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Kali Linux vs Red Hat Enterprise Linux (RHEL) comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 7, 2024

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

Kali Linux
Ranking in Operating Systems (OS) for Business
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
16
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 October 2025, in the Operating Systems (OS) for Business category, the mindshare of Kali Linux is 3.0%, up from 0.8% compared to the previous year. The mindshare of Red Hat Enterprise Linux (RHEL) is 8.6%, down from 11.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Market Share Distribution
ProductMarket Share (%)
Red Hat Enterprise Linux (RHEL)8.6%
Kali Linux3.0%
Other88.4%
Operating Systems (OS) for Business
 

Featured Reviews

NilutpalDutta - PeerSpot reviewer
Provides valuable real-time data scanning for vulnerability assessment
We don't know if Kali Linux has the port scanning capability yet, but that is an area of improvement because we are working with DMZ zones and customized ports. If we can add featured customized port scanning and DMZ zone capability, then it will be a very great tool. It might be there, but we are not exploring it yet. We are not exploring 100% of Kali Linux capabilities. If real-time customized port scanning can be added, for example, instead of a default port such as 8080 or 443, if we can use a customized port such as 9876, that capability would be great. The only point that I didn't find on Kali Linux for now is the ability to customize port scanning.
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

"Kali Linux has helped me learn faster and understand concepts better; you get a sense of appreciation when completing tasks on your own machine without help or hints from available tools or operating systems, with minimal guidance."
"The solution's stability is very good."
"Additionally, it now includes comprehensive migration analytics and reporting capabilities."
"I use the tool with Nmap to perform network audits. We use it to find vulnerabilities in our network through attacks. It's for those who want to launch or create viruses or perform attacks on systems. With Kali Linux, you can conduct penetration testing for networks, web applications, and Android mobile apps."
"Kali Linux is much better than other OS because it gives you a good set of tools. It is preferred for vulnerability assessments and cybersecurity."
"I'm mostly using for the web security web application, so end map and the troubleshoot will it's my price, and it's available in ColliNX."
"The outcomes from using Kali Linux in our organization are significant; we experienced reduced cybersecurity attacks and improved application security, leading to decreased attack surfaces and quicker testing cycles that enabled faster launches and installations."
"The interface is good and straightforward to use."
"Red Hat Enterprise Linux (RHEL) helps me solve pain points."
"It is a stable solution."
"One pro is that at the operating system layer, like, RHEL has better support from Red Hat, and if something goes down, I found many resources for troubleshooting and stuff online."
"I would rate Red Hat Enterprise Linux (RHEL) overall at least a solid ten out of ten."
"I like the speed of the OS data and the ease of Ansible automation. I don't need to spend much time managing everything."
"The simplicity of patching Red Hat Enterprise Linux is most valuable."
"Its scalability and ease of setup and configuration are most valuable. When we have a hardware failure, we just save the configuration files, and in about half an hour, we have another server running with the same configuration. It is really easy to replace servers. This is the best feature."
"I find Red Hat Enterprise Linux stable."
 

Cons

"The only point that I didn't find on Kali Linux for now is the ability to customize port scanning."
"Unfortunately, my current tool runs on Windows 10, and its use is restricted to enterprise versions. Integrating this tool or similar functionalities into Kali Linux for non-enterprise users would be incredibly valuable."
"The tool is slightly difficult to learn."
"The installation process of Kali Linux can be slow, particularly when installing and upgrading packages within virtualized environments."
"I would like for them to offer more features for the free version in order for users to test them in their internal environment before purchasing."
"The product should improve its security features."
"From an improvement perspective, Kali Linux could include more ML to help with academic literature, as it is one of the areas where there are shortcomings in the solution."
"There can be some lagging issues because the product gets stuck at times, making it an area of concern where improvements are required."
"The biggest thing that is crushing RHEL is documentation. Their documentation is haphazard at best. The man pages that you can use locally are pretty good, they've been fleshed out pretty well, but the documentation from Red Hat itself really needs somebody to go through it and review it."
"The support can be better."
"I would describe the experience of RHEL migrations as challenging since it's not an easy task to migrate thousands of machines in one major release window."
"Typically, when we open a support case with Red Hat, it is assigned to the first level of support. Even when we clearly outline the issue and request a timely response, the case often takes longer than expected to resolve."
"The performance of Red Hat Enterprise Linux (RHEL) could be improved, especially under high load scenarios or when running applications involving AI."
"Red Hat Enterprise Linux (RHEL) can be improved regarding security-side integrations that can be tightened with the releasing of images compliant with CIS controls or DISA STIGs, so they're built in and not an extra step."
"Red Hat Enterprise Linux (RHEL) can be improved by making it lighter. By making it lighter, there should be versions for specific cases, for customers or images."
"Considering an area where the solution lacks, I think we can look into a lot more automation and integrations with Red Hat Enterprise Linux and other products."
 

Pricing and Cost Advice

"There is no need to make any payments towards the licensing costs since it is a solution that is available for free."
"Kali Linux is a free product, and you don't have to pay for a license."
"Kali Linux offers a perpetual license, meaning you pay for it once and can use it. While free versions of Linux are available, Kali Linux, being an enterprise edition, usually comes with a perpetual license. I rate its pricing a five out of ten."
"I use it free of charge."
"I have used the free version."
"Kali Linux is open source."
"It is an open-source tool."
"The price is good because Kali Linux already provides a good bundle of tools."
"The product is on the expensive side."
"Red Hat is stable, and we always opt for the lower-tier subscription, which is affordable."
"RHEL's price seems to be consistently changing, depending on what you're after. We might need a more extended license to lock in a price if it keeps changing. It would be nicer if it stayed steady within a specific range, but it's negotiable. We try to negotiate, and maybe a more extended contract would be better."
"Its pricing and licensing are reasonable."
"Switching to Red Hat Enterprise Linux due to subscription costs can be a significant financial step."
"It is expensive. Everything is. I was happy to get a three-year Red Hat Enterprise Linux contract for our initial rollout."
"When you are running your infrastructure on this, you can always find some discounts with local support, etc. There are always some discounts to match your budget. It is definitely affordable."
"It's pretty expensive, but I'm not familiar with the pricing of other vendors for their operating systems. I'd rate it a seven out of ten in terms of pricing. Red Hat Enterprise Linux's main advantage is the support that you get by purchasing their subscriptions."
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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
Comms Service Provider
13%
University
13%
Computer Software Company
12%
Educational Organization
11%
Computer Software Company
15%
Manufacturing Company
10%
Financial Services Firm
10%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
Large Enterprise7
By reviewers
Company SizeCount
Small Business84
Midsize Enterprise47
Large Enterprise249
 

Questions from the Community

What do you like most about Kali Linux?
I use the tool with Nmap to perform network audits. We use it to find vulnerabilities in our network through attacks. It's for those who want to launch or create viruses or perform attacks on syste...
What is your experience regarding pricing and costs for Kali Linux?
Kali Linux offers a perpetual license, meaning you pay for it once and can use it. While free versions of Linux are available, Kali Linux, being an enterprise edition, usually comes with a perpetua...
What needs improvement with Kali Linux?
We don't know if Kali Linux has the port scanning capability yet, but that is an area of improvement because we are working with DMZ zones and customized ports. If we can add featured customized po...
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)?
I can say about pricing for Red Hat Enterprise Linux (RHEL) is maybe a two on a scale where ten is a high price.
 

Also Known As

No data available
Red Hat Enterprise Linux, RHEL
 

Overview

 

Sample Customers

Information Not Available
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 Kali Linux vs. Red Hat Enterprise Linux (RHEL) and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.