A virtual private server is a specialized computer or device linked to a network to provide online service. A virtual private server can act as a dedicated server providing web hosting resources, applications, and services to users on the same network or as a secondary server.
Physical hosts are assigned a physical network address. This address is used by other physical hosts in order to send and receive packets for the internet connection. A virtual private server does not have any physical address. Because it is not tied to a physical host, virtual private servers are not subject to congestion, routing tables, or physical network devices.
Physical hosts must be configured to accept incoming requests. This is done using a configuration management system (CMMS) or web-based management system (WMS). When a physical host accepts a request for a website or software, it is generally running on a standard operating system or Linux. The client requests a specific port number for the server to process the request.
If the request is for a Linux, it will be processed by a script that runs on the Linux host. The server will then forward the request on to another physical host or VPS host. In this way, the physical host is divided into multiple independent physical servers. Each physical server has its own separate network and virtual private server has its own separate IP address and TCP/IP address. The physical network address is used to connect to the virtual private server.
Virtual private servers can be used for both internal and external web hosting purposes. External web sites such as blogging sites are usually hosted on an external virtual private server. On the other hand, internal websites such as small businesses usually use internal virtual private servers for their web hosting needs.
An internal virtual private server is also referred to as an in-house server. It is normally linked to a physical computer and serves the purpose of a dedicated host. Internal virtual private servers are usually connected to another physical computer that is directly linked to the company network for data transfer and for backup purposes.
Physical security measures used to protect your website are usually provided by the physical server. This means that the physical hosting provider will typically provide physical security measures such as firewalls and physical security guards. Virtual private servers do not provide any physical security measures.
Physical servers can be used for virtual private servers, but not all physical servers are suitable for virtual private servers. Physical servers that host an operating system such as Linux cannot be used as a virtual private server host.
Because virtual private servers do not require a physical address, they are easier to set up than dedicated hosts. A virtual private server may be easily set up with less than $100 to start-up. and provide a fully functioning web hosting service.