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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

Setting up a remote log server

So far, we’ve just been dealing with log files on a local machine. But instead of having to log into each individual machine to review log files, wouldn’t it be nice to just have all of the log files from every machine on just one server? Well, you can do that. The best part is that it’s easy.

But convenience isn’t the only reason to collect log files on one central server. There’s also the matter of log file security. If we leave all log files on each individual host, it’s easier for network intruders to find the files and modify them to delete any messages about their nefarious activities. (That’s easy to do since most log files are just plaintext files that can be edited in a normal text editor.)

Hands-on lab – setting up a basic log server

Setting up the server is identical on Ubuntu, CentOS, and AlmaLinux. There’s only one minor difference in setting up the clients. For best...

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