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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

Scanning with ClamAV and maldet

LMD’s maldet daemon constantly monitors the directories that you specify in the /usr/local/maldetect/monitor_paths file. When it finds a suspicious file, it will perform the action that you specified in the conf.maldet file.

You can test your setup by downloading a simulated virus file from the European Institute for Computer Antivirus Research (EICAR) site.

There are four different simulated virus files that you can download from https://www.eicar.org/download-anti-malware-testfile/. Note that if you’re running a Windows host machine, these files could get flagged by the Windows antivirus. So, your best bet is to download the files directly to your Linux virtual machines.

Just download one or all of the EICAR test files and transfer them to your home directory on the virtual machines. Your best bet is to download the files directly to your virtual machines, with these four commands:

wget https://secure.eicar...
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