CloudLinux
From Atomicorp Wiki
ASL works with Cloudlinux. Currently, all of Cloudlinuxes kernel modification have not been integrated into the secure ASL kernel. Support for all of Cloudlinux's features is planned for 2013.
Therefore, if you use Cloudlinux, you will need to use the kernel that is supplied with Cloudlinux and not the secure ASL kernel to make use of CloudLinux's kernel features.
We are working very hard on supporting the remaining Cloudlinux kernel modifications in our secure kernel, and we are doing this in close coordination with Cloudlinux. As soon as all the Cloudlinux kernel features are integrated into the secure ASL kernel will we send out a notification to our Cloudlinux customers and we will update this page.