CloudLinux is an industry leading OS that improves server stability, density, and security by isolating each tenant and giving them allocated server resources. This creates an environment that feels more like a virtual server than a shared hosting account. By doing so, CloudLinux OS reduces operating costs and churn rates, and increases profitability.
It has the following Features:
CageFS uniquely encapsulates each customer, preventing users from seeing each other and viewing sensitive information. It prevents a large number of attacks, including most of the privilege escalation and information disclosure attacks.
LVE manager gives you full control over CPU, IO, memory, number of processes, and concurrent connections per user. Limit abusers, provide good customers with what they need, and upsell at any time.
Apache mod_lsapi is a module based on LiteSpeed Technologies API for PHP, Ruby and Python. It offers excellent PHP performance, low memory footprint coupled with great security and support for opcode caching.
How it works
Mod_lsapi is a part of Apache. Apache passes handling for PHP request to mod_lsapi. Mod_lsapi uses liblsapi to transfers request lsphp daemon. Lsphp processes request and return data to mod_lsapi.
Each user has lsphp processes in separate CageFS/LVE. If there is no requests for lsapi_backend_pgrp_max_idle seconds, lsphp process is terminated. If no lsphp processes available when new request comes, new lsphp process is created. Lsphp can process lsapi_backend_children requests simultaneously.
PHP Selector is a CloudLinux component that sits on top of CageFS.
It is compatible with the following technologies: suPHP, mod_fcgid, CGI (suexec), LiteSpeed.
It is not compatible with mod_php/DSO, including mod_ruid2 and MPM ITK.
With PHP Selector your customers will have the flexibility to choose any PHP version they need, including 4.4, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, and 7.0. CloudLinux OS also ensures that PHP is updated fast, making sites more secure and customers happy.
Enjoy the increased stability of CloudLinux OS without sacrificing compatibility. It works with all major control panels and is compatible with most software commonly used with CentOS and RHEL.
MySQL is one of the main causes of issues on a shared server. MySQL Governor monitors MySQL usage, and throttles abusers, preventing them from overloading the server and improving overall stability and performance.
In old PHP versions, including widely used 5.2, 5.3, and 5.4, vulnerabilities, even if discovered, are not patched by the PHP.net community. HardenedPHP fixes those vulnerabilities and secures old and unsupported versions.