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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
275
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Operating Systems (OS) for Business category, the mindshare of Kali Linux is 2.2%, up from 0.2% compared to the previous year. The mindshare of Red Hat Enterprise Linux (RHEL) is 9.6%, down from 12.5% 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

"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."
"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 tools available in Kali Linux are incredibly effective for conducting security assessments."
"The solution's most valuable feature is that it is very easy to use."
"The most effective features of Kali Linux include its stability as a Linux operating system, its flexibility in configuring resources such as partitions, its powerful and stable file system, and its multi-user capability, which allows for setting user privileges and rights. Additionally, Kali Linux provides access to a wide range of free and open-source applications for testing and development purposes."
"The interface is good and straightforward to use."
"We use the product for open-source intelligence and identifying vulnerabilities."
"Red Hat Enterprise Linux provides a stable operating system, and OpenShift enhances efficiency with a built-in Ingress controller, unlike some managed Kubernetes services."
"Red Hat Enterprise Linux's most valuable feature is its seamless integration with Kubernetes, a powerful platform for automating the deployment, scaling, and management of containerized applications."
"When it comes to security, scalability, and robustness, Red Hat Enterprise Linux (RHEL) excels in all aspects. That's why we rely on this operating system."
"I like open source and prefer it over some closed proprietary software. In my early days, I was involved in the open-source community of the Red Hat Directory Server, communicating with developers to ensure password policies were implemented and asking questions. It showed me the power of open source."
"The most valuable features of Red Hat Enterprise Linux are the mobile applications and getting real-time notifications."
"Red Hat Enterprise Linux 9 updates the Cipher Suites and the security proceeds it. I wasn't pleasantly surprised because a bunch of our server communication didn't work. Having the Cipher Suites updated is a good thing but was not convenient."
"Red Hat Enterprise Linux is a reliable operating system that can run for long periods of time without any issues."
"Red Hat Enterprise Linux is lightweight and can be run on almost anything."
 

Cons

"The tool is slightly difficult to learn."
"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."
"Any new user or someone without deep expertise won't be able to understand how to scale or manage it"
"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 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 improve its security features."
"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."
"It is mostly better than other solutions. However, it is sometimes difficult for disaster recovery, so we have to plan accordingly."
"The solution should provide demos so that users can learn to use it and improve their environments."
"There are performance issues with the response time when accessing the console, but I'm unsure if that's RHEL's fault or if it's due to the lack of CPU or memory on our machines. The enterprise interface could be improved. I can only use the keyboard to transfer files from one system to another. I want to use my mouse on the interface, not just scroll up and down. I would also like my logs archived as an RAR and sent to me."
"Large application vendors may not have certified RHEL, or they have certified an older version. Most of the large application vendors are unfamiliar with the versioning that RHEL introduced, which I strongly support. They will support a given sub-version up to a point, not realizing that the sub-versions are essentially additive."
"When there is downtime from a system admin perspective, this solution could improve how they communicate why this down time is happening."
"The only issue we have had with it is around the SELinux configuration because the way Ansible installs, it sticks the platform passwords in a flat file. We want that locked down more strongly than what is there currently with SELinux."
"I would like to see improvements made to the subscriptions and management of them."
"I use Linux on Satellite with Ansible infrastructure. It would be great if there were a universal interface to control RHEL's policy from Satellite. It could be a dashboard showing which policies were enabled on what system and allow you to apply them from the dashboard."
 

Pricing and Cost Advice

"The tool 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."
"I have used the free version."
"Kali Linux is a free product, and you don't have to pay for a license."
"The price is good because Kali Linux already provides a good bundle of tools."
"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 licensing fee is expensive compared to other products."
"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."
"Red Hat Enterprise Linux is quite expensive, particularly its technical support, which can cost $500 per hour."
"It is pretty expensive, but it is worth it. Generally, in an enterprise environment, there is no cheap solution. This is coming from someone who is working with a company that provides a lot of solutions a bit cheaper than the industry standard. In the enterprise environment, I believe no solution is inexpensive, but RHEL is still pretty expensive. Additional costs that I am aware of are usually for support and setup."
"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."
"We are coming from CentOS, so technically, our total cost of ownership has gone up, but it is still cheaper than Windows for a database server and things like that."
"We still have a few with one-to-one standard server licensing, but we are utilizing the virtualization host licensing. We license it based on the host, not based on VMs, which is cool. I was very happy that there was certain licensing with SAP to have access to SAP repos. Its cost was the same as the regular one, so I was happy about that."
"Red Hat Enterprise Linux is expensive, particularly for governments operating with limited budgets."
"We have a site license on a yearly basis. Generally, we're okay with its price, but everything could be cheaper."
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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
13%
Educational Organization
11%
Computer Software Company
16%
Manufacturing Company
11%
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)?
Though a bit expensive compared to competitors, Red Hat Enterprise Linux (RHEL) is still recommended because it works effectively and delivers value for its pricing.
 

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: April 2025.
850,671 professionals have used our research since 2012.