September 2015
Intermediate to advanced
527 pages
14h 8m
English
Content preview from Cloud Computing Networking
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171dynamiC Host serviCe and name serviCe
Once the client computer gets the IP address for a given name, it caches the IP
address with the given name. Next time, to search for the IP address of the same
host, the client computer will check the cache rst. If there is a match, it gets the cor-
responding IP address from the cache in no time. In such a case, the client computer
does not need to send a request to the local DNS server.
5.3.4 DNS Zones
As the entire DNS database is distributed to millions of DNS servers, each DNS
server only hosts a small portion of the entire DNS namespace. Such a portion man-
aged by a DNS server is called a DNS zone. ...
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