How to Execute Denial of Service Attacks on Wifi Networks

A Quick Quide To Hacking WiFi DoS attack

We will be use the Aircrack-ng suite of tools to execute a denial of service attack i.e. denying users wifi access.

Am doing this on Kali Linux, but it should also be applicable to any other GNU/Linux distro such as Parrot SEC OS. 

My wireless adapter in managed mode has the name: wlan0 and in monitor mode has the name wlan0mon. You can check for this info by running:

How To Hack Wifi Networks To Get Passwords

WPA/WPA2 Attack Using Aircrack, with data capture

In this attack, we will capture data wirelessly when someone logs into the router and use a wordlist to throw the data captured until the password is found.
 
We beginning our operation by setting the adapter into monitor mode:
        airmon-ng start wlan0

If you wish to see any Routers or APs and devices, execute the command:
        airodump-ng --uptime --manufacturer -a wlan0mon 
where:  

• uptime shows how long the devices have been on.
• manufacturer tells you the manufacturer of displayed device.
• -a will ignore any "not associated" clients e.g. ones using mobile data or having no password to the routers but are attempting to connect. If you wish to see such devices/clients just omit the -a.

Beginning Wireless Penetration Testing

When beginning wifi pentesting, to prevent the pentest from getting into trouble with existing utilities such as network-manager and wpa_supplicant, check and kill all processes using the command:
        airmon-ng check kill

You can also stop their services and their processes manually e.g. using the command: 
service network-manager stop for network-manager and the kill <pid> command for wpa_supplicant.
i.e. search for their process by executing the command:
        ps aux | grep wpa_supplicant
        ps aux | grep NetworkManager