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Dos attack using kali Linux 2.0 with LOIC

Disclaimer :This article is for educational purpose only. Before performing Denial of service attack. There are couple of things i would like you to know.It is completely illegal to perform Dos attack on website you don't own.

Perform dos attack only if you have owner's permission or use your own website.If you do you do at your own risk.I will not be responsible for this.

What is Dos Attack

Dos stands for denial of service. Dos attack shuts down Webservers/systems and completely makes them inaccessible to users.

Dos attack floods target network with excess requests.With excess http requests dos slows down the speed and eventually force webservers to shut down.

There are quite a few programs to perform Dos attack.But we are going to use loic program to perform our dos attack.


Loic does not come pre-installed in Kali so we have to install manually.

First thing we need to install is monodevelop which is used to compile and run Loic.Loic is written in c#.
Open your terminal adn type the following command.

root@seven:~# apt-get install git-core monodevelop

Now we need make a separate directory where we will store Loic application.

root@seven:~# mkdir loic

Now change your directory to loic.

root@seven:~# cd loic

Now we need to download Loic.Type the following command.

root@seven:~/loic# wget https://raw.github.com/nicolargo/loicinstaller/master/loic.sh

Now we need to make loic.sh file executable.

root@seven:~/loic# chmod 777 loic.sh

Now we need to install loic.sh file

root@seven:~/loic# ./loic.sh install

Now we need to update loic.sh file.

root@seven:~/loic# ./loic.sh update

Now we need to install mono develop gmcs compiler which is used to compile c# applications.

root@seven:~/loic# apt-get install mono-gmcs

We are ready to launch Loic's GUI.

root@seven:~/loic# ./loic.sh run

This is how Loic User interface looks like.This is really simple.Now we need to set our target and also have to make few other changes.

loic inteface

Now we have set our target to perform dos attack.Again dont perfom dos on website if you dont have permission.You will be in serious trouble.I suggest you to create your own blog and perform there.

If ip address appears in your target box then you are good to go.

Url to hack

Lock your target by clicking on lock on

click on lock

Now we need to to set our attack options.Check the box that says append random char

check box

Change attack method to udp and threds to 70

Default is TCP if TCP stops working you can use UDP.

good to go

Now everything is set Just click on the button that says IMMA CHARGIN MAH LAZER. .Enjoy..

over