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What is a virtual server?

The English name of virtual server is VPS (virtual private service) host, which is called virtual host for short.

Compared with the real host (physical machine or bare metal server), virtual server refers to the use of special software and hardware technology to divide a complete server host into several hosts. In fact, the real hard disk space is divided into several parts and then leased to different users. Each divided host has an independent domain name and IP address, but shares the CPU, ram, operating system, application software, etc. of the real host.

Virtual server technology is a technology used by Internet servers to save the cost of server hardware. It is mainly used in HTTP, FTP, email and other services. It logically divides one or all of the service contents of a server into multiple service units and externally represents multiple servers, so as to make full use of server hardware resources.

Sometimes a single server cannot meet the use requirements, or even if a single server can meet this requirement, its cost is too high. Therefore, virtual server is used to meet the application requirements.

Multiple virtual servers can be set up on the same physical server through software, and each virtual server can provide all the functions of the server, so the cost of each virtual server is relatively reduced.

When running, the user remotely operates the part that belongs to him, and this part is a "complete" server for any user. The function is exactly the same as that of a real independent host. Users generally apply for a virtual server on the spatial domain name network. Users only need to maintain their own information remotely, without maintaining the hardware, operating system and communication lines.

That's what virtual server is? Your answer

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