You can easily customize the network configuration for your Amazon VPC. For example, you can create a public-facing subnet for your web servers that has access to the Internet, and place your backend systems such as databases or application servers in a private-facing subnet with no Internet access. You can leverage multiple layers of security, including security groups and network access control lists, to help control access to Amazon EC2 instances in each subnet.
A VPN server is a machine on the internet that runs VPN software. A VPN client can connect to that server, and all data that travels between the client and the server is encrypted. If you wanted to connect to a website on the internet but didn’t want anyone, even your ISP, to see which site it was or the data your were sending, you could connect via a VPN. All an observer would be able to see is that you connected to the VPN server.
Users of Shared hosting all share the resources on the server their websites are on. There is no guarantee of RAM or CPU with Shared hosting. Shared hosting also does not provide full root access to the server, as opposed to VPS package where users are given full root access to perform commands and make configuration changes to their hosting environment.
Virtual means that the server runs in a virtualized environment, a cloud server rather than a physical server. This differentiates Virtual Private Servers from dedicated servers, which are physical machines in a data center rack. Virtual servers have the same functionality as a dedicated server and they look more or less the same from the client’s perspective, except that several virtual servers live on a single physical server.

InMotion Hosting's Virtual Private Servers are now using Solid State Drives (SSDs), a type of hard drive that uses no mechanical parts and provides substantial performance upgrades from traditional spinning drives. Solid State Drives give you faster read/write speeds, can handle more disk requests and can push through significantly more data than a standard Hard Disk Drive (HDD).
If you want reasonably priced server space that won't load pages at a snail's pace when a neighboring site gets a huge traffic spike, VPS is a good option for your business. We've reviewed many VPS hosting services and included the best of the bunch in this guide. You should look into a dedicated server if you want to build a website on an even stronger foundation and can afford the bill.
Deploy a full range of open-source and community-driven software solutions on Azure. Choose from a full range of Linux distributions like Red Hat, Ubuntu, SUSE, and community-driven solutions like Chef, Puppet, and Docker. Deploy virtual machines for other products like Oracle Database and Oracle WebLogic Server. Azure is open with lots of options.
It provides you with even more options, including root access, access to Apache and PHP.ini (modification of PHP variables), and much more. You can also install an SSL certificate, and all software program types. In short, you get more freedom in terms of administering and configuring your server, without the hassle of managing any physical hardware.