Shulou(Shulou.com)06/03 Report--

Compared with other CDN service providers, the main advantages of CDN include stable and fast, cost-effective, easy to use, efficient and intelligent. More users will ask about the advantage of stability and speed. Generally speaking, CDN is characterized by sharing the pressure on the origin server, avoiding network congestion, accelerating the distribution of website content in different regions and different scenarios, and improving the speed of resource access. The following is to introduce to the majority of users how to use CDN acceleration.

How to use cdn acceleration? In order to realize that after ordinary users join the cache, the user client can directly use the original domain name of the accelerated website without any settings, and reduce the impact on ICP while providing acceleration service for the specified website, and modify the domain name resolution part of the whole access process to achieve transparent acceleration service.

The following is the specific operation process of cdn network implementation:

1. As an ICP, you only need to hand over the right of domain name interpretation to cdn operators, without any modification in other aspects. During operation, ICP modifies its domain name resolution record, which generally points to the address of the CDN network Cache server by cname.

two。 As a cdn operator, you first need to provide public resolution for the domain name of ICP. In order to implement sortlist, you usually point the domain name interpretation result of ICP to a CNAME record.

3. When sorlist is needed, CDN operators can use DNS to point the CNAME to the domain name resolution process and carry out special treatment, so that when the DNS server receives the client request, it can return different IP addresses of the same domain name according to the IP address of the client.

4. Because of the IP address obtained from cname and with hostname information, Cache must know the IP address of the source server after the request arrives at Cache, so an internal DNS server is maintained within the CDN operator to interpret the real IP address of the domain name accessed by the user.

5. When maintaining the internal DNS server, you also need to maintain an authorization server to control which domain names can be cached and which are not, so as to avoid open proxies.

Large websites with high visits in China all use CDN network acceleration technology. although the visit of the website is huge, it will feel very fast no matter where it is. In general, if the server is in Netcom, the access of telecom users is very slow; if the server is in telecom, the access of Netcom users is very slow.

The above is the answer to how to use cdn acceleration.

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