DNS from right to left
DNS address:
1 client sends a query request, the local computer cache query, if not found, the request will be sent to the dns server
2 first sent to the local dns server, and now look within their own area, if found, perform queries based on this record, if not found, sent to the root domain name dns server will request this.
3 root name server to resolve the domain name part of the client request, the address of the next stage which server contains dns dns server address back to the client
4 dns client to access the server then a dns server based on the information returned
5 recursive method such a level close to the target query, and finally get the appropriate information in the server ip above the targeted domain name
The results of the local dns server 6 client will query returns to our clients
7 ip client based on information obtained access to the target host, complete the resolution process
Js browser engine:
V8