If a computer configuration in sichuan for Google's DNS 8.8.8.8, parsing a domain name x.com, its intelligent DNS server IP to sichuan for 1.1.1.1, this time on dns8.8.8.8 cache 1.1.1.1, when another person from Beijing, hope to get the IP is 2.2.2.2, but also the configuration dns8.8.8.8, at this time due to the cache also got 1.1.1.1, so how to realize intelligent DNS? If not achieve the intelligent DNS, what's the use of CDN?

CodePudding user response:

If you want to different areas of people get a different IP, you need to use the intelligent parsing, and in intelligent resolution scene, the configuration is correct, the second from Beijing to visit the one who is, won't get 1.1.1.1, but directly by 2.2.2.2
CDN's role is to put your static resources, or one-way resources for caching, the
source service - terminal customer
The structure of become
source service - CDN - terminal customer
The structure of
From a service provider, the CDN and intelligent DNS do not quite same, the use of the intelligent DNS is that you're much to deploy the service, and for people in different area near by you provide different specific entrance; And CDN just need you to provide source services, more access to the service is provided by the node to CDN in different regions, the demand of intelligent routing, flow pressure, are digested in the CDN network, without your intervention,