November 2022
Beginner
400 pages
15h 6m
English
book
Ethical Hacking: Techniques, Tools, and Countermeasures, 4th Edition
by Michael G. Solomon, Sean-Philip Oriyano
Content preview from Ethical Hacking: Techniques, Tools, and Countermeasures, 4th Edition
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Active Reconnaissance Countermeasures
Active reconnaissance is an effective tool for an ethical hacker or attacker, and organizations should deploy proper countermeasures to limit results to authorized individuals. These countermeasures include the range of techniques utilized by an organization’s IT security group to detect and prevent port scanning from returning useful information. Because several techniques can be used to thwart port scanning, it is impossible to cover them all here. In the following list, we highlight some countermeasures that can prevent an attacker from acquiring information from a port scan:
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Deny all—An approach to access control designed to block all traffic to all ports unless such traffic has been explicitly approved. ...
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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.