In this chapter, we learned about client-side validation as well as how to bypass client-side validation. We also learned in which situations client-side validation is a good choice. We have gone through how to use Python to fill a form and send the parameter where the GET method has been used. As a penetration tester, you should know how parameter tampering affects a business. Four types of DoS attacks have been presented in this chapter. A single IP attack falls into the category of a DoS attack, and a Multiple IP attack falls into the category of a DDoS attack. This section is helpful not only for a pentester but also for researchers. Taking advantage of Python DDoS-detection scripts, you can modify the code and create larger code, which can trigger actions to control or mitigate the DDoS attack on the server.

In the next chapter, you will learn SQL injection and Cross-Site Scripting attacks (XSS). You will learn how to take advantages of Python to carry out SQL injection tests. You'll also learn how to automate an XSS attack by using Python scripts.