What is VPS

VPS refers to virtual private server, which is a service that divides one server into multiple virtual private servers. Each VPS can be assigned an independent public IP address and independent operating system to achieve isolation of disk space, memory, CPU resources, processes and system configurations between different VPS, simulating the experience of "exclusive" use of computing resources for users and applications. .

#The operating environment of this article: Windows 7 system, Dell G3 computer.

VPS, or Virtual Private Server, is a service that divides a server into multiple virtual private servers. The technologies used to implement VPS are divided into container technology and virtual machine technology. In a container or virtual machine, each VPS can be assigned an independent public IP address and independent operating system to achieve isolation of disk space, memory, CPU resources, processes and system configurations between different VPS, simulating " Exclusive” experience using computing resources. VPS can reinstall the operating system, install programs, and restart the server independently just like a standalone server. VPS provides users with the freedom to manage configurations and can be used for enterprise virtualization and IDC resource rental.

A single physical host server can be configured to run multiple virtual private servers, each running its own operating system and applications and with dedicated resources such as RAM, memory, and storage.

How VPS Works

The two common forms of virtualization technology used in VPS are hardware virtualization ization and container virtualization, both technologies are available in commercial and open source options.

Hardware virtualization

Hardware virtualization refers to the emulation of all hardware components in a computer. This includes keyboard, mouse, video card, hard drive, network card, processor and memory. This virtualization provides optimal performance and is sometimes called a Virtual Private Server (VDS).

In addition to running different operating systems such as Windows and Linux on the same server, it allows the installation of almost any Intel-compatible operating system. Examples include VirtualBox, Hyper-V, VMware, Xen and KVM.

Container Virtualization
Containers run on the same operating system as the host machine and use special software to create the illusion that it is a standalone server. It can also shield one VPS from another.

What to consider when choosing a VPS

1. Hardware specifications of the host server (CPU, storage, RAM, bandwidth, etc.)

2. Maximum number of VPS instances on the host server

3. Virtualization technology, host server operating system and version

4. Procedures and costs for additional resources

5. Company type, support provided, company experience, reputation, customer retention rate, annual downtime, backup and/or redundancy measures

Benefits of Virtual Private Servers

1. Highly customizable, feature-rich, with dedicated server capabilities

2. Affordable, flexible and easy to expand

3. Enterprises can Full control over the server, including full root access, self-service reboot, IP allocation and re-imaging

5, Wide range of operating systems and seamless switching between different operating systems

6, Dynamic VPS allows real-time upgrade of server resources, while adding memory, bandwidth, storage or processor while the server is still running

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's learning .

The above is the detailed content of What is VPS. For more information, please follow other related articles on the PHP Chinese website!