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Kali Linux vs Red Hat Enterprise Linux (RHEL) comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

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

ROI

Sentiment score
6.2
Kali Linux improves vulnerability testing, offering cost-effective security benefits through AWS deployment and open-source tools for businesses.
Sentiment score
6.3
Organizations achieve significant ROI with Red Hat Enterprise Linux through cost savings, improved efficiency, automation, and reliable support.
Integrating Kali Linux with DevOps tools has resulted in reduced operational costs due to automated test cases, making it a worthwhile investment with significant returns by decreasing the attack surface area and the frequency of attack incidents.
SWE-1 at a tech vendor with 10,001+ employees
If we had installed it on-premises or through other means, it would have incurred significant money and effort to create the VMs, deploy it on machines, and then delete and format it after use.
Cloud Security Architect at a tech services company with 10,001+ employees
I have saved time by avoiding the lag I sometimes face on the TryHackMe in-built machine, and I have learned more efficiently.
Associate Consultant at a consultancy with 10,001+ employees
A long lifecycle is key to having a good return on investment.
Architect at KnowIT
Being able to transform common manual tasks that previously took all day into processes that take an hour, half an hour, or even less, demonstrates clear value.
Systems administrator at a retailer with 501-1,000 employees
Red Hat Enterprise Linux has saved us time and increased productivity.
Cloud engineer at a tech services company with 11-50 employees
 

Customer Service

Sentiment score
5.2
Kali Linux provides strong community support and documentation but lacks direct customer support, relying on user self-research.
Sentiment score
7.1
Red Hat Enterprise Linux support is praised for its knowledge and proactiveness, despite concerns about response times and escalation.
Since most of the tools and other things are community-based, the documentation and other community support are very good.
Cloud Security Architect at a tech services company with 10,001+ employees
I was able to solve the problems I was experiencing.
Product security engineer at a tech vendor with 10,001+ employees
Red Hat Enterprise Linux (RHEL) support is great, as they go beyond their duty to help resolve issues and provide solutions even for third-party software such as XRDP.
Senior Infrastructure Systems Administrator at a healthcare company with 1,001-5,000 employees
When we do contact customer service, they are generally very knowledgeable and well-versed in our size.
Solutions Architect at a healthcare company with 10,001+ employees
Usually, I send the information, and they have something for me within hours, sometimes even minutes.
Team manager at Evertec
 

Scalability Issues

Sentiment score
7.5
Users find Kali Linux scalable and flexible, supporting diverse platforms, ideal for penetration testing and educational purposes.
Sentiment score
7.2
RHEL excels in scalability and adaptability across environments, efficiently managing workloads and facilitating infrastructure management with tools like Ansible.
You can use it on cloud, VPS, and on-premises.
Security Researcher at a consultancy with 10,001+ employees
I would describe Kali Linux's scalability as very scalable because I can deploy it on a range of different machines, whether that is my laptop or using maybe Raspberry Pi or Android.
Enterprise Cloud Operations Lead at a tech vendor with 10,001+ employees
Regarding the scalability of Kali Linux for my work and projects, whenever I was conducting brute force attacks and provided more than two or three million lines of payload, the system would freeze.
Product security engineer at a tech vendor with 10,001+ employees
Many of our applications scale really well, with some having several hundreds of VMs, which we couldn't accomplish on Windows.
Solutions Architect at a transportation company with 10,001+ employees
Red Hat Enterprise Linux (RHEL) scales very well with the growing needs of our company.
Director, DevOps at Lightedge Solutions
Red Hat Enterprise Linux (RHEL) handles increases in users, applications, or data smoothly, which is why we use it for all our projects, as it provides us with confidence.
Cloud Administrator at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
8.0
Kali Linux is praised for stability and dependability, recommended for virtualization, with occasional issues resolved using older versions.
Sentiment score
7.8
Red Hat Enterprise Linux is valued for stability, reliability, minimal downtime, and strong support, with quick resolutions for issues.
Due to the huge user base that uses it, it is kept up to date regularly.
Enterprise Cloud Operations Lead at a tech vendor with 10,001+ employees
Kali Linux is stable for my use cases, though not the latest version.
Product security engineer at a tech vendor with 10,001+ employees
Kali Linux is very stable for my needs.
Consultant at Cognizant
It works consistently with minimal downtime and very few bugs or glitches.
Senior DevOps Engineer at a financial services firm with 10,001+ employees
It just works, and that's really the key factor; I can't remember the last time we had a system go down and had to restore it due to a bad patch.
Senior software engineer at a financial services firm with 10,001+ employees
We've not had a service outage with Red Hat in six years.
Team Lead, Linux Systems & Tools at a tech vendor with 5,001-10,000 employees
 

Room For Improvement

Kali Linux users seek better automation, UI, security, and support, with improved installation, hardware detection, and beginner-friendly resources.
Users desire improved RHEL support, documentation, pricing, compatibility, user interface, updates, automation, security, cloud integration, and communication.
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.
Senior Technical Manager at a tech vendor with 10,001+ employees
I face significant challenges with Kali Linux regarding a major issue with the Grub loader becoming corrupted, which makes it very difficult to recover data.
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
If there were video courses attached to how to safely use it, especially for absolute beginners with no previous experience using Linux operating systems, I think that could be very useful.
Enterprise Cloud Operations Lead at a tech vendor with 10,001+ employees
Addressing these limitations would significantly enhance the operating system's flexibility and efficiency.
Senior DevOps Engineer at a financial services firm with 10,001+ employees
The built-in security features of Red Hat Enterprise Linux were insufficient for our needs, necessitating the implementation of supplementary security measures.
IT Infrastructure Engineer at a manufacturing company with 11-50 employees
By providing pre-installed, native automation tools within the operating system, Red Hat would streamline processes and improve user efficiency.
Systems Engineer at a tech vendor with 501-1,000 employees
 

Setup Cost

Kali Linux is a cost-effective, open-source solution for enterprises seeking a comprehensive operating system with no licensing costs.
RHEL is costly for small businesses but valued by large enterprises for its support, stability, and reliability.
Kali Linux is free software, an operating system that's available to download without any cost or licensing fees.
Associate Consultant at a consultancy with 10,001+ employees
I simply create a VM, so there are no costs involved.
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
My experience with pricing, setup costs, and licensing for Kali Linux has been positive, as it operates under an open-source model.
SWE-1 at a tech vendor with 10,001+ employees
It may be considered expensive compared to other solutions like CentOS or Ubuntu, which offer some of the same features without additional costs.
Cloud Infrastructure Architect at a healthcare company with 10,001+ employees
Its pricing has room for improvement because it's more expensive in the local market due to purchasing power parity in India.
Cloud engineer at a tech services company with 11-50 employees
Windows Servers base their cost on the number of users and have high licensing fees, while Red Hat Enterprise Linux offers free versions alongside its paid, supported versions.
Senior DevOps Engineer at a financial services firm with 10,001+ employees
 

Valuable Features

Kali Linux is favored for its pre-installed security tools, user-friendly design, and customizable features for efficient cybersecurity tasks.
Red Hat Enterprise Linux offers stability, security, support, automation, and robust performance, ideal for enterprise-level deployment and management.
Kali Linux has positively impacted my organization by improving efficiency in penetration testing; its open-source nature permits extensive customization and inclusion of numerous comprehensive pre-installed tools, contributing to a secure network environment with effective monitoring of network applications.
SWE-1 at a tech vendor with 10,001+ employees
A unique and really helpful feature of Kali Linux, compared to other operating systems, is that many of the offensive security tools are already pre-configured and pre-installed.
Product security engineer at a tech vendor with 10,001+ employees
Kali Linux positively impacts my organization by allowing us to monitor changes and security posture for the company.
Consultant at Cognizant
It also has strong security features, is OIS and FIPS certified, and has built-in Linux security configurations.
Cloud Infrastructure Architect at a healthcare company with 10,001+ employees
There is also no downtime.
Linux/DevOps Engineer at Ekwantu Consulting
The operating system allows for the simple addition of kernels, modules, and other applications, making it highly adaptable to various needs.
Technical Lead at a tech vendor with 10,001+ employees
 

Categories and Ranking

Kali Linux
Ranking in Operating Systems (OS) for Business
10th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
26
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
7.0
Number of Reviews
388
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Operating Systems (OS) for Business category, the mindshare of Kali Linux is 3.2%, up from 1.5% compared to the previous year. The mindshare of Red Hat Enterprise Linux (RHEL) is 7.6%, down from 11.1% 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)7.6%
Kali Linux3.2%
Other89.2%
Operating Systems (OS) for Business
 

Featured Reviews

Ciyagi Ciyagi - PeerSpot reviewer
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
Runs efficiently across devices and streamlines penetration testing workflows
Kali Linux could be improved by including more tools. I would personally like to see improvements in Kali Linux, particularly regarding Grub issues that sometimes occur when installing the VM. Additionally, I have experienced problems when updating Kali Linux from a higher version to a lower version, which resulted in crashes. These Grub issues should be resolved. I face significant challenges with Kali Linux regarding a major issue with the Grub loader becoming corrupted, which makes it very difficult to recover data.
RO
Server administrator at Northrop Grumman
Empowers collaboration through streamlined integration and extensive documentation
Improving Red Hat Enterprise Linux (RHEL) can be tough, however, a significant area is collaboration tools. We have many Windows users that use Outlook and Skype or Teams to collaborate on our network. They want Linux desktops due to the fact that they want to use containers. Their biggest complaint is, 'I need two workstations to do my container work and one to collaborate.' If somehow RHEL can start introducing or collaborating with Teams and Outlook so their users can work with their Windows peers, that would be great. But I don't think that's available yet. Regarding pricing, setup costs, and licensing, there needs to be more of an education piece to it. For instance, when purchasing 10 or 100 node licenses, they could suggest, 'We also offer this 1,000 node license instead, and it'll save you specific amounts.' Just more education on their offerings would be helpful, because usually, we're coming out with the requirements, and then they just provide it to us. They could inform us about saving by bundling it differently or using alternative approaches.
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Comparison Review

it_user281973 - PeerSpot reviewer
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…
 

Top Industries

By visitors reading reviews
University
14%
Comms Service Provider
13%
Educational Organization
11%
Computer Software Company
10%
Financial Services Firm
11%
Manufacturing Company
10%
Computer Software Company
10%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise16
By reviewers
Company SizeCount
Small Business87
Midsize Enterprise49
Large Enterprise266
 

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?
My experience with pricing, setup cost, and licensing for Kali Linux has been that it was free to use.
What needs improvement with Kali Linux?
I think Kali Linux is good, but there is a widespread misunderstanding related to Kali Linux because many people believe Kali Linux is a tool for hackers and that anything can be hacked using it. T...
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)?
Regarding pricing, setup cost, and licensing, the pricing is good; however, licensing is a bit confusing.
 

Also Known As

No data available
Red Hat Enterprise Linux, RHEL, Red Hat Enterprise Linux (RHEL) for AWS
 

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: December 2025.
881,082 professionals have used our research since 2012.