OpenVZ is a container based virtualization solution. Among other things it means you can't run your own kernel or make changes to the existing kernel. The bigg

OpenVZ is a container based virtualization solution. Among other things it means you can't run your own kernel or make changes to the existing kernel. The biggest problem I've encountered with it is not being able to set up certain iptables rules without a particular setting on the OpenVZ host being enabled (which often requires a support ticket). To put it simply, OpenVZ works similarly to Docker rather than VirtualBox or VMWare and comes with similar benefits and limitations.