What is the content delivery network?
The network or distribution network for content (CDN) is a group of geographically distributed web servers to provide more efficient content to a large number of users. CDN benefits users and content providers by shifting large downloads from one server to multiple North in different places. In many cases, end users do not notice that they use CDN. Several companies now specialize in offering CDN services, and many large organizations use them to distribute software, videos and other types of content. HTTP has been designed for scenarios in which the web browser downloads content from one web server. This is a problem for large websites or sites that suddenly experience an increase in network traffic. The only HTTPR can handle a limited number of current users, after which the server becomes very slow or completely unreachable. HTTP servers are also vulnerable to distributed Denial-of Service (DDOS) attacks that send large MNInelevant requirements for a web server, which makes it impossible to access the web.
Instead of relying on one HTTP server, a network of multiple servers delivers at different places, each with its own copy of the website content. If any single server is too busy, others are developing to handle further traffic. CDN makes it more difficult to reduce the DDOS attack. In addition, the location of servers at different locations can increase the speed available for end users as the nearest server can be selected. Servers closer to users tend to be faster because the data must travel through fewer points to Internet -sink goals.
Most Internet users will not even notice if the content of content delivery is used. Applications are sent to HTTP North normally and CDN directs the user's web browser to another server based on a number of factors. Some CDN use the doma systemNew name (DNS) to redirect traffic, while others can control operation based on a file type or a dynamic replacement of uniform resource locators (URL) on a website.
Many large corporations turn to a network of content delivery to distribute software or other types of large files. They may choose to create their own CDN or contract with a company that owns a large network and specializes in CDN services. CDNs are particularly suitable for supplying streaming media, as close to the servers to end users results in less data flow, which means smoother playback. Many large network providers build their own content delivery networks or support third parties to place CDN servers in their data centers. These providers hope that they will gain further income from the growing popularity of Internet television and other forms of digital distribution.