You're reading from Mastering Ubuntu Server Gain expertise in the art of deploying, configuring, managing, and troubleshooting Ubuntu Server

Product type Paperback

Published in Dec 2020

Publisher Packt

ISBN-13 9781800564640

Length 702 pages

Edition 3rd Edition

Tools

Ubuntu Server

Concepts

System Administration

Author (1):

Jay LaCroix

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Table of Contents (26) Chapters

Preface

1. Deploying Ubuntu Server

2. Managing Users and Permissions FREE CHAPTER

3. Managing Software Packages

4. Navigating and Essential Commands

5. Managing Files and Directories

6. Boosting Your Command-line Efficiency

7. Controlling and Managing Processes

8. Monitoring System Resources

9. Managing Storage Volumes

10. Connecting to Networks

11. Setting Up Network Services

12. Sharing and Transferring Files

13. Managing Databases

14. Serving Web Content

15. Automating Server Configuration with Ansible

16. Virtualization

17. Running Containers

18. Container Orchestration

19. Deploying Ubuntu in the Cloud

20. Automating Cloud Deployments with Terraform

21. Securing Your Server

22. Troubleshooting Ubuntu Servers

23. Preventing Disasters

24. Another Book You May Enjoy

25. Index

Installing security updates

Since I've mentioned updating packages several times, let's have a formal conversation about it. Updated packages are made available for Ubuntu quite often, sometimes even daily. These updates mainly include the latest security updates but may also include new features. Since Ubuntu 20.04 is an LTS release, security updates are much more common than feature updates. Installing the latest updates on your server is a very important practice, but, unfortunately, it's not something that all administrators keep up on for various reasons.

When installed, security updates very rarely make many changes to your server, other than helping to keep it secure against the latest threats. However, it's always possible that a security update that's intended to fix a security issue ends up breaking something else. This is rare, but I've seen it happen. When it comes to production servers, it's often difficult to keep them updated,...