[python]Resolving a group of fqdns and store the ip addresses

Reference:http://www.pythonforbeginners.com/python/dns-lookup-python
Looking at the reference above is much easier than reading the actual socket documentation. My purpose is to find a python way to resolve a group of hostnames and return them as ip addresses.

Here’s the same code.

import logging,socket

logging.basicConfig(filename="dns.log",level=logging.INFO)
hostnames = []
answers = []

hostnames = input("Enter hostnames with comma: ").split(",")
for hostname in hostnames:
    try:
        answer = socket.gethostbyname(hostname)
        answers.append(answer)
        logging.info("Getting resolution answers from DNS for hostname {}".format(hostname))
    except Exception as e:
        logging.error(e)
        exit(1)

for i in answers:
    print(i)
    logging.info("Listing ip addresses...")

Here’s a test:

Enter hostnames with comma: www.google.com,www.hotmail.com,pool.ntp.org,cyruslab.net
74.125.24.105
204.79.197.212
139.99.107.37
192.0.78.24