So far, we have read four chapters that are related, from the data link layer to the transport layer. Now, we move on to application-layer penetration testing. In this chapter, we will go through the following topics:
- The concept of foot printing a web server
- Introducing information gathering
- HTTP header checking
- Information gathering of a website from smartwhois.com by the BeautifulSoup parser
- Banner grabbing of a website
- Hardening of a web server