This chapter is about exploring various tools and techniques for enumerating the targets in scope and performing a vulnerability assessment on them. 

The reader will learn how to enumerate target systems using various tools and techniques discussed in this chapter and will learn how to assess vulnerabilities using specialized tools such as OpenVAS.

We will cover the following topics in this chapter:

• What is enumeration
• Enumerating services
• Using Nmap scripts
• Vulnerability assessments using OpenVAS