August 2017
Beginner
450 pages
13h 21m
English
book
Python Network Programming Cookbook - Second Edition
by Pradeeban Kathiravelu, Dr. M. O. Faruque Sarker
Content preview from Python Network Programming Cookbook - Second Edition
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How it works...
When we input an invalid IP address, the resolving fails with the message, The DNS query name does not exist. It reports the reverse domain name ({reverse-IP}.in-addr.arpa) in the message as it could not resolve it to a valid address. If a valid address is found by dns.resolver.query(), it is returned. Pointer records (PTR) is used in resolving the IP address to its domain, as it maps a network interface (IP) to the host name.
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