New and better version has been released. 

Take a look here: 

https://github.com/jimmykane/dns-spoofer


The below is legacy RaeadMe
---------------------------

#--------------------------------------------------
# Roque DNS Server With Dynamic Ip Resolving by Jimmy Kane
#--------------------------------------------------
# Author: Dimitrios Kanellopoulos
# Email: jimmykane9@gmail.com,
# Twitter: http://twitter.com/JimmyKane9
# Google+: http://gplus.to/jimmykane
# License: The GNU General Public License
#------------------------------------------------------------------------------------------------------
#----------
# Based on: http://www.tranquilidadtecnologica.com/2006/04/servidor-fake-dns-en-python.html 
# mirror: http://code.activestate.com/recipes/491264-mini-fake-dns-server/
#-------------------------------------------------------------------------------------------------------
# This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
#----------------------------------------------------------------------------

-This release is based on an older project called mini-fake-dns-server http://www.tranquilidadtecnologica.com/2006/04/servidor-fake-dns-en-python.html 

Description: 
 "You can redirect DNS requests to specific Domain Name with automated Resolving eg: * -> mydomain.dyndns-server.com
   This script will redirect all domain names to mydomain.dyndns-server.com"

Changes:
 -Added DNS resolving from ip to Domain Name for Dynamic IP support
 -Added threading and improved performance

Instructions:
0. Edit Domain_Name and sleeptime variables in dns.py to your needs. Description of the variables is available in dns.py file
1. Run server: python dns.py
3. Exit: ctrl+c