Software Alternatives & Startups

KolibriOS VS CloudLinux

Compare KolibriOS VS CloudLinux and see what are their differences

KolibriOS

KolibriOS is a tiny yet incredibly powerful and fast operating system.

CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

Rating
0 reviews
Pricing
Open source
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, KolibriOS seems to be more popular. It has been mentioned 19 times since March 2021.

social mentions
19 vs 0
Linux popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

KOS
KolibriOS
CloudLinux
Website kolibrios.org cloudlinux.com
Pricing —
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

KOS
KolibriOS 5 features
CloudLinux 5 features
  • Lightweight
    KolibriOS is extremely lightweight, requiring only about 1.44 MB of disk space, which allows it to run smoothly on older hardware and low-resource systems.
  • Fast Boot Time
    The operating system can boot up in a matter of seconds due to its minimalistic design and small footprint.
  • Graphical User Interface
    Despite its small size, KolibriOS offers a functional graphical user interface that is intuitive and simple to use.
  • Wide Range of Built-In Applications
    KolibriOS comes with a variety of pre-installed applications including text editors, games, and utilities, providing basic functionality out of the box.
  • Open Source
    Being open source, KolibriOS allows users and developers to modify, distribute, and study the source code freely.

Possible disadvantages

  • Limited Software Compatibility
    KolibriOS does not support mainstream software applications natively, which can limit its use for everyday tasks.
  • Lack of Advanced Features
    The operating system lacks many advanced features found in more modern OSs, such as multi-user support and comprehensive security features.
  • Small Developer Community
    The relatively small community means less frequent updates, fewer learning resources, and limited user support compared to larger operating systems.
  • Limited Hardware Support
    KolibriOS may not support modern hardware components effectively due to its focus on simplicity and minimalism.
  • Not Suitable for Heavy Computing
    The system is not designed for resource-intensive applications or multitasking environments, making it unsuitable for professional or demanding computing tasks.
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

An editorial look at what each product does well and who it suits.

KOS
KolibriOS
CloudLinux

No analysis of KolibriOS yet.

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

KOS
KolibriOS 2 videos + Add
CloudLinux 3 videos + Add

KolibriOS 0.7.7.0+ night

More videos

  • - KolibriOS review

When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
KOS
KolibriOS
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

Share your experience with using KolibriOS and CloudLinux. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

KOS
KolibriOS 4.0 · 2 reviews
CloudLinux no reviews yet

We have no reviews of CloudLinux yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

KOS
KolibriOS 19 mentions
CloudLinux 0 mentions
  • Show HN: Rhun, an open-source code editor written in assembly
    Btw if you're interested, you can browse https://kolibrios.org/en code (https://github.com/KolibriOS) for a more complex codebase. - Source: Hacker News / about 1 month ago
  • MenuetOS – a GUI OS that boots from a single floppy disk
    Note that the 64-bit version is not open source. KolibriOS (https://kolibrios.org/en) is an active fork of the open source 32-bit version. - Source: Hacker News / 9 months ago
  • Learning to Program with Haiku
    > https://serenityos.org/ Trad Unix, redone in C++; not self-hosting; project lead has quit to work on a browser. > https://collapseos.org/ Interesting but mainly for extreme smallness. Forth will alienate a lot of people. For me, Oberon... - Source: Hacker News / over 1 year ago

View more

Tracking CloudLinux since Mar 2021.

Alternatives to KolibriOS and CloudLinux

When comparing KolibriOS and CloudLinux, you can also consider the following products.