Prevention of DDOS attack,

prevent ddos attack, simulate ddos attack, need an environment setup, what service is going to provide ? , it might be website or application request, and no of request, server will crash, server setup needed, we need to attack the server with multiple clients, once ddos attack coding are ready, we need to proceed the attack in the server, server will get request and service will get crash what counter measures to avoid ddos attack ? how im going to prevent the attack, ddos attack comes, handle the request , node management PROJECT IS TO CREATE A SERVER CLIENT ENVIRONMENT WHERE SERVER PROVIDES ACCESS TO SIMPLE WEBSERVICE OR ANYTHING IT CAN BE , THEN USING ONE OF THE CLIENT CONNECTED TO THAT NETWORK INVOKE THE DDOS ATTACK AND SHUTDOWN THE SERVICE PROVIDED BY SERVER, THEN USING ANY TRAFFIC MONITORING SYSTEM STOP THE DDOS ATTACK AND RECOVER THER SERVER AND RESUME THE SERVICE. i need a draft about the concept of the project first, as in the audio, thank you :)