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Linux for System Administrators

You're reading from Linux for System Administrators Navigate the complex landscape of the Linux OS and command line for effective administration

Product type Paperback

Published in Sep 2023

Publisher Packt

ISBN-13 9781803247946

Length 294 pages

Edition 1st Edition

Tools

Linux

Concepts

Operating Systems

Authors (2):

Viorel Rudareanu

Daniil Baturin

View More author details

Table of Contents (21) Chapters

Preface

1. Part 1: Linux Basics

2. Chapter 1: Getting to Know Linux FREE CHAPTER

3. Chapter 2: The Shell and Its Commands

4. Chapter 3: The Linux Filesystem

5. Chapter 4: Processes and Process Control

6. Chapter 5: Hardware Discovery

7. Part 2: Configuring and Modifying Linux Systems

8. Chapter 6: Basic System Settings

9. Chapter 7: User and Group Management

10. Chapter 8: Software Installation and Package Repositories

11. Chapter 9: Network Configuration and Debugging

12. Chapter 10: Storage Management

13. Part 3: Linux as a Part of a Larger System

14. Chapter 11: Logging Configuration and Remote Logging

15. Chapter 12: Centralized Authentication

16. Chapter 13: High Availability

17. Chapter 14: Automation with Chef

18. Chapter 15: Security Guidelines and Best Practices

19. Index

Why subscribe?

20. Other Books You May Enjoy

System upgrade

Another advantage of high-level package managers is that they automate the upgrade of the entire system (or at least packages installed from repositories).

Upgrading a system with YUM or DNF

The command to upgrade all packages is dnf upgrade or yum upgrade. To force a repository index download, you can add --refresh. In some cases, you will also want to remove conflicting or outdated packages to complete an upgrade; in that case, you may need dnf upgrade --allowerasing:

$ sudo dnf upgrade
Last metadata expiration check: 1:33:10 ago on Mon 17 Oct 2022 10:06:44 AM IST.
Dependencies resolved.
============================================================
Package                 Arch   Version         Repo     Size
============================================================
Installing:
kernel ...

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Authors (2)

Viorel Rudareanu

Viorel Rudareanu

Viorel Rudareanu has over 15 years of experience working with Linux. He possesses a comprehensive understanding of operating systems and their intricacies. He has successfully implemented and managed Linux-based infrastructures, leveraging the platform's robustness and flexibility to optimize system performances.

See other products by Viorel Rudareanu

Daniil Baturin

Daniil Baturin

Daniil Baturin was first introduced to Linux by older friends when he was a high school student in 2002, and he has worked with Linux systems professionally since 2007 – as a systems administrator, software engineer, and contributor to multiple open source projects. He's currently a maintainer of VyOS – a Linux-based network operating system focused on enterprise and service provider routers.

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