For over years the traditional shared hosting environment was based to share all the resource available in a server between all the users in them.
With Cloudlinux OS each user/tenant is separated into its own virtualization layer, with this each tenant have its own resources and they cant go over them.
So one user overusing and overloading the entire server affecting the rest of the users in it is almost impossible.
With this kernel-level technology the server stay stable by isolating the impact to the affected tenant.
