October 2015
Intermediate to advanced
192 pages
4h 15m
English
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Implementing Linux specific checks
In this section, we will describe how to implement some integrity checks to support the finding signs of system manipulation in Linux and similar (for example, BSD) systems.
These checks include the following:
- Searching for anomalies in the local user management
- Understanding and analyzing file metadata for special permissions and privileges
- Using clustering algorithms on file metadata to get indicators on where to look deeper
Checking the integrity of local user credentials
The information about local users in Linux is mostly stored in two files: /etc/passwd and /etc/shadow. The latter is optional and all the information about local users—including the hashed password—was originally stored in /etc/passwd. Soon, it ...
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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.