Forwarding a local port to a remote host

Sometimes, you may need to create a local port forwarder that will redirect all traffic from a local port to a particular remote host. This might be useful to enable proxy users to browse a certain site while preventing them from browsing some others.

How to do it...

Let us create a local port forwarding script that will redirect all traffic received at port 8800 to the Google home page (http://www.google.com). We can pass the local and remote host as well as port number to this script. For the sake of simplicity, let's only specify the local port number as we are aware that the web server runs on port 80.

Listing 3.1 shows a port forwarding example, as follows:

#!/usr/bin/env python 
# Python Network Programming Cookbook, Second Edition -- Chapter - 3 
# This program is optimized for Python 2.7.12 and Python 3.5.2. 
# It may run on any other version with/without modifications. 
 
 
import argparse 
 
LOCAL_SERVER_HOST = 'localhost' 
REMOTE_SERVER_HOST...