slides on using gdb-peda available here:
choose your poison (keynote or pdf):
https://s3-ap-southeast-2.amazonaws.com/9447/poppinShellz.key
https://s3-ap-southeast-2.amazonaws.com/9447/poppinShellz.pdf
Kali linux vm is available here
https://s3-ap-southeast-2.amazonaws.com/9447/Kali-Linux-2.0.0-vbox-amd64.ova
You'll want to install some stuff so that you can run 32 bit binaries on the 64 bit machine
have a look here http://superuser.com/questions/1031353/kali-2-0-run-32bit-program-on-64bit-os (see comments)
and here
http://askubuntu.com/questions/454253/how-to-run-32-bit-app-in-ubuntu-64-bit
https://s3-ap-southeast-2.amazonaws.com/9447/wargames/binaries.zip
https://s3-ap-southeast-2.amazonaws.com/9447/wargames/wargame/COMP9447_Wargame-disk1.vmdk
https://s3-ap-southeast-2.amazonaws.com/9447/wargames/wargame/COMP9447+Wargame.ovf
https://s3-ap-southeast-2.amazonaws.com/9447/wargames/wargame/COMP9447+Wargame.mf