# Script Name : nslookup_check.py

# Author : Craig Richards

# Created : 5th January 2012

# Last Modified :

# Version : 1.0

# Modifications :

# Description : This very simple script opens the file server_list.txt and the does an nslookup for each one to check the DNS entry

import subprocess # Import the subprocess module

for server in open('server_list.txt'): # Open the file and read each line

subprocess.Popen(('nslookup '+server)) # Run the nslookup command for each server in the list