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Mastering Linux Security and Hardening

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

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Product type Paperback
Published in Feb 2023
Publisher Packt
ISBN-13 9781837630516
Length 618 pages
Edition 3rd Edition
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Author (1):
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Donald A. Tevault Donald A. Tevault
Author Profile Icon Donald A. Tevault
Donald A. Tevault
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Table of Contents (22) Chapters Close

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

Questions

  1. In which file would you configure complex password criteria?
  2. When using the useradd utility on a RHEL 7-type machine, what should the UMASK setting be in the /etc/login.defs file?
  3. When using the adduser utility on an Ubuntu 20.04 machine, how would you configure the /etc/adduser.conf file so that new users’ home directories will prevent other users from accessing them?
  4. What change did the National Institute for Standards and Technology recently make to its recommended password policy?
  5. Which three of the following utilities can you use to set user account expiry data?
    1. Useradd
    2. Adduser
    3. Usermod
    4. chage
  6. Why might you want to lock out the user account of a former employee, rather than delete it?
    1. It’s easier to lock an account than it is to delete it.
    2. It takes too long to delete an account.
    3. It’s not possible to delete a user account.
    4. ...
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