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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
8.8
Reviews Sentiment
7.7
Number of Reviews
13
Ranking in other categories
AWS Marketplace (3rd)
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 Kali Linux is 2.0%, up from 0.1% 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

GurpreetSingh4 - PeerSpot reviewer
Has small footprint and low maintenance cycles
Pre-installed tools can provide basic training and security measures, which is helpful. However, these tools may not be sufficient to secure your workload fully. That's why it's important to complement them with other specialized security tools to enhance your overall security. Before using Kali Linux, make sure you know its pros and cons. It's a good system to learn because it's the best choice for some situations. It has default firewall settings that block everything by default. It's up to the user to decide how much they want to open up. Learning Kali Linux takes time because it relies on command-line tasks instead of graphical interfaces. Practice is key to becoming comfortable with it.
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

"The tools available in Kali Linux are incredibly effective for conducting security assessments."
"We use the product for open-source intelligence and identifying vulnerabilities."
"The interface is good and straightforward to use."
"The most valuable feature of Kali Linux is the attack it performs using a CVE script that's already on the internet."
"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 solution's stability is very good."
"The solution's most valuable feature is that it is very easy to use."
"In general, Kali Linux is used for hosting applications, developing new applications, and operating systems. It's also used in containers and nodes. The tool offers a smaller footprint than Windows because it lacks the functionality of graphical user interfaces. One advantage of Kali Linux is its lower maintenance requirements than Windows, with slower update cycles and easier maintenance procedures."
"The solution's SELinux feature is a gold standard for security. It also has the best ecosystem."
"Red Hat Enterprise Linunx's most valuable feature is patching."
"Stability, support, and life cycle management are valuable."
"The main reasons for using Red Hat Enterprise Linux are security, reliability, and efficiency. The system is very reliable, and it is more efficient than others."
"The most valuable aspects of Red Hat Enterprise Linux are its flexibility and security."
"RHEL enables us to deploy applications and emerging workloads across bare-metal and virtualized environments and I find those workloads to be extremely reliable. The reliability is so good that I rarely find myself calling Red Hat support any longer. Support is the first benefit of using RHEL, but the second thing is that the platform is so stable that the need to use support is negligible."
"The support for OpenShift and CoreOS is valuable, as we frequently use support services and rely heavily on Red Hat support for assistance."
"Ansible is one of my most-used tools, and I especially appreciate its automation capabilities."
 

Cons

"The tool is slightly difficult to learn."
"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."
"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."
"There can be some lagging issues because the product gets stuck at times, making it an area of concern where improvements are required."
"The installation process of Kali Linux can be slow, particularly when installing and upgrading packages within virtualized environments."
"The tool is already stable and well-developed, so there's minimal feedback for enhancement or change. However, it should improve security, which is crucial, especially with the increasing use of Kali Linux in cloud environments."
"The product should integrate AI and GPT capabilities."
"The product should improve its security features."
"Red Hat can improve its operating system by making it better from the quality assurance perspective. Users do find bugs, which they, of course, shouldn't encounter. A better QA would probably make the job a lot better. It would make the product a lot more stable than it's today."
"The built-in security features of Red Hat Enterprise Linux were insufficient for our needs, necessitating the implementation of supplementary security measures."
"The solution is moving away from CentOS and there are growing pains from the customer's perspective."
"For phone support, we had to buy a license for all our servers, and it was a bit pricey for us."
"This solution could be improved if it was easier to set up and run in cloud environments. It can also be costly to manage a large OpenShift environment."
"Red Hat Enterprise Linux has affected our HA systems in a negative way. We're working through some of those issues."
"There's too much information on the support page sometimes."
"The licensing cost of Red Hat Enterprise Linux is high and could be improved."
 

Pricing and Cost Advice

"Kali Linux is a free product, and you don't have to pay for a license."
"Kali Linux is open source."
"There is no need to make any payments towards the licensing costs since it is a solution that is available for free."
"The tool is open-source."
"It is an open-source tool."
"The licensing fee is expensive compared to other products."
"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."
"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."
"Its licensing is pretty confusing. There are a lot of subscriptions, and it isn't always clear which subscription is the best, but with their support, it's easy to find the right one."
"The licensing for Red Hat Enterprise Linux in Peru is very expensive."
"I did some research on pricing a long time ago, and at that time, it was much cheaper than Windows. I do not have current details about pricing, but it is affordable."
"The price is reasonable."
"My company has acquired five to ten licenses from Red Hat Enterprise Linux (RHEL)."
"Pricing depends on the model used, costing about $3,000 per virtual host in the virtual environment. It varies depending on whether you get high availability. There are modules that are upsold such as kernel patching, which we do not use due to cost considerations."
"I do not have much knowledge of licensing. That is handled by the procurement team, but I know that it is expensive. If they can provide more licensing options, it will be much easier for companies to buy."
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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
16%
Computer Software Company
14%
University
12%
Educational Organization
10%
Computer Software Company
15%
Manufacturing Company
12%
Financial Services Firm
10%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
The tool is already stable and well-developed, so there's minimal feedback for enhancement or change. However, it should improve security, which is crucial, especially with the increasing use of Ka...
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

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: February 2025.
845,040 professionals have used our research since 2012.