environments.
Windows Server is essential for businesses due to its user-friendly interface, scalability, robust performance, and seamless Microsoft integration.
It also has strong security features, is OIS and FIPS certified, and has built-in Linux security configurations.
There is also no downtime.
The operating system allows for the simple addition of kernels, modules, and other applications, making it highly adaptable to various needs.
Ubuntu Linux's open-source nature supports community contributions, bolstering its development and support ecosystem.
Ubuntu Linux supports remote troubleshooting via SSH, allowing connection from anywhere, which is beneficial for troubleshooting server issues.
In terms of security, I am satisfied with Ubuntu Linux and I can rely on its security features more than I can with Windows.
Windows Server is a stable and scalable solution.
The most valuable features of the solution stem from the fact that every Microsoft product is scalable, flexible, secure, and available on a certain budget.
The IP directory is the most valuable feature.
 

Mindshare comparison

As of June 2025, in the Operating Systems (OS) for Business category, the mindshare of Red Hat Enterprise Linux (RHEL) is 9.3%, down from 12.5% compared to the previous year. The mindshare of Ubuntu Linux is 12.9%, down from 21.4% compared to the previous year. The mindshare of Windows Server is 9.2%, up from 8.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business
 

Featured Reviews

Bruce Lundberg - PeerSpot reviewer
Reliable patch management, high uptime, and incredible knowledge base
In terms of security, it does a lot of things that most people still turn off. SELinux is turned on by default. They have pretty good firewall rules in their defaults. The audit rules always take tweaking, but, overall, it comes out of the box not too bad. I used to write scripts to harden them from there. There are multiple ways to provision and patch. You have everything from local repositories to doing it by hand. Their knowledge base is incredible. There is so much information out there. It has never taken me longer than 30 minutes to find an answer to anything, even very tough ones. One company I worked for was a security company, and we did a lot of patching on everything. It was designed around security and email hosting, and uptime was pretty much whatever we wanted it to be. I have had a couple of times when the uptime was bad, but it was caused by a third-party solution. In fact, the Norton antivirus was definitely the worst. Red Hat had nothing to do with it.
Kevin Haury - PeerSpot reviewer
Linux's advanced terminal empowers versatile usage and ongoing secure development
Initially, there was nothing complicated. It's easy since I have many years of experience with it. However, if I were a beginner with Linux, it could be completely disruptive compared to Windows. So, I would have to spend some time practicing with Linux to understand how it works and how I can accomplish the same tasks compared to Windows. Maybe one month, at least.
Jai Prakash Sharma - PeerSpot reviewer
Efficient Management Achieved with Internal Resources and Reliable Technical Support
Maintenance of Windows Server varies by organization, but for us, it's not very difficult as we have in-house resources managing these tasks. However, it can become a bit tricky when we want to see a collated view of our security posture. Regarding AI integrations with Windows Server, Copilot adoption is progressing, though I have only experienced it on endpoints and not on the server side. We operate significant workloads on AI, but we consume those primarily on Linux rather than Windows Server. I don't have much experience regarding integration capabilities in Windows Server for AI workloads, so I may not be the right person to provide insights on that. Overall, I am quite happy with my experience using Windows Server. I don't have many constraints or concerns, so I would rate it eight out of ten.
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Comparison Review

it_user281973 - PeerSpot reviewer
Aug 24, 2017
It's improved our company's system environments that run Oracle databases.
Red Hat is mission critical to our environment Red Hat has improved the mission critical environments running Oracle databases, while CentOS has improved our web environment and MySQL. Oracle and SAP Environment and all HPC environments. 10 years No issues Very stable i don´t find any problem…
 

Top Industries

By visitors reading reviews
Computer Software Company
16%
Manufacturing Company
11%
Financial Services Firm
10%
Government
9%
Computer Software Company
14%
University
10%
Comms Service Provider
8%
Manufacturing Company
8%
Computer Software Company
13%
Government
9%
Financial Services Firm
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Which would you choose - RHEL (Red Hat Enterprise Linux) or CentOS?
Red Hat Enterprise Linux is fantastic. It is an inexpensive solution that has excellent security, performance, and st...
What do you like most about Red Hat Enterprise Linux (RHEL)?
It is open source. We can customize it as per our requirements.
What is your experience regarding pricing and costs for Red Hat Enterprise Linux (RHEL)?
Pricing is sometimes an issue for our clients because it's not a cheap solution. The different licenses have a high c...
Which would you choose - Ubuntu Linux or Oracle Linux?
Ubunto Linux is a complete Linux operating system that is freely available with both community and professional suppo...
What do you like most about Ubuntu Linux?
It has a good support system for loading databases.
What is your experience regarding pricing and costs for Ubuntu Linux?
The cost is not much, and I am not sure about the licensing cost because a separate team handles it.
What needs improvement with Windows Server?
It's difficult to see improvements when using it daily. They improved compatibility with other platforms, such as Lin...
What is your primary use case for Windows Server?
I administer Windows Server. We have Windows 10 and are migrating to Windows 11 under my organization. The people who...
 

Also Known As

Red Hat Enterprise Linux, RHEL
Ubuntu
No data available
 

Overview

 

Sample Customers

Travel Channel, Mohawk Industries, Hilti, Molecular Health, Exolgan, Hotelplan Group, Emory University, BlueCross BlueShield of North Carolina, HCA Healthcare, Paychex, UPS, Intermountain Healthcare, Brinker International, TransUnion, Union Bank, CA Technologies
Samsung, eBay, AT&T, Walmart, Cisco, Time Warner Cable, Bloomberg, Best Buy, Dell, Intel, Microsoft, Ericsson, Orange, Wells Fargo
Rakuten, Rackspace, Tyco
Find out what your peers are saying about Red Hat, Canonical, Oracle and others in Operating Systems (OS) for Business. Updated: May 2025.
855,080 professionals have used our research since 2012.