The golden rule for unmanaged VPS hosting is this: If you have a problem with your unmanaged VPS Account, it is your problem. If the problem is software related, resource related, performance related, need troubleshooting or configuration of software, or need general help understanding Unix or server applications, you are on your own and should not expect help from the web host.
AutoSSL is available for free and can be installed using WHM in cPanel. You can use this tool to issue Domain Validated SSLs through Comodo at no additional charge. If you require a different type of SSL you can purchase a 3rd party SSL and install it directly or have us install it for you. SNI is enabled so you can use a single IP to support multiple SSLs.
The force driving server virtualization is similar to that which led to the development of time-sharing and multiprogramming in the past. Although the resources are still shared, as under the time-sharing model, virtualization provides a higher level of security, dependent on the type of virtualization used, as the individual virtual servers are mostly isolated from each other and may run their own full-fledged operating system which can be independently rebooted as a virtual instance.