You're reading from Mastering Linux Security and Hardening A practical guide to protecting your Linux system from cyber attacks

Product type Paperback

Published in Feb 2023

Publisher Packt

ISBN-13 9781837630516

Length 618 pages

Edition 3rd Edition

Languages

Tools

Linux

Concepts

Hardening

Author (1):

Donald A. Tevault

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Table of Contents (22) Chapters

Preface

1. Section 1: Setting up a Secure Linux System

2. Running Linux in a Virtual Environment FREE CHAPTER

3. Securing Administrative User Accounts

4. Securing Normal User Accounts

5. Securing Your Server with a Firewall – Part 1

6. Securing Your Server with a Firewall — Part 2

7. Encryption Technologies

8. SSH Hardening

9. Section 2: Mastering File and Directory Access Control (DAC)

10. Mastering Discretionary Access Control

11. Access Control Lists and Shared Directory Management

12. Section 3: Advanced System Hardening Techniques

13. Implementing Mandatory Access Control with SELinux and AppArmor

14. Kernel Hardening and Process Isolation

15. Scanning, Auditing, and Hardening

16. Logging and Log Security

17. Vulnerability Scanning and Intrusion Detection

18. Prevent Unwanted Programs from Running

19. Security Tips and Tricks for the Busy Bee

20. Other Books You May Enjoy

21. Index

Using Security Onion

Security Onion consists of a set of Free Open Source Software (FOSS) tools that you can install on your own local Linux machine. It’s also offered as a pre-built Linux distro image, which is really the preferred method of installation. In the previous editions of this book, I showed you the original version of Security Onion, which was built on Xubuntu Linux. This version had a graphical desktop interface, used Snort 2 as the IDS, and included several graphical front-ends for Snort. The new Security Onion 2 is a completely different animal. It’s now built on a text-mode installation of CentOS 7, and offers way more functionality over the original version. In addition to using it as an IDS/IPS, you can now use it as a forensics analyzer, a log file aggregator, and a log file analyzer. For log file collection and analysis, it includes the ELK stack.

ELK stands for Elastic Search, Logstash, and Kibana. Logstash, used with the appropriate...