CloudLinux is a Linux operating system designed to improve control in the shared hosting and data center arena, while simultaneously increasing control and stability, as well as improving overall performance. It employs kernel level technology called LVE to allow Web hosting companies to control QoS of each individual Web site as well as each section of the Web site. The technology can be used for any multi-tenant environment, where it is beneficial to control resource usage of individual tenant. With CloudLinux, hosting companies can make sure that a single site cannot slow down or take down other Web sites. The OS is interchangeable with CentOS.