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Mastering Linux Security and Hardening - Third Edition

You're reading from Mastering Linux Security and Hardening - Third Edition

Product type Book

Published in Feb 2023

Publisher Packt

ISBN-13 9781837630516

Pages 618 pages

Edition 3rd Edition

Languages

Concepts

Information Security

Author (1):

Donald A. Tevault

Table of Contents (22) Chapters

Preface

1. Section 1: Setting up a Secure Linux System

2. Running Linux in a Virtual Environment

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

GNU Privacy Guard (GPG)

We’ll begin with GNU Privacy Guard (GPG). This is a free open source implementation of Phil Zimmermann’s Pretty Good Privacy, which he created back in 1991. You can use either one of them to either encrypt or cryptographically sign files or messages. In this section, we’ll focus strictly on GPG.

There are some advantages of using GPG:

It uses strong, hard-to-crack encryption algorithms.
It uses the private/public key scheme, which eliminates the need to transfer a password to a message or file recipient in a secure manner. Instead, just send along your public key, which is useless to anyone other than the intended recipient.
You can use GPG to just encrypt your own files for your own use, the same as you’d use any other encryption utility.
It can be used to encrypt email messages, allowing you to have true end-to-end encryption for sensitive emails.
There are a few GUI-type frontends available...

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Authors (1)

Donald A. Tevault

Donald A. Tevault - but you can call him Donnie - got involved with Linux way back in 2006, and has been working with it ever since. He holds the Linux Professional Institute Level 3-Security certification, and the GIAC Incident Handler certification. Donnie is a professional Linux trainer, and thanks to the magic of the internet, teaches Linux classes literally the world over from the comfort of his living room. He's also a Linux security researcher for an IoT security company.

See other products by Donald A. Tevault

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