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This article mainly explains the "brief introduction of cloud host, vps and virtual host". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the brief introduction of cloud host, vps and virtual host".

1. CVM

CVM is a new generation of host leasing service, which integrates CPU, storage and network broadband services through a unified platform for on-demand access. It effectively solves the shortcomings such as high rental price of traditional host, uneven service and so on.

Although CVM has been on the rise for a long time, there are still many VPS products sold in the market under the banner of CVM. An obvious difference is that CVM can get real root permission, and users can reinstall and upgrade the operating system, while VPS users cannot reinstall and upgrade the operating system without root permission. At the same time, CVM also has some obvious advantages: zero maintenance, non-downtime, easy capacity expansion, multi-node.

2. VPS host

The full name of VPS host is Virtual Private Server (Virtual Private Server). VPS works by using virtual host server software to create multiple small servers that are isolated from each other on a physical server. These small servers, known as VPS, have their own operating system, which runs and manages exactly the same as stand-alone servers.

VPS hosts can ensure that all resources are exclusive to users, so that the price of virtual hosts for users can enjoy the quality of independent hosts. Divide a server into multiple virtual servers to provide high-quality service. Each VPS can be assigned an independent public network IP address, independent operating system, independent super-large space, independent memory, independent CPU resources, independent execution programs, and so on. In addition to assigning multiple virtual hosts and wireless enterprise mailboxes, users also have independent server functions, which can install their own programs and start the server separately.

Of course, VPS also has some shortcomings, such as a boring server, different VPS influence each other, the performance is limited by the configuration of a single server, and there is no root authority or super administrator operating system permission.

3. Virtual host

Virtual host divides a real physical server host into multiple logical units, each unit has no physical entity, but each logical unit can work on the network like a real physical host, each virtual host has an independent domain name and perfect Internet server functions, and each user has its own part of system data such as IP address, storage space, memory, CPU and so on.

Virtual hosts are completely independent, even if they run different server programs opened by multiple users on the same hardware and the same operating system, they can not interfere with each other. In the outside world, each virtual host and a separate server turn out to be exactly the same. At the same time, the disadvantage of the virtual host is also obvious, if this physical host fails, then all the above websites are inaccessible.

Thank you for your reading. The above is the content of "brief introduction to CVM, vps and virtual host". After the study of this article, I believe you have a deeper understanding of the brief introduction of CVM, vps and virtual host, and the specific usage needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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