CloudLinux is an operating system specifically designed for shared server providers. It has functions that improve data security, stability, and density by separating all the users using shared server resources into a lightweight virtualized environment (LVE) kernel technology..

In a shared server, the most common downtime reason is a single account grabbing most of the shared resources due to heavy sites or unoptimized scripts. CloudLinux OS is designed especially for servers being used in this way, making the situation where one or several users cause severe load or even hang up the server impossible.

CloudLinux improves the server stability by encapsulating each client in a secure, isolated environment. It means that each user on the server is limited by the amount of resources it can use, being placed in a so-called 'container' (separated operating environment).

Benefits of CloudLinux

1. Stability
2. Security
3. Profitability
4. Performance

1. Stability

CloudLinux controls fluctuations in resource usage and ensures that servers are stable in all conditions. It reduces the resource usage of a single user and enhances server stability.

• Lightweight Virtual Environment It limits all CPU, IO, memory resources, numbers of processes, and concurrent connections per user. A single site can easily bring your server to a halt by consuming all your CPU, memory, and IO resources. LVE technology prevents that by allowing to set up individual resource limits. This ensures that a tenant can never use more resources than they are given. The goal of LVE is to ensure that no single website can bring down your server.

LVE benefits include
Ensure Utmost Stability
Increase Revenue
Reduce Churn Rate

• MySQL Governor MySQL is one of the main causes of issues on a shared server. MySQL Governor monitors MySQL usage and throttles abusers, and prevents them from overloading the server, which improves overall stability and performance.

MySQL Governor keeps MySQL stable. With support from the latest versions of MySQL and MariaDB, it is a must-have for any shared host. MySQL Governor tracks CPU and disk IO usage for every user in real-time and throttles MySQL queries by using same-per-user LVE limits.

Benefits of MySQL Governor include:
Stable, simple limits counted as part of LVE limits
Automatic detection and killing of long-running queries
MySQL 5.1 – 5.7 support
MariaDB 5.x and 10.x support

2. Security

CloudLinux releases security patches at regular intervals to protect the websites hosted on it. In addition, a lightweight virtualized environment (LVE) protects your websites from malware and hackers accessing vulnerable files.

• CageFS CageFS is a virtualized, per-user file system that uniquely encapsulates each customer, preventing them from seeing each other and viewing sensitive information. CageFS stops a large number of attacks, including most privileged escalation and information disclosure attacks. It is completely transparent to your customers, without any need for them to change their scripts.

Benefits of CageFS
Users have access to safe files only.
Users cannot see other users and there is no way to see other users or user names on the server.
Users cannot see server configuration files.

• Hardened PHP
  Highly popular versions of PHP, used in nearly 85% of all PHP sites, are unsupported by the PHP.net community. HardenedPHP secures old and unsupported versions of PHP 4.4.9 to 7.2.

• SecureLinks
  SecureLinks is a kernel-level technology that prevents all known symbolic link (symlink) attacks and improves the security level of the servers even further and prevents malicious users from creating symbolic link files.

3. Profitability

As you limit the use of resources for every customer, you can upsell them to the next level plan when they cross their limit without switching their server. Customers can select a special PHP, Ruby and Python version for applications and even install extra modules to the environment.

• PHP Selector The PHP Selector allows end-users to select the specific version of PHP they need. It allows ultimate flexibility by offering all popular versions of PHP, with more than 120 PHP extensions to choose from.

Benefits of PHP Selector
Supports PHP versions 4.4, 5.1-5.6, and 7.0-7.2
Supports 120 PHP extensions

• Python Selector The Python Selector offers end-users to select the Python version they need. It allows end-users to choose the Python version as an application and install additional modules according to their need. Python Selector uses mod_passenger to get the best performance from Python applications.

Supported Alt-Python versions include:
alt-python27 2.7.9, supported by CloudLinux 5-7
alt-python33 3.3.2, supported by CloudLinux 6-7
alt-python34 3.4.1, supported by CloudLinux 6-7
alt-python35 3.5.4, supported by CloudLinux 6-7

• Ruby Selector The Ruby Selector allows end-users to select the specific version of Ruby they need. It allows end-users to choose the Ruby version for applications and install additional modules to the application environment according to their needs. Ruby Selector uses mod_passenger for optimum performance.

Benefits of Ruby Selector
Supports Ruby versions 1.8, 1.9, 2.0, and 2.1
Allows users to install additional modules

4. Performance

CloudLinux also offers a set of performance enhancing benefits including Mod_Lsapi, PHP X-Ray and Centralized Monitoring.

• Mod_Lsapi Mod_Lsapi is the fastest and most reliable method to serve PHP pages. It is a drop-in replacement for SuPHP, FCGID, RUID2, and ITK. It has a low memory footprint and understands PHP directives from .htaccess files. Mod_Isapi:

Benefits of Mod_Lsapi
Is faster than any other way to serve PHP with Apache.
Includes opcode caching.
Is compatible with PHP Selector, MPM Worker and Event.
Does not require tuning.
Includes support for PHP directives in .htaccess files.
Is a drop-in replacement for existing ways to serve PHP

• PHP X-Ray When a website goes down, there’s usually a problem with its CMS to restore its performance, it used to be necessary to delve into its WordPress installation and diagnose the problem by hand. Now, on servers that run CloudLinux OS Shared Pro, performance problems can be identified immediately using a new tool called PHP X-Ray.

PHP X-Ray troubleshoots performance issues in PHP-based websites, such as Slow plugins, Slow database queries, Slow functions etc.

Benefits of PHP X-Ray
Easy to install
User Friendly
Simple Detection
Integrated with LVE Manager

• Centralized Monitoring Centralized Monitoring allows system admins to monitor all the servers, determine the load on each one, and identify the users creating the most load. If a domain is using an inordinate amount of CPU, memory, or disk resources, this tool helps bring it under control.

Centralized Monitoring offers a detailed look and easy monitoring at the load on any and all servers throughout your infrastructure.

Server performance (RAM, CPU, disks, system load, network, open files, IO)
Hardware temperature
Number of users
Apache connections
MySQL connections
CPU steal time for VM
Per-user resources (CPU, RAM, Processes, IO, MySQL CPU and IO)

Benefits of Centralized Monitoring
Performance bottlenecks detection
Out-of-the box solution
All performance monitoring in one place
Custom notifications and alerts

Conclusion

In this article we have covered all the outstanding benefits of CloudLinux. Ultimately CloudLinux offers several organizations an easy, reliable, compatible, affordable, efficient, secure and great customer support to their website’s server. We hope you have understood all the benefits of CloudLinux although if you have any issue feel free to contact us.

Supportfly provides a comprehensive suite of tools and expert support that empower businesses and service providers to maximize the potential of their Linux servers while ensuring a smooth and efficient operation. Our team of expert admins will help you with the Cloudlinux cpanel and CloudLinux server.