The main server is set up with a control system that oversees all the resources. This is transparent to the VPS owner, and it will not affect how your private server operates. Just make sure of what is promised from your hosting company to make sure you have full access to what you need.

You can use a Virtual Private Server setup to Windows RDP VPS become a reseller yourself. You will be able to control all the resources and can then, yourself, set up others on shared hosting. You will be able to control the various domain space and email accounts as necessary. To your customers, it will appear as if they have their own server, even though it is shared. You will have oversight to control all that goes on under the authority of your VPS.

This is good to know, because when you want to purchase shared server space, you will want to ask if it is on a stand alone server or a VPS. A good web hosting company will have many servers which they own entirely. See if your provider has been certified to ISO 27001. This is the current standard for information security. There is much to be wary of - Denial of Service attacks, viruses and unauthorized access are just a few of the risks.