Software Alternatives & Startups

Nagios VS CloudLinux

Compare Nagios VS CloudLinux and see what are their differences

Nagios

Complete monitoring and alerting for servers, switches, applications, and services

Rating
0 reviews
Pricing
Open source
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.

Base details

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

Nagios
CloudLinux
Website nagios.org cloudlinux.com
Pricing
Open source
Open source
Company Startup from the United States —
Listed in

Features and specs

What each product offers, as listed by its team.

Nagios 5 features
CloudLinux 5 features
  • Extensive Community Support
    Nagios has a large and active user community, which means you can easily find help and resources online. There are numerous plugins and add-ons developed by the community that can extend the functionality of Nagios.
  • Highly Customizable
    Nagios is highly customizable and flexible. It allows you to tailor monitoring to suit your specific needs, including creating custom plugins, modifying configuration files, and integrating with other tools.
  • Comprehensive Monitoring
    Nagios provides detailed monitoring of network services, host resources, and infrastructure systems. This includes the ability to monitor CPU load, disk usage, memory, and more.
  • Alerting and Notification
    Nagios has robust alerting and notification features that ensure you can stay informed of any issues or downtime. Alerts can be sent via email, SMS, or other communication channels.
  • Scalable
    Nagios is scalable and can grow with your organization. It supports a large number of hosts and services, making it suitable for both small and large enterprises.

Possible disadvantages

  • Steep Learning Curve
    Nagios can be quite complex to set up and configure, especially for newcomers. The learning curve is steep, requiring time and effort to fully understand and utilize its capabilities.
  • Manual Configuration
    A significant amount of configuration is manual, particularly in the open-source version. This can be time-consuming and prone to human error, especially in larger environments.
  • Interface
    The user interface of Nagios is often considered outdated and less intuitive compared to other modern monitoring tools. The web interface can be difficult to navigate and is not as visually appealing.
  • Performance Issues
    Nagios can experience performance issues, particularly when monitoring a large number of hosts and services. It can become resource-intensive, requiring careful optimization and tuning.
  • Cost of Enterprise Version
    The enterprise version of Nagios, Nagios XI, comes with a significant cost. While it offers additional features, support, and a more user-friendly interface, it might not be affordable for all organizations.
  • 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.

Nagios
CloudLinux

Overall verdict

  • Nagios is generally considered a good tool, especially for users who require a highly customizable and adaptable monitoring solution. It is reliable and well-established in the IT industry.

Why this product is good

  • Nagios is considered a robust monitoring tool due to its flexibility, comprehensive network and application monitoring capabilities, and wide adoption in the industry. It allows system administrators to monitor critical infrastructure components, such as network protocols, applications, services, servers, and network infrastructure. Its active community and plugin ecosystem provide extensive customization options.

Recommended for

  • Organizations with complex IT environments needing comprehensive monitoring
  • System administrators who require flexibility and customization
  • Users who are comfortable with manual configurations and open-source solutions
  • Companies seeking a large community and a wealth of plugins for various use cases

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.

Nagios 3 videos + Add
CloudLinux 3 videos + Add

Stop using Nagios - Andy Sykes

More videos

  • - Bernd Erk - Why favour Icinga over Nagios
  • - How Nagios XI Works

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
Nagios
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Reviews and articles

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

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Alternatives to Nagios and CloudLinux

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