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Deeply convinced plan X - network protocol basic DNS
2022-07-05 21:39:00 【51CTO】
One 、 Protocol is introduced
- The domain name system is a Distributed structure , The database on each server only saves Some domain names and IP Correspondence of .
Two 、DNS A query
3、 ... and 、DNS Domain name resolution process
recursive + iteration
Between the client and the local domain name server recursive query , Local domain name servers and other domain name servers ( root 、 top 、 authority ) Between Iterative query .
Four 、DNS Record type
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