--[ Kali Sana Virtualbox & MSF pro ]

To install vbox you need to install the following :
apt-get install linux-headers-amd64
apt-get install build-essential dkms && apt-get remove --purge virtualbox-dkms

->reboot

--[ Links for study ]

1. CEH Tools :
CEH v7 Instructor Slides are 11 PDF Files for you to learn Complete Ethical Hacking or, refer it side by side when learning it from Cybrary. Each file has more than 100 Slides and they also include link to specific tools and softwares for you to use. Size : 170 MB
This is the Disk version of CEH v8 Toolkit. You can find all the tools here.
2. Pentesting OS :
2.1. Kali Linux
Kali Linux, The most powerfull and advanced Pentesting System. Most of you might be familar with else, just visit the link above 
Parrot Security OS is one of the known Pentesting OS available. Little has been known about this OS ( to me ) so i’d like your review on this 
Cyborg Hawk Linux runs on Ubuntu ( unlike Kali which run on Debain ) and has more features and tools and a sexy little OS. Give it a try !

--[ Vulnerable apps ]


Vulnerable ApplicationPlatform
1SPI Dynamics (live)ASP
2Cenzic (live)PHP
3Watchfire (live)ASPX
4Acunetix 1 (live)PHP
5Acunetix 2 (live)ASP
6Acunetix 3 (live)ASP.Net

--[ Python resources ]

Python is an easy to learn language many beginners to coding choose as their first programming language and it is not limited to web development, as you can build games and applications for academical research with it. If you are new to programming or simply interested in learning Python, here are some resources you can use.

Collection of Python Tutorials.