It seems, aircrack-ng was removed from Ubuntu’s repositories. Here is how to install it without any source compilation:
- download package:
wget http://launchpadlibrarian.net/71861454/aircrack-ng_1.1-1.1build1_amd64.deb
or
wget http://launchpadlibrarian.net/71861174/aircrack-ng_1.1-1.1build1_i386.deb - install package (you will receive error messages):
sudo dpkg -i aircrack-ng_1.1-1.1build1_*.deb - Install missing dependencies:
sudo apt-get install -f