enumerate_subdomains.py

#!/usr/bin/env python

import sys 
import socket

def load_document(filename):
    with open(filename, 'rb') as f:
        return f.readlines()


def get_ip(subdomain, domainname):
    try:
        ip = socket.gethostbyname('{}.{}'.format(subdomain, domainname))
        print u'{}.{}: {}'.format(subdomain, domainname, ip) 
    except socket.gaierror as e:
        pass


def main():
    lines = load_document('subdomains_wordlist.txt')
    domainname = sys.argv[1]

    for i in lines:
        get_ip(i.strip(), domainname)


if __name__ == '__main__':
    main()