Python to script to perform reverse DNS lookup asynchronously
TODO - #Script crashing on lower powered CPU's. #Still in development
The script works as follows -
1> User specifies country code to scan that country's IPv4 range
2> Script takes input from ip_location_db.csv file. This file contains ipv4 range allocations with their respective country codes
3> Then the script converts the ip ranges to list of ip addresses
4> These ip addresses are fed to the reverse_dns_lookup function
5> Reverse DNS lookup results are stored in a CSV file