New Training: Use Nmap for Information Gathering
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New Training: Use Nmap for Information Gathering

In this 6-video skill, CBT Nuggets trainer Bob Salmans teaches you how to use NMAP to identify hosts on a network and the services they’re running. Watch this new CompTIA,Cyber Security training.

Watch the full course: CompTIA PenTest+

This training includes:

  • 6 videos
  • 34 minutes of training

You’ll learn these topics in this skill:

  • Using Basic NMAP Commands
  • Exploring PING Scans with NMAP
  • Scanning TCP and UDP with NMAP
  • Identifying Host Attributes with NMAP
  • Using NMAP Scripts
  • Bypassing Firewalls with NMAP

What Can NMAP Do for You?

Network Mapper, or "NMAP" for short, is a powerful open-source tool that will allow you to scan local or remote networks to develop a deep understanding of what's actually happening. Some of the most critical features include:

  • Nping: A tool to generate packets and analyze responses.
  • Zenmap: An advanced graphical user interface (GUI) to review and explore results.
  • Ndiff: A utility that allows you to compare different scan results.
  • Ncat: A tool that facilitates flexible data transfer, redirection, and has debugging features.

Although you can get nearly as advanced with NMAP as you can imagine, there are a few dozen basic commands that form the foundation of network mapping. These fall into several major categories, such as:

  • Target selection: Scanning single IPs, a range of IPs, or a host.
  • Port selection: Scanning single ports, a defined range, or all ports on the network.
  • Using scans with various tools: These include TCP connect and TCP SYN scan.
  • Viewing and interpreting results: You can easily export results in various file formats and save the data for other uses.
  • Leveraging scripts: NMAP will allow you to scan using specific unique scripts, default scripts, and update the script database with your preferences as needed.
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