Partitioning a single server to appear as multiple servers has been increasingly common on microcomputers since the launch of VMware ESX Server in 2001. The physical server typically runs a hypervisor which is tasked with creating, releasing, and managing the resources of "guest" operating systems, or virtual machines. These guest operating systems are allocated a share of resources of the physical server, typically in a manner in which the guest is not aware of any other physical resources save for those allocated to it by the hypervisor. As a VPS runs its own copy of its operating system, customers have superuser-level access to that operating system instance, and can install almost any software that runs on the OS; however, due to the number of virtualization clients typically running on a single machine, a VPS generally has limited processor time, RAM, and disk space.[2]
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.

Use Virtual Network to build your services that rely on Azure cloud services and Azure Virtual Machines. Use Azure web roles for your front end and virtual machines for backend databases. Combine platform as a service (PaaS) and infrastructure as a service (IaaS) in a virtual network to get more flexibility and scalability when you’re building apps.


 – Error-proof sandbox – Virtual private servers give you “do-over” potential because they exist within a virtual sandbox. Damaging a virtual server won’t impact the operating system running on the hardware itself. “The VPS can be rebooted or reinstalled without much issue except maybe for lost data (so always keep backups),” notes Joel Lee of MakeUseOf. “On a dedicated host, a mistake could cause permanent damage.”
While our virtual private server plans are designed to be managed with command line, you have the option to add cPanel for your VPS management! cPanel is an extremely easy to use control panel. Use it to manage everything including your files, databases, email and sites. When you add cPanel, you also have the option to add Softaculous! Use Softaculous to install today's most popular software with just a single click. Setup WordPress, Drupal, Joomla, Magento, PrestaShop and more! You'll also get automatically notified when a new version of your software is released. Easily log into your cPanel control panel, click the Softaculous icon and update your software with a single click!
Sometimes you need more power than an entry-level web hosting service can provide. If you're looking to take your business online and want to build your website on a server that offers more power, stability, and flexibility than shared hosting, but you don't want to pay the higher cost of dedicated hosting, VPS, or virtual private server hosting, may be the perfect middle-of-the-road service tier for your business.
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.
In a dedicated hosting plan, a client leases or rents a physical server from a hosting provider. With Dedicated hosting plans, the client has complete control of the physical server and access to all its resources. This is a good fit for companies that have websites that expect a high amount of traffic, that are running intensive CPU applications, and that are hosting enterprise CMS sites.

Shared hosting: With shared hosting, your site is stored and served from the same physical machine as many other customers – possibly hundreds of them. All domains are drawing from the same CPU, RAM, and other resources.  This type of hosting is the lowest-priced option. However, your site’s speed and reliability suffer from other users, and you don’t get root access.
If you are developing real time systems, then unmanaged servers can help you a great deal. The applications using the response system like the one used in science or engineering can make use of unmanaged VPS hosting in a best way. When there are no skilled technicians to take over the charge of your server administration, it is always a best decision to go for unmanaged VPS hosting.
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.
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