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Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

By : Donald A. Tevault
4.5 (4)
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Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

4.5 (4)
By: Donald A. Tevault

Overview of this book

From creating networks and servers to automating the entire working environment, Linux has been extremely popular with system administrators for the last couple of decades. However, security has always been a major concern. With limited resources available in the Linux security domain, this book will be an invaluable guide in helping you get your Linux systems properly secured. Complete with in-depth explanations of essential concepts, practical examples, and self-assessment questions, this book begins by helping you set up a practice lab environment and takes you through the core functionalities of securing Linux. You'll practice various Linux hardening techniques and advance to setting up a locked-down Linux server. As you progress, you will also learn how to create user accounts with appropriate privilege levels, protect sensitive data by setting permissions and encryption, and configure a firewall. The book will help you set up mandatory access control, system auditing, security profiles, and kernel hardening, and finally cover best practices and troubleshooting techniques to secure your Linux environment efficiently. By the end of this Linux security book, you will be able to confidently set up a Linux server that will be much harder for malicious actors to compromise.
Table of Contents (20 chapters)
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1
Section 1: Setting up a Secure Linux System
8
Section 2: Mastering File and Directory Access Control (DAC)
11
Section 3: Advanced System Hardening Techniques

Setting up a remote log server

So far, we've just been dealing with log files on a local machine. But instead of having to log into each individual machine to review log files, wouldn't it be nice to just have all of the log files from every machine on just one server? Well, you can do that. The best part is that it's easy.

But convenience isn't the only reason to collect log files on one central server. There's also the matter of log file security. If we leave all log files on each individual host, it's easier for network intruders to find the files and modify them to delete any messages about their nefarious activities. (That's easy to do since most log files are just plaintext files that can be edited in a normal text editor.)

Hands-on lab –...

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