This document provides instructions for accessing blocked websites like Facebook in college networks by using different methods to bypass firewalls and proxies. It explains how to use secure connections, proxy servers, the Tor network and VPNs to anonymously access blocked sites. It also describes setting up an SSH tunnel using PuTTY to create an encrypted tunnel for forwarding requests and browsing privately. Screenshots demonstrate successfully opening Facebook after configuring these techniques on the author's college network.

1. Hello folks…
This document is for all the people who have wifi(wireless fidelity) in their
colleges.
(You can read it even if you don’t have)
I kept every thing including basics and images…
(Every image is a screenshot from my system only.. Not copied from anywhere)
I have successfully opened blocked sites in my college using all the methods I
mentioned In this document..
I specified “FACEBOOK” as an example of blocked site in the entire document..
If I miss any thing try googling or make a comment..
Queries and comments at cnuhackz@gmail.com
or our ethical hacking group on facebook
regards
-cnu

2. The following figure shows the current position in my
college if we open facebook directly.
It is being blocked by the network administrator using
firewall/proxy.

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4. COLLEGE HACKS
ACCESSING BLOCKED SITES

5. The first and foremost attempt is to open our site using
secure connection i.e https instead of http.
It helps us if our site is blocked based on URL.
i.e they block http://www.facebook.com, but still we can
open it using https://www.facebook.com
If it doesn’t work then go for the following methods…

6. PROXY
Introduction
Importance of proxy
TOR and VIDALIA
What is TOR and VIDALIA
Anonymous proxy V/S TOR proxy
Working of TOR
VPN
Introduction
Why we Need VPN?
List of TOP VPNs
SSH Tunneling
Introduction
Implementation

7. What is a proxy?
A proxy is an address ( IP address ) of a Server (proxy
server) that is placed between your computer and the
Internet.
It connects to the server on behalf of the client.
i.e the client will not directly connect to the server.

8. Without proxy
With proxy

9. How To Surf The Web Anonymously With Proxies
Internet explorer
Tools menu
Internet Options
connections tab
LAN settings
Use proxy
Hit ok
Manual configuration:
Get a proxy ip address by googling. And follow the steps below.
You have to place your IP address and port number there in
“use proxy”.(there are number of proxies on internet).
I kept it in the picture below…

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11. If you feel hard to do all the above stuff..
There are so many sites to help you..
Just open any one of them.. Just enter your URL inside it.
That’s it you will be at your facebook home page…
Examples are www.opengoing.com
www.hidemyass.com
I have shown you an example with www.opengoing.com
Observe the URLs in the following two figures.

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15. What is Tor ?
Tor-proxy is a free proxy-server service that Internet users can
use to hide their IP address while surfing the Web.
What is Vidalia ?
Vidalia is a GUI (graphical user interface) implementation for
Tor, It allows the user to start, stop, and view the status of Tor;
monitor bandwidth usage; view, filter, and search log
messages; and configure some aspects of Tor

16. Anonymous Proxy V/S Tor-proxy

17. Working of TOR

18. Lets consider it has taken path shown by green arrows. Now
* Node 1 knows only actual origin(client) but not actual
destination(web server).
*Node 5 neither knows actual origin nor actual destination.
*Node 9 knows actual destination but not actual origin.
Thus no one exactly knows which client is accessing which
web server. So it is highly anonymous.
So simply download TOR bundle and run “start Tor
browser”
You will be able to access blocked sites.
Download:http://www.ziddu.com/download/16392968/TorBrowser.rar.html

20. what is VPN?
it’s a private network which lets users to connect to other users
or remote sites using a public network
usually internet and uses “virtual” connections.
Why We Need VPN?
Full anonymity by hiding your real IP address.
Bypass geographical blocks from certain websites.
Unlike a proxy, you get secured connection for all programs
you are using.
Bypass ISP Blocking for VOIP Applications like Skype.
Quality Network ensures your VPN service will be fast
wherever you are in the world

21. Some Free VPN
1. UltraVPN
2. Logmein Hamachi
3. Packetix
4. Open VPN
5. Hotspot Shield
Download and install them on your machine…

22. SSH TUNNELING

23. What is SSH ?
Secure Shell or SSH is a network protocol that allows data to be
exchanged using a secure channel between two networked devices.
What is SSH tunneling?
A Secure Shell (SSH) tunnel consists of an encrypted tunnel created
through a SSH protocol connection. Users may set up SSH tunnels to
transfer unencrypted traffic over a network through an encrypted
channel.
Things you’ll need for performing SSH Tunneling:
1. First thing you need is to find a SSH server for SSH access.
2. Putty which is an open source SSH client .

25. http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
First you need to register in any website that gives you a shell account
Examples are www.shellmix.com
www.cjb.net
Now download putty from the following link.. It acts as a client to our
SSH server.

26. Configuring an SSH tunnel using PuTTY for Windows
Run PuTTY.
On the window that appears (shown in Figure ) select the
SSH protocol and enter the address of your NetManager.
(IP address or the url you are given from the website you
have registered)

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28. Click on the 'Tunnels' item under 'Connection/SSH' in the
category section of this window.
Enter a port number to listen on your local machine (source
port - see Figure) which will forward the requests on to your
NetManager. And then click add

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30. Click on 'Open'. This will open a Window and ask you to
log on to your server.
Enter your username and password you are given at the time of
registration.
Once you have logged on, the tunnelled connection will be live.
Before this configure your browser.
open your browser and change few settings as shown below.
I recommend Mozilla Firefox.
1) Go to the "Tools" menu and then click "Options“
2) Now click the "Advanced" button, then click "Network" tab,
and then click "Settings"

31. Open Firefox and go to the "Tools" menu and then click "Options”
cnu

32. Now enter "localhost" as the Socks Host and your port number,
as "8888" into the Port field as shown.
cnu

33. Now we are enjoying in our college by bypassing the
firewall/proxy.
See the pic below…
If you observe the following figure at right bottom corner..
You will see I have wifi access…

34. cnu

36. Enjoy hacking
Thank you..
Don’t forget to comment