A VPS runs its own copy of an operating system (OS), and customers may have superuser-level access to that operating system instance, so they can install almost any software that runs on that OS. For many purposes they are functionally equivalent to a dedicated physical server, and being software-defined, are able to be much more easily created and configured. They are priced much lower than an equivalent physical server. However, as they share the underlying physical hardware with other VPSes, performance may be lower, depending on the workload of any other executing virtual machines.[1]
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]

Update: I finally managed to connect to the Live Chat on day 3 but my experience was horrendous, to put it mildly. I had two simple sales questions, but the operator did not have any idea what I was talking about. She was pushing me generic links, and when I asked her to consult a technician, she came back a few minutes later…asking me what my username was.
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You also get the following benefits:

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]

Ubuntu is one of the most popular desktop Linux distributions which also has a web server variant as well as the Kubuntu package. Overall, Ubuntu, Debian, and Red Hat Enterprise Linux (RHEL) are commonly found in web hosting and private cloud data centers in use as web servers, with Fedora and openSUSE more popular among independent web developers and PHP/Python programmers.

12/04/2019 at 9:00 a.m. (Eastern Standard Time) and

VPS Web Hosting is ideal for business sites and websites that require increased resources to handle more traffic than a shared hosting plan allows. And with Managed VPS Hosting plans simplifying the process, you don’t need to be a tech expert to use VPS Hosting for your websites. Here our three VPS Hosting Plans we would put at the top of any list.
With VPS Hosting, there are multiple instances of separate operating systems on a machine—thus giving you your own virtual private server. So while you still may be sharing a physical server at the data center, with your own virtual operating system, you’re able to have dedicated resources such as RAM, bandwidth, and disk space. In other words, the environment mimics having a dedicated server—at a lower cost!
Angela Olaru:

Thanks to a hypervisor, a guest OS does not ‘know’ about other virtual machines on a bare-metal server. Like that frog who lives in the well thinking he is in the ocean, a virtual machine ‘believes’ that it is a physical server. In this case, theuser can have root access to a VPS and control its software. Additionally, if we decide to upgrade something or change a physical machine altogether, we do not need to make changes in a guest OS. Let’s get a closer look at advantages of VPS hosting.
"Root" gives you administrative level access to edit, install and configure all of the files on your server, including system-critical files. It gives you ultimate access to your server. This gives you the ability to configure your server to your exact needs. While root access gives you full control of your server, it is intended for experienced users, engineers and developers. That's because you do have the potential to misconfigure or delete those system critial files if you're unfamiliar or inexperienced with what you're doing.
Yuriy Gandyak:
The answer to this question is a definitive “maybe.” Since you’re looking at this site, you might be a Web designer who has a few sites, an online portfolio, and a couple of long-standing clients whose sites you manage. Is a VPS for you? Well, you’ve most likely outgrown a shared platform, and as a professional, it won’t do to have your site run poorly because another site that you share a server with is using more than its fair share of resources. A dedicated server could be overkill – if you don’t need all the resources on a consistent basis, you may not be able to justify the expense.
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