Virtual Dedicated Server (VDS or VPS): Definition, Operation And Advantages


A virtual private server, also called Virtual Private Server (VPS) or Virtual Dedicated Server (VDS) in English, is a virtualized server on a physical server that groups many virtual servers. Learn about the definition, operation, advantages and disadvantages of VPS, as well as the criteria to consider when choosing a supplier.

A virtual private server is a virtual server offering concretely the same possibilities as a dedicated server . However, this server is currently installed on a computer with multiple virtual servers. Each VPS installed on the computer runs on its own OS and runs hosting software for a specific user.

Virtual dedicated server (VPS): how does it work?

VPS providers use virtualization software, also known as hypervisors, to provide users with access to an emulated server based on the resources of a physical server Cheap Web Hosting in Pakistan This emulated server is called a virtual machine (VM). Each virtual machine runs an operating system in its own right, and benefits from access to some of the computing power, RAM and storage of the physical server on which it is emulated.

Users have access to the operating system of the virtual machine; but can not directly access the physical server. Thus, multiple users can use emulated virtual machines on the same server , but can not access other users’ virtual machines. Thus, despite the absence of physical separation, each VM is private.

Virtual dedicated server (VPS): what a difference with shared hosting

VPS should not be confused with shared hosting. To understand the difference between the two, the simplest is to take the image of real estate. Shared accommodation is like renting an apartment . The host who holds all the space is comparable to the owner of the building. The owner rents both the apartments and common areas such as the pool, the parking spaces or the gym that can be compared to the computing power, RAM and disk space. For their part, the inhabitants share these resources.

In the case of VPS, users may own their apartment . Common areas are always shared, but a portion can be owned. However, unlike the tenant of an apartment (shared accommodation) the owner must maintain his own interior and take care of repairs and modifications. It should also be noted that the VPS has a much smaller population. The disadvantages of VPS are a price usually higher than shared hosting. Users must also have technical skills, including to use unmanaged VPS hosting. VPS also requires more time and effort, for example to make sure it stays stable and secure.

If we compare the VPS with the dedicated server, to spin the metaphor, we could compare the VPS to an affordable property. Dedicated accommodation is closer to a luxurious home . The user here is the owner, is responsible for all cleaning and maintenance, but also the outside and the landscape. Technical expertise is therefore essential. In short, the VPS is halfway between the shared hosting and the dedicated server.

vs vs shared hosting

Virtual dedicated server (VPS): what are the benefits?

The VPS have several advantages over traditional web hosting services . One of the key benefits is the ability to access the full VPS operating system. The root and administrator permissions are not restricted. Thus, each user can configure his VPS according to his own preferences and needs.

The user can also opt for additional services such as an FTP site, a mail server, or specialized applications for e-commerce or blogging for example. Another advantage is that VPS allows the user to host multiple websites. The benefits are therefore multiple.

Virtual dedicated server (VPS): what are the disadvantages?

Typically, VPSs are used by small businesses that want the flexibility of a dedicated server, but can not afford to invest in such a device. Unfortunately, the VPS has several weaknesses compared to a real dedicated server.

First, the performance is much lower than that of a real dedicated server . VPS providers tend to limit server performance to maximize the number of VPS that a physical server can support. Even if performance is not intentionally limited, an adjacent VPS might consume too much resources and reduce performance.

A further disadvantage of the VPS to consider for safety Web Hosting in Islamabad  VPS is usually based on server virtualization, which keeps VPSs isolated from each other. Nevertheless, zero risk does not exist, and it is always safer to avoid shared environments.

Virtual dedicated server (VPS): what are the criteria to consider?

vps criteria

Several criteria must be taken into account when choosing a VPS provider. The main criteria include the operating system (Windows or Linux). You must also choose between a managed server or not . If you do not have a certain level of expertise, it is better to opt for a managed VPS. It is also better to learn about the redundancy and scalability proposed by the provider.

Of course, the price is also one of the most important criteria . Rates can vary enormously from one VPS to another depending on the performance and features offered. Typically, a basic VPS with 1GB of RAM and 20GB of storage space is charged between $ 8 and $ 15 a month. Some providers offer a free trial period, which can be very useful to check if the offer meets your needs.

You will also have to choose between a conventional VPS or a cloud-based VPS . In the case of a cloud VPS, the physical server that groups the virtual servers is actually composed of several machines. Cloud VPS offers more flexibility because it makes it easy to add servers to the cluster, and also adds more storage space to the centralized storage system.

Another essential criterion: the technical characteristics of the VPS which define the performances. RAM, storage space, restrictions on data transfers, distributions, backup features, the number of IP addresses offered or the power of the processor must match your needs. Finally, the quality of the customer service is to be studied thoroughly.

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