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This article mainly explains "what is the difference between virtual host, cloud host and vps". The content 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 "what is the difference between virtual host, cloud host and vps".

Many people are confused about the difference between virtual hosting, cloud hosting and vps. The following editor will introduce it to you.

Shared hosts are also called virtual hosts. Since the birth of the Internet, most webmasters have learned to build stations from "shared hosts" (shared hosting). The so-called "shared host" means that there are many websites on a server, and everyone shares the hardware and bandwidth of the server. If it fails, none of the above websites will be accessible.

VPS host (Virtual Private Server virtual dedicated server), high-quality service that divides a server into multiple virtual private servers. 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 independent system configuration, etc. In addition to assigning multiple virtual hosts and unlimited enterprise mailboxes, users also have independent server functions, which can install their own programs and restart the server separately.

"Cloud hosting" can be seen as a new generation of shared hosts. First, the host company makes its hardware and network lines into a "cloud", and then provides some network interface API to the "cloud" for customers to use. At this point, each customer no longer shares a particular server, but all the servers in the cloud.

The difference among virtual host, VPS and CVM:

1) provisioning and deployment time

Virtual hosts-days to weeks

VPS--- instant, no need to install the operating system

CVM-instantly, can be completed in a few minutes, can be deployed with one click, or can install the operating system independently

(2) Safety and reliability

Virtual hosts-generally: high failure rate of rented white-card servers, basically no ARP, Trojan and DDOS prevention capabilities, basic no standby and data backup services

Poor VPS---: program defects, ARP spoofing, viruses and resource congestion installed on other VPS on the same physical server will seriously affect themselves; basically no ARP, Trojan and DDOS prevention capabilities

CVM-High: built-in ARP defense to enhance DDOS anti-attack capability on a large scale; share the performance and reliability of brand enterprise-class servers and hardware virtualization; built-in HA; provides a variety of fast recovery measures such as standby, snapshot, data backup, etc.

(3) performance and guarantee

Virtual hosting-- good and guaranteed

Poor VPS---: average performance, only suitable for small-scale concurrent access; unguaranteed performance, vulnerable to squeeze by other VPS on the same physical server

CVM-- good and guaranteed: same as physical server

(4) elasticity and expansibility

Virtual hosts-expansion requires renting new servers and paying for existing leased resources

VPS--- expands rapidly and is subject to the configuration of a single server.

CVM-instant supply, on-demand expansion, no need to pay for the original leased resources

(5) cost of ownership

Virtual host-high quarterly annual payment cost, need to pay a deposit for service providers to transfer CapEx expenses; need to maintain their own leased servers, resulting in higher Opex

The rental price of VPS with low configuration of VPS--- is the lowest, but the low security, reliability and unguaranteed performance lead to unguaranteed quality of service, difficult to control and high operating cost.

CVM-the lowest comprehensive cost: no deposit per month, pay on demand, basic zero maintenance, and share the cost advantages of scale, green energy saving and best IT practices

(6) ease of use and manageability

Virtual host-requires a remote control card and is only possible by renting a brand machine, so it is impossible to achieve centralized and unified management

VPS--- provides a single stand-alone management interface without root or Super Admin operating system privileges, and management flexibility is limited by the management interface.

CVMs-built-in KVM, customers can centrally and uniformly manage distributed CVMs through self-service system, and have full root or Super Admin operating system permissions

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