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Chapter 1. Nmap Fundamentals
Note
This chapter shows you how to do some things that in many situations might be illegal, unethical, a violation of the terms of service, or just not a good idea. It is provided here to give you information that may be of use to protect yourself against threats and make your own system more secure. Before following these instructions, be sure you are on the right side of the legal and ethical line... use your powers for good!
In this chapter we will cover:
- Downloading Nmap from the official source code repository
- Compiling Nmap from source code
- Listing open ports on a remote host
- Fingerprinting services of a remote host
- Finding live hosts in your network
- Scanning using specific port ranges
- Running NSE scripts
- Scanning using a specified network interface
- Comparing scan results with Ndiff
- Managing multiple scanning profiles with Zenmap
- Detecting NAT with Nping
- Monitoring servers remotely with Nmap and Ndiff