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Practical Linux Security Cookbook

You're reading from   Practical Linux Security Cookbook Secure your Linux machines and keep them secured with the help of exciting recipes

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Product type Paperback
Published in Apr 2016
Publisher Packt
ISBN-13 9781785286421
Length 276 pages
Edition 1st Edition
Tools
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Authors (2):
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Michael A Lindner Michael A Lindner
Author Profile Icon Michael A Lindner
Michael A Lindner
Tajinder Kalsi Tajinder Kalsi
Author Profile Icon Tajinder Kalsi
Tajinder Kalsi
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Toc

Table of Contents (12) Chapters Close

Preface 1. Linux Security Problems 2. Configuring a Secure and Optimized Kernel FREE CHAPTER 3. Local Filesystem Security 4. Local Authentication in Linux 5. Remote Authentication 6. Network Security 7. Security Tools 8. Linux Security Distros 9. Patching a Bash Vulnerability 10. Security Monitoring and Logging Index

The patch management system


In present computing scenarios, vulnerability and patch management are part of a never-ending cycle. When a computer is attacked due to a known vulnerability for the purpose of being exploited, the patch for such a vulnerability already exists; however, it has not been implemented properly on the system, thus causing the attack.

As a system administrator, we have to know which patch needs to be installed and which one should be ignored.

Getting ready

Since patch management can be done using the inbuilt tools of Linux, no specific settings need to be configured before performing the steps.

How to do it…

The easiest and most efficient way to keep our system updated is using Update Manager, which is built into the Linux system. Here, we will explore the workings of Update Manager in the Ubuntu system:

  1. To open the graphical version of Update Manager in Ubuntu, click on Superkey, which is on the left-hand side in the toolbar, and then type update. Here, we can see Update...

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