Author: Nicholas HusinSlides
Learn the basics of web hacking. Focuses mostly on bypassing client-side validation
Natas is a collection of general and PHP web challenges hosted on OverTheWire. You’ll learn broadly applicable skills that you can (legally) use on websites you use every day to make your life on the wild west of the internet a little better. The challenges are hosted here.
If you get stuck, the slides have some hints. Have fun!