How to do DNS SPOOF (tutorial)

First What is the DNS ? (

The Domain Name System (DNS) is a hierarchical naming system for computers, services, or any resource connected to the internet or a private network. It associates various information with domain names assigned to each of the participants. For example, translates to208.77.188.166.

What does poisoning the DNS allow us to do ?

It allows us to redirect the traffic to another website.
First This is the structure of the network :

1 , 2 and 3 are computers
1 is the computer being the gateway (could be a router) (
2 is the target computer (
3 is the attacker using cain
Note : IPs are just used for this tutorial and chosen randomly.
Our work is on computer number 3 :
1-After you install cain , open it and go to the sniffer tab
2-Click on configure and choose your adapter

3-Enable the sniffer (click on the second icon in the toolbar next to the open icon)
4-Right click in the empty area and choose scan MAC addresses. We get the results above.
5-Click on the APR Tab

6-Click on the + sign in the toolbar to add a new ARP poison routing

7-choose the gateway which is , in the next list you’ll get the IP of the computer 2 which is and click ok

8-now click on the APR-DNS tab

9-click on the + sign

10-enter the web address that you want to spoof , (in this case when the user goes to facebook he’ll be redirected to myspace) click on resolve type the web address that you want to redirect the user to it, and click ok, and you’ll get the IP of the web address, then click ok

you'll get something like this:

11-now to make this work we have to enable APR poisoning , click on the icon next to the sniffer icon, and everything should work as we expect.

Now the computer 2 will get the routes poisoned and when the user requests he will be redirected to .
Imagine what you can do with this technique.

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