Long description

The figure shows two scenarios. Scenario 1 shows a computer running a program or script that is repeatedly requesting for index dot p h p page from the server using the GET method. This is Denial of service. An arrow from the computer labeled GET index dot p h p points to the server.

Scenario 2 shows four computers or a bot army running the same program or script open parenthesis GET index dot p hp close parenthesis in loop that is bombarding the server with requests. These users are probably unaware that Service is denied. This is Distributed D O S. Four arrows from the four computers points to the server and are labeled as follows: GET index dot p h p.