Each and every personal computer or web server is run by an Operating System - the low-level software that interacts with the hardware, including peripherals such as a mouse and a printer, and any applications that are currently installed on the system. Any program input through a command line or a Graphical User Interface (GUI) is processed by sending an Application Program Interface (API) request to the Operating System. On a server, each application runs within the parameters specified by the OS as well - priority, physical memory, processing time, and so on. This goes for both standard site scripts and server-side software such as a media server. When a virtual server is set up on a physical one, there can be two separate Operating Systems, called guest OS and host OS, so that you can set up a different software environment on a single machine.
Multiple OS in VPS Servers
We offer three different Linux releases for the Operating System of our VPS servers - Debian, CentOS and Ubuntu. These are among the most stable and reliable OSs available on the market and we provide all three instead of just one because we realize that you might want to install some software that has specific requirements regarding the Operating System it'll run on. The latter is due to the fact that each of the three Operating Systems has a huge support community behind it and there're different software packages you may install on the server. Your OS selection will also determine exactly what hosting Control Panel can be installed on the VPS in case you wish to use one and because of this we offer several Control Panels too. Should you decide that you want a different OS, our technical support can quickly wipe the present one and install the one that you need. In addition, we offer an optional service to keep the OS on your VPS updated weekly.
Multiple OS in Dedicated Servers
We offer three Operating Systems with our dedicated server plans - CentOS, Ubuntu and Debian. They are all different Linux distributions and we offer them not only because they are cost-free and they won't increase the price of your new web hosting server, but also because they are extremely secure and stable. Each of them is supported by a big community of developers, so you'll be given the option to choose from countless software packages that you may install on your server if the application that you want to use has certain requirements. The Operating System will also determine what web hosting Control Panel you can use because the Control Panels that we offer are compatible with particular OSs only and because we would like to give you as much flexibility as possible, we offer multiple OSs and multiple Control Panels. If you get a server with a given Operating System, we could change it upon request if it turns out that you need another one. We will also keep the OS updated on a weekly basis as a part of the useful Managed Services upgrade.