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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
Author (1):
Donald A. Tevault Donald A. Tevault
Profile icon Donald A. Tevault
Toc

Table of Contents (22) Chapters close

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

The advantages of using sudo

Used properly, the sudo utility can greatly enhance the security of your systems, and it can make an administrator’s job much easier. With sudo, you can do the following:

  • Assign certain users full administrative privileges, while assigning other users only the privileges they need to perform tasks that are directly related to their respective jobs.
  • Allow users to perform administrative tasks by entering their own normal user passwords so that you don’t have to distribute the root password to everybody and their brother.
  • Make it harder for intruders to break into your systems. If you implement sudo and disable the root user account, would-be intruders won’t know which account to attack because they won’t know which one has admin privileges.
  • Create sudo policies that you can deploy across an entire enterprise network, even if that network has a mix of Unix, BSD, and Linux machines.
  • Improve your...
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