Starting with the basics, let's play a little with Burp Suite, Community (ie. FREE!) edition. If you've never used Burp Suite or done any web site testing, we will be starting from the beginning. Let's talk about what an intercepting proxy is, how to configure it with your browser, look at all the tools included with Burp Suite and then start using some of them.
You can download the Community Edition here: https://portswigger.net/burp so you can play along!