How to install these..

[steven_elvisda]

CloudLinux CageFS CloudLinux CageFS is not installed. This CloudLinux option greatly improves server security on we servers by separating user accounts into their own environment

CloudLinux Virtualised /proc CloudLinux Virtualised /proc is not configured. You should configure it in /etc/sysctl.conf to prevent users accessing server resources that they do not need on web servers

CloudLinux Disable ptrace CloudLinux Disable ptrace is not configured. You should configure it in /etc/sysctl.conf to prevent users accessing server resources that they do not need on web servers

How do I install these?

Also is there a way to upgrade Cloudlinux, I noticed some servers have plans connected to the limits and some do not.

[jules]

Try reading the documentation? The text youve pasted even gives you the URLs to the relevant docs...