I was contacted by someone on the list on how to install aircrack. I ended up writing a whole lot, so I figure if anyone else is wondering, here it is : There are two options you can take as I see it : 1. MacPorts (formerly DarwinPorts) 2. "Build" from "source" This guide assumes the following : * Downloads go to your desktop * You have installed X11 & XCode tools and all that jazz from your OSX 10.4Install disc * We will call your user name "uname" for this guide * The $ symbol denotes a new line input in terminal and should not actually be entered, just whatever follows it OPTION 1 : MacPorts Download macports from : http://svn.macports.org/repository/macports/downloads/MacPorts-1.5.0/MacPorts-1.5.0-10.4.dmg Mount and install the dmg file. (note that during the actual physical install to disc, macports seems to hang for a while, this is because it is updating all its sources and such, just let it go) You now have to add /opt/local to your $PATH. I usually do this thru vi, I will do my best to explain how to do this thru terminal : $ sudo vi /etc/profile Arrow down two spaces to the "PATH" line and hit Shift+A this will bring you to the end (if /opt/local is already there, refer to the last line in this paragraph), arrow over left once, and add :/opt/local This should all be within the ending quote mark and should look something like this : PATH="/bin:/sbin:/usr/bin:/usr/sbin:/opt/local" now hit Esc then Shift+; then wq! then enter Close and open a new terminal window and type the following : sudo port -v selfupdate sudo port -vc install aircrack-ng After this is done doing the damn thang, you now have aircrack-ng installed. $ aircrack-ng in terminal to get a list of commands OPTION 2 : "Source" Download aircrack : http://download.aircrack-ng.org/aircrack-ng-0.9.1.tar.gz Un-tar/gzip it by double clicking on the file Open the folder and rename the Makefile to Makefile.old Rename the Makefile.osx to Makefile In terminal : $ cd /Users/uname/Desktop/aircrack-ng-0.9.1 $ make $ sudo make install You now have to add /usr/local/bin to your $PATH. I usually do this thru vi, I will do my best to explain how to do this thru terminal : $ sudo vi /etc/profile Arrow down two spaces to the "PATH" line and hit Shift+A this will bring you to the end (if /opt/local is already there, refer to the last line in this paragraph), arrow over left once, and add :/usr/local/bin This should all be within the ending quote mark and look something like this : PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin" now hit Esc then Shift+; then wq! then enter After this is done doing the damn thang, you now have aircrack-ng installed. $ aircrack-ng in terminal to get a list of commands You can delete the old aircrack-ng tar files and folder off your desktop