CDN is an intelligent virtual network built on the existing network. It relies on edge servers deployed in various places and uses the load balancing, content distribution, scheduling and other functional modules of the central platform to enable users to obtain what they need nearby. content to improve user access response speed.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What does CDN mean
CDN is an intelligent virtual network built on the existing network. It relies on edge servers deployed in various places and passes the load of the central platform. Functional modules such as balancing, content distribution, and scheduling enable users to obtain the content they need nearby and improve user access response speed.
Introduction to CDN
CDN (Content Delivery Network) refers to the content distribution network, also known as the content delivery network. This concept It was started in 1996 and was proposed by a research team from the Massachusetts Institute of Technology in the United States to improve the service quality of the Internet. In order to publish rich broadband media content on traditional IP networks, they proposed to establish a content distribution platform based on the existing Internet to specifically provide services for websites. In 1999, they established a dedicated CDN service company to provide professional services to Yahoo. Because CDN is a network overlay optimized to speed up network access, it is vividly called a "network accelerator".
The birth of the CDN network has greatly improved the service quality of the Internet. Therefore, traditional large-scale network operators have begun to build their own CDN networks, such as AT&T, Deutsche Telekom, China Telecom, etc. As market demand continues to increase, pure CDN network operators have even emerged. Akamai in the United States is the largest one, with more than 1,000 nodes distributed around the world. my country's first pure CDN network service company is Beijing Lanxun Company, which has established a specialized CDN service network, ChinaCache, since 2000. At present, the CDN network has exceeded 50 nodes, covering China's six major backbone networks - China Telecom, China Netcom, China Mobile, China Unicom, China Railway Network and China Education Network. The bandwidth resource reserve exceeds 35G and the number of customers served has reached more than 300 .
CDN recommendation
Huawei Cloud CDN: suitable for website static content, file downloads, and audio and video on demand.
Alibaba Cloud CDN: millisecond-level response, embodying low-cost, high-performance and intelligent scheduling system, and can also customize configuration items by itself.
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