Flatcar Container Linux vs Red Hat Enterprise Linux (RHEL) comparison

Kinvolk (acquired by Microsoft) and Red Hat are both solutions in the Operating Systems (OS) for Business category. Kinvolk (acquired by Microsoft) is ranked #21, while Red Hat is ranked #1 with an average rating of 8.8. Kinvolk (acquired by Microsoft) holds a 0.7% mindshare in OSB, compared to Red Hat’s 9.0% mindshare. Additionally, 100% of Kinvolk (acquired by Microsoft) users are willing to recommend the solution, compared to 97% of Red Hat users who would recommend it.

Flatcar Container Linux

Read 1 Flatcar Container Linux review

670 Views
643 Comparison Views

100% willing to recommend

Red Hat Enterprise Linux (R...

Read 364 Red Hat Enterprise Linux (RHEL) reviews

20,998 Views
20,788 Comparison Views

97% willing to recommend

Flatcar Container Linux

Red Hat Enterprise Linux (R...

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Executive Summary

We performed a comparison between Flatcar Container Linux and Red Hat Enterprise Linux (RHEL) based on real PeerSpot user reviews.

Find out what your peers are saying about Red Hat, Canonical, Oracle and others in Operating Systems (OS) for Business.

To learn more, read our detailed Operating Systems (OS) for Business Report (Updated: August 2025).

Buyer's Guide

Operating Systems (OS) for Business

August 2025

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Review summaries and opinions

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

Categories and Ranking

Flatcar Container Linux

Ranking in Operating Systems (OS) for Business

21st

Average Rating

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Red Hat Enterprise Linux (R...

Ranking in Operating Systems (OS) for Business

1st

Average Rating

8.8

Reviews Sentiment

7.1

Number of Reviews

364

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of September 2025, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.7%, up from 0.4% compared to the previous year. The mindshare of Red Hat Enterprise Linux (RHEL) is 9.0%, down from 11.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Operating Systems (OS) for Business Market Share Distribution
Product	Market Share (%)
Red Hat Enterprise Linux (RHEL)	9.0%
Flatcar Container Linux	0.7%
Other	90.3%

Operating Systems (OS) for Business

Featured Reviews

Yogesh Deore

Senior Consultant at Capgemini

The solution is stable and allows us to make needed changes

The development teams could sharpen their skills. They should offer applications on the net I have eight years of experience with Flatcar Container Linux. The version of Flatcar Container Linux that I am using is stable. The scalability of this product is fine. It allows us to make the needed…

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Bruce Lundberg

Linux HPC Systems Administrator at a manufacturing company with 5,001-10,000 employees

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.

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Quotes from Members

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

Pros

"Flatcar's support is good. The version I am using is stable and allows us to make needed changes."

"The knowledge base offered by Red Hat Enterprise Linux is good. It is easy to parse through all of the knowledge base."

"The automation is great."

"My favourite feature is Ansible."

"We chose Red Hat Enterprise Linux for its broad distribution, enterprise-level support, and robust stability."

"The customer service and technical support of Red Hat Enterprise Linux (RHEL) has been wonderful so far."

"Their support is valuable. Whenever I had a problem, I could get on a phone call with somebody. I did not have to go to some random forum or send an email and wait forever. I could call somebody."

"Red Hat Enterprise Linux is a stable and supported platform with valuable built-in security features that help reduce risk and maintain compliance."

"The feature of Red Hat Enterprise Linux (RHEL) that I appreciate the most is the scalability."

More Red Hat Enterprise Linux (RHEL) pros

Cons

"The development teams could sharpen their skills. They should offer applications on the net."

"An area for improvement in RHEL has to do with security policies. I know they are doing something about this in RHEL 9, but I haven't worked with that version yet. When it comes to security policies in RHEL 8, it is a bit behind. It would be better if we could just enforce a certain security policy such as CIS Level 1. That was not available, out-of-the-box, in RHEL 8."

"Red Hat should improve its support services, specifically the responsiveness and expertise of its India-based team."

"They can allow more access to their training and their products' testing. There are ways to do it now. You might have to get a certain type of account to test their products. It might be easier if you can just download the product and test it out."

"One challenge we've faced is with databases. Configuring and implementing DBs is much easier in non-Red Hat Enterprise Linux systems, especially in Microsoft."

"I want RHEL to stick to the open-source routes. As a company, we experience challenges in managing the budget."

"It could be a bit more user-friendly. It could also be cheaper."

"With on-premise Red Hat Enterprise Linux (RHEL), scalability is not easy because I cannot deploy new machines."

"The product lags a bit behind in the market."

More Red Hat Enterprise Linux (RHEL) cons

Pricing and Cost Advice

Information not available

"Most Indians will find RHEL a little costly. It's slightly above average. RHEL's pricing has room for improvement because it's more expensive in the local market due to purchasing power parity in India."

"If you don't buy the Red Hat subscription, you don't get technical support, and you don't have all the updates. To have everything working like a charm, the cost that you pay for it is worth it. In Bolivia, we don't have the best internet connection. Therefore, we have a local service with all the packages, repositories, etc. We manage them locally, and because we have a subscription, we can update them. So, we have local repositories with all the packages and other things to make it easy for us to update all the servers. Without the Red Hat subscription, we cannot update anything."

"The cost is based on each organization's budget and infrastructure."

"While it isn't inexpensive, it has proven to be a worthwhile investment."

"The pricing is a bit on the expensive side, mainly because of the support they provide. However, it is quite affordable if you are an organization. If, as a small company or individual, this is an expensive option, I would recommend CentOS, which is an exact replica of RHEL, minus the customer support."

"It's been good, but I don't really get involved with that."

"It is cost-efficient."

"I do not know what the pricing is like now. Previously, the pricing model was advantageous as it allowed unlimited installations for a single price, focusing on support. The recent introduction of paywalls complicates the cost landscape."

More Red Hat Enterprise Linux (RHEL) pricing and cost advice

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Comparison Review

it_user281973

Storage and VMware Expert at a comms service provider with 1,001-5,000 employees

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…

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Top Industries

By visitors reading reviews

Computer Software Company

24%

Manufacturing Company

13%

Comms Service Provider

11%

Financial Services Firm

Computer Software Company

15%

Manufacturing Company

10%

Financial Services Firm

10%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	84
Midsize Enterprise	46
Large Enterprise	256

Questions from the Community

Ask a question

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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 stability, and also lots of features. I specifically like that the solution has fe...

See all answers

What do you like most about Red Hat Enterprise Linux (RHEL)?

It is open source. We can customize it as per our requirements.

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What is your experience regarding pricing and costs for Red Hat Enterprise Linux (RHEL)?

I can say about pricing for Red Hat Enterprise Linux (RHEL) is maybe a two on a scale where ten is a high price.

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Comparisons

Ubuntu Linux vs Flatcar Container Linux

Compared 46% of the time

Alpine Linux vs Flatcar Container Linux

Compared 21% of the time

CentOS vs Flatcar Container Linux

Compared 9% of the time

Debian vs Flatcar Container Linux

Compared 7% of the time

SUSE Linux Enterprise vs Flatcar Container Linux

Compared 6% of the time

More Flatcar Container Linux Competitors

SUSE Linux Enterprise vs Red Hat Enterprise Linux (RHEL)

Compared 19% of the time

Windows Server vs Red Hat Enterprise Linux (RHEL)

Compared 15% of the time

Rocky Linux vs Red Hat Enterprise Linux (RHEL)

Compared 13% of the time

Oracle Linux vs Red Hat Enterprise Linux (RHEL)

Compared 9% of the time

Ubuntu Linux vs Red Hat Enterprise Linux (RHEL)

Compared 9% of the time

More Red Hat Enterprise Linux (RHEL) Competitors

Product Reports

Buyer's Guide

Operating Systems (OS) for Business

August 2025

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Buyer's Guide

Red Hat Enterprise Linux (RHEL)

August 2025

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Also Known As

No data available

Red Hat Enterprise Linux, RHEL

Overview

Flatcar Container Linux is a lightweight, secure, and reliable operating system designed for running containers at scale with automatic updates and a minimal attack surface. The solution is easy to use and manage and has a simple and intuitive command-line interface and a powerful set of tools for managing containers and clusters.

It supports various container runtimes, including Docker, Kubernetes, and Mesos. It can be deployed on various infrastructure platforms, including bare metal, virtual machines, and cloud environments. Flatcar Container Linux is an ideal choice for organizations deploying containerized applications in production environments.

Kinvolk (acquired by Microsoft)

Red Hat Enterprise Linux is recognized for its stability, security, and performance, serving diverse industries with its robust support and seamless cloud deployment capabilities.

Red Hat Enterprise Linux provides comprehensive server applications across cloud environments, featuring tools like Ansible for enhanced user experience. It integrates OpenShift, Identity Management, and automation, supported by extensive documentation. Users seek easier upgrades, enhanced network virtualization support, and improved live patching.

What are the key features of Red Hat Enterprise Linux?

Stability and Security: RHEL is designed to provide a stable and secure environment, backed by consistent updates.
Cloud Deployment: Easily deployable across cloud platforms, enhancing flexibility.
Integration with Ansible: Enhances operational efficiency with powerful automation tools.
OpenShift and Containerization: Supports modern app development with integrated OpenShift features.
Extensive Documentation: Offers comprehensive resources for users to troubleshoot and optimize.

What are the benefits of using Red Hat Enterprise Linux?

Reliable Support: Benefit from extensive support options for seamless operation.
Enhanced Security: Built-in features ensure data integrity and protection.
Increased Flexibility: Suitable for diverse deployment environments, including on-premises and cloud.
Operational Efficiency: Tools like automation and cloud navigation improve productivity.
Training and Resources: Access to comprehensive training contributes to smoother implementations.

In sectors like finance, telecommunications, and education, Red Hat Enterprise Linux is crucial for running stable, secure systems. Its application spans web servers, data management, and containerization through tools like Kubernetes. Organizations adopt it for on-premises, virtualized, and cloud environments, ensuring robust infrastructure management.

Red Hat

Sample Customers

CISCO, mettle, Microsoft, Upguard, GMX

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

Buyer's Guide

Operating Systems (OS) for Business

August 2025

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