An article by Top Web Hosting.
To meet the demand for cheap, but steady and reliable hosting services, providers introduced a middle-class hosting solution - the Virtual Private Server. This is a virtual emulation of a server that behaves exactly like a dedicated server and is much more powerful than any shared hosting plan. At the same time, as a number of accounts are created on the same physical server and each person pays for their account, the price for a VPS package is significantly lower than the price for a dedicated hosting server. A low-end VPS hosting plan is slightly more expensive than a hi-end shared hosting plan, but its resources exceed by far those of the shared plan.
Each individual account is insulated from all other accounts on the server, so each VPS can run a different Operating System and be restarted independently from the other ones. The management is done through a virtualization panel where users can see all running processes and stop or restart them, update server-side applications, view the consumed and the available system resources, and much more. OpenVZ, Virtuozzo, Virtual PC and VMware are just a few examples of software platforms used for creating and managing VPS plans. They have different requirements regarding the CPU architecture, the Operating Systems they can be installed on, and the Operating Systems they support. For example, Virtuozzo can run on machines with x86 or AMD64 processors, can be installed on a server running both Windows and Linux OSs, and allows both of these OSs to be installed on the actual virtual servers.
The virtualization panel gives the client independence from the provider for the management of the VPS, saving the time to wait for their support staff to restart a service or restore a backup. If the client is not tech-savvy though, many top hosting companies like 'ResellersPanel' offer an optional upgrade that includes OS and software installation and update procedures, VPS backups, as well as dedicated administrator support and troubleshooting procedures. The impressive thing with 'ResellersPanel' is that there are several VPS data center locations to choose from: the United States, the United Kingdom and Australia.
The domain names and the web content on the VPS are managed through a hosting Control Panel tool, similar to a regular shared hosting account’s. The difference is that with shared hosting accounts, clients get one particular Control Panel, while with a VPS plan, providers usually offer a number of Control Panels to choose from, and the more advanced users can install and use the Control Panel they want. Some virtualization panels support installing a hosting Control Panel through them to make things easier for the user. Unfortunately, most hosting Control Panels are paid. Some require a monthly fee (cPanel asks for $13/month, check out BuycPanel.com), while others demand a license fee (DirectAdmin). There are other hosting Control Panels that restrict the number of the hosted domains (Plesk). While we speak of hosting Control Panel-equipped VPSs, it's good to mention that, by default, all VPS packages offered by 'ResellersPanel' are equipped with the Hepsia hosting Control Panel. The latter includes unlimited hosted domain quotas. Hepsia comes at no additional license cost, thus the monthly price of the VPS package chosen by the customer does not change. Last, but not least, Hepsia probably has the best Domain Manager on the hosting Control Panel market.
The hosting Control Panel tool allows users to manage domains, files, databases, FTP and email accounts, to check traffic and load logs and to view detailed statistics about the consumed and the available resources. Similar to the virtualization panels, the hosting Control Panels are designed to run under a certain Operating System. For example, cPanel, which is one of the most popular Control Panels, runs only under Linux CentOS, while Enkompass, which is created by the same company, runs only under Windows. Other Control Panels like Plesk and Hepsia are multi-platform. Hepsia is compatible with the CentOS, Debian and Ubuntu Linux distributions. The advantage of some Control Panels over others is that they have several levels of control - administrator, reseller and client. Each level has access to a different set of functions controlling the levels below, so it is easy to set up a reseller website and start making money by selling web hosting to other people. As clients will see what percentage of the system resources is consumed, but will not see the real numbers, even a small VPS package will suffice to run a small hosting company and earn money.
A Virtual Private Server (VPS) is a relatively cheap web hosting solution, but it is powerful enough to support websites such as a busy online store or a large company portal. As its management is simple, it is the preferred choice of both novices and experienced users.