April 2019
Beginner to intermediate
288 pages
7h 20m
English
Content preview from Cybersecurity Blue Team Toolkit
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CHAPTER 3Nmap—The Network Mapper
WHAT YOU WILL LEARN IN THIS CHAPTER:
- Ports
- Protocols
- Services
- OS
- ZenMap
One of my favorite nonprofit organizations is the Center for Internet Security (CIS). The mission of CIS is to “identify, develop, validate, promote, and sustain best‐practice solutions for cyber defense and build and lead communities to enable an environment of trust in cyberspace.” CIS is a collection of subject‐matter experts (SMEs) who are able to work together to identify effective security measures for the good of everyone. CIS has an important role in cybersecurity. One of its many contributions is maintaining the most powerful and current cybersecurity best‐practices documentation called the “CIS Controls Version 7.”
The controls are divided into basic, foundational, and organizational actions so that you can protect your organization and safeguard your data from cyberattacks. Attackers all over the world are scanning public‐facing IP addresses, attempting to find weaknesses in a network.
This chapter will focus on the top CIS‐recommended set of actions that all organizations should take. The first is the inventory and control of hardware assets, and the second is the inventory and control of software on those assets. When you are able to track and manage devices and software on your network, you ultimately prevent unauthorized devices and software. You have increased your security posture.
One of the first things you will do to build a security program is implement ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.