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

Categories and Ranking

Flatcar Container Linux
Ranking in Operating Systems (OS) for Business
17th
Average Rating
8.0
Number of Reviews
1
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
7.3
Number of Reviews
273
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.5%, up from 0.4% compared to the previous year. The mindshare of Red Hat Enterprise Linux (RHEL) is 9.9%, down from 12.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business
 

Featured Reviews

YD
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…
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.

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."
"Red Hat Enterprise Linux is a stable and supported platform with valuable built-in security features that help reduce risk and maintain compliance."
"I like RHEL's clustering capabilities and high-level architecture. It has high availability, built-in disaster recovery, SSH features, and scripting."
"Red Hat support is pretty good. They're online, so you can look up things once you have support. Their AB integration has improved. It's easy to manage storage for moving, syncing LBM, etc."
"We also use Ansible. Ansible is a wonderful tool for automation. We use it to automate our patching. We use Ansible to get playbooks to take care of anything that's manual."
"There are millions of commands you can use, although we use only five or ten."
"We run Satellite on a lot of these, so having a central repository that we can use for patch management and remote execution is huge. That's something that is very difficult in a Windows environment. We're very compliance driven, so to have that built into Red Hat is easy. We don't need an agent or anything like that to get a lot of work done, so Satellite and centralized automation are the most valuable features for us."
"By implementing Red Hat Enterprise Linux, we wanted to solve some of the reboot problems of Windows. Every patch on Windows affected our applications because the system had to be rebooted. Red Hat Enterprise Linux has improved the uptime of the applications."
"With Red Hat, the community is so robust. Most of the time, while waiting for a Red Hat engineer to call us back, the solution to the issue is already provided."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"The default settings are confusing."
"A feature that I would like to see in the image builder is the ability to open the image in live mode and access a command line interface."
"After installation, the initial setup can be simplified or improved a little bit for new users coming from a distribution like Ubuntu or Windows."
"The solution should provide demos so that users can learn to use it and improve their environments."
"The organization moved away from Red Hat because IBM introduced paywalls and additional barriers that did not exist before, which made everything a lot harder."
"Red Hat Enterprise Linux has ongoing potential for improved integration with hosting solutions and VPNs as the demand for these technologies grows."
"Red Hat has several areas ripe for improvement. In the Asia Pacific region, where cost-optimization is highly valued, Red Hat's support and subscription costs are perceived as high and could be reduced."
"They could become the most sufficient solution by focusing on improving areas where there is always room for enhancement."
 

Pricing and Cost Advice

Information not available
"Red Hat Enterprise Linux is expensive, particularly for governments operating with limited budgets."
"We get our licenses directly through Red Hat."
"While expensive, Red Hat Enterprise Linux offers efficiency and performance."
"We have moved to the Simple Content Access (SCA) model. It is much easier to do renewals and see how I am using my licenses. I used to have to do it all by hand. It would take me a good couple of hours every few months to make sure that we were up to snuff on everything. However, with the new model that they have, this is very easy. I just go to cloud.redhat.com to look and see how I am utilizing my licenses. If I am running out of bounds, I can find out why. If it is simply that we have images that need to be removed, we remove those images. If we need to buy more licenses, then we can start the process of purchasing more licenses."
"I do not know the overall cost, but I know that Red Hat is cheaper than Windows."
"It seems to be fair. It is not overpriced."
"It is cost-efficient."
"Switching to Red Hat Enterprise Linux due to subscription costs can be a significant financial step."
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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
23%
Financial Services Firm
11%
Manufacturing Company
10%
University
10%
Computer Software Company
15%
Manufacturing Company
12%
Financial Services Firm
10%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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...
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)?
The setup and licensing costs for RHEL are high, especially concerning support and associated applications. Red Hat charges high prices for support solutions like Ansible ( /products/red-hat-ansibl...
 

Also Known As

No data available
Red Hat Enterprise Linux, RHEL
 

Overview

 

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
Find out what your peers are saying about Red Hat, Canonical, Oracle and others in Operating Systems (OS) for Business. Updated: March 2025.
845,040 professionals have used our research since 2012.