Python Network Programming

How to do it...

We import dns.reversename of dnspython to do a simple exercise of finding the reverse name of an address from the given address. We use dns.resolver to find the address that an IP address resolves to be.

Listing 11.2 gives the domain information for a given IP address as follows:

#!/usr/bin/env python 
# Python Network Programming Cookbook, Second Edition   -- Chapter - 11 
# This program is optimized for Python 2.7.12 and  Python 3.5.2. 
# It may run on any other version with/without  modifications. 
 
 
import argparse 
import dns.reversename 
import dns.resolver 
 
def main(address): 
    n = dns.reversename.from_address(address) 
    print(n) 
    print(dns.reversename.to_address(n)) 
 
    try: 
        # Pointer records (PTR) maps a network  interface (IP) to the ...