CloudLinux virtualizes user accounts using a feature called LVE (LightWeight Virtual Environment). Each LVE is allotted a certain amount of resources (memory, CPU, etc.) which are separated from the server’s total resources. If a particular account receives a sudden increase in traffic or begins to use a lot of CPU or memory, rather than slowing the entire server and possibly causing a failure, only that particular LVE will slow down.
In CloudLinux based shared hosting environments, once a website account reaches its limit of set resources, the site will begin to slow down. The website account consuming too many resources will temporarily stop working until resource usage returns to normal. Meanwhile, other website accounts on the server will continue to run normally.
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.
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.
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.
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.