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This article shows you the principle and technology of CDN and how to use it. The content is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

In the IDC industry, we often hear some related terms about CDN, high-defense cdn,cdn acceleration server, cdn node and so on. Let's follow the editor of Hengxun Technology to learn what cdn is and how to use cdn.

First of all, CDN is Content Delivery Network. Through a way of cache redundancy, it adds a new network architecture to the existing network structure, which stores part or all of the content of the website in the nearest network server of the user, so that the user can get the content of the website nearby.

The basic principle of CDN is that all kinds of cache servers are widely used, and these cache servers are distributed to the areas or networks where users are relatively concentrated. When users visit the website, the global load technology is used to direct the user's access to the nearest working cache server, and the cache server directly responds to the user's request.

Second, in today's world, websites must have everything: they must be attractive, fast, flexible, mobile, and even capable of constant change. In addition, it must support frequent sessions, browsers, smartphones, tablets, and other devices that users may use. The website must be able to run in a complex network environment, geographically dispersed, distant and diverse, the site uses more and more objects, the system will change more and more slowly, and users can only visit some of the fastest open and best-performing websites. If your site slows down every second, it may lead to the loss of many visitors, and even some customer users will not come back.

So CDN came into being at this time, they can help users to improve the website browsing performance, but also to improve the fluency of the game, the financial industry and even the banking industry transaction accuracy and liquidity.

Finally, there are generally two ways to use CDN: a mirror server and a cache.

1. Mirror server means that the website itself sets up mirror cache servers in various places, which can handle some dynamic data caching at the same time, but because of the high maintenance costs and bandwidth costs, and even need to add architecture adjustment costs, so general websites will not set up mirror servers.

two。 The cost of caching is much lower and is suitable for caching static content. Generally, IDC service provider Shenzhen Hengxun Technology provides CDN service, which is relatively simple to implement, and the vast majority of companies use the way of renting CDN service.

The above content is the principle, technology and usage of CDN. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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