DDOS ATTACK

In computing, a denial-of-service attack (DoS attack) is a cyber-attack where the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.

         

Denial of service is typically accomplished by flooding the targeted machine or resource with superfluous requests in an attempt to overload systems and prevent some or all legitimate requests from being fulfilled.

An important term which you come across while searching for ddos is 'BOTNET'

'BOTNET' simply is a group of computer's which are a maliciously affected by a virus send from the hacker , once infected these computer's can be operated remotely.
These computer's send requests all at once to the targeted server.

illustration of a DDos attack

Obviously a bandwidth limit will be reached and with too many requests the server will be forced to shutdown.

METHODS OF DDOSING A WEBSITE

 There are a tons of tools which are available for free over the Internet the best ones are listed below.

(You need to run all the tool's mentioned below at the same time to achieve better result's)

LOIC ( Low orbit ion cannon )
 

          (A low orbit ion cannon window)

First type in the address of the website you intend to destroy

For example type in http://www.google.com
Then select TCP
Port number 90
Threads 50
Time out 1000
Then hit 'CHARGE MY LASER'

you are done wait till some numbers appear in the requested column.

Download loic from this link::
https://sourceforge.net/projects/loic/files/latest/download

*You may get message about malware , just ignore it.

XOIC

XOIC is another ddos tool much similar to LOIC but it is more powerful than LOIC.
XOIC uses the same methods as LOIC.

                          (A XOIC window)

Once you get this window , type in the ip address 
To find the ip address follow the method

Type cmd in start window
Open cmd
Type 'ping' space 'url'
For example:: ping www.google.com

The underlined number is the ip address
In this case 216.58.196.68

Now go to XOIC WINDOW
Type in the ip address in the ip column
Select TCP
PORT 90
Click on MAKE DDOS

You're done and keep it running for a long period of time.

The download link for XOIC follows::
http://sourceforge.net/projects/xoic/

THE ANNONYMOUS DOSER

This is a free tool from the ANNONYMOUS and it is simple you need to just type in the ip address of the targeted server.

             (An annonymous doser window)

Keep the window running till some red codes begin to start , with message in it as 'requested time out' now the server is down.

                          We do not forget.
We do not forgive.                     We are legion.

                                 Expect us

                             _Annonym v _