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  • Book Overview & Buying Red Hat Enterprise Linux 9 Administration
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Red Hat Enterprise Linux 9 Administration

Red Hat Enterprise Linux 9 Administration - Second Edition

By : Pablo Iranzo Gómez, Pedro Ibañez Requena, Miguel Pérez Colino, Scott McCarty
4 (8)
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Red Hat Enterprise Linux 9 Administration

Red Hat Enterprise Linux 9 Administration

4 (8)
By: Pablo Iranzo Gómez, Pedro Ibañez Requena, Miguel Pérez Colino, Scott McCarty

Overview of this book

With Red Hat Enterprise Linux 9 becoming the standard for enterprise Linux used from data centers to the cloud, Linux administration skills are in high demand. With this book, you’ll learn how to deploy, access, tweak, and improve enterprise services on any system on any cloud running Red Hat Enterprise Linux 9. Throughout the book, you’ll get to grips with essential tasks such as configuring and maintaining systems, including software installation, updates, and core services. You’ll also understand how to configure the local storage using partitions and logical volumes, as well as assign and deduplicate storage. You’ll learn how to deploy systems while also making them secure and reliable. This book provides a base for users who plan to become full-time Linux system administrators by presenting key command-line concepts and enterprise-level tools, along with essential tools for handling files, directories, command-line environments, and documentation for creating simple shell scripts or running commands. With the help of command line examples and practical tips, you’ll learn by doing and save yourself a lot of time. By the end of the book, you’ll have gained the confidence to manage the filesystem, users, storage, network connectivity, security, and software in RHEL 9 systems on any footprint.
Table of Contents (26 chapters)
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1
Part 1 – Systems Administration – Software, User, Network, and Services Management
9
Part 2 – Security with SSH, SELinux, a Firewall, and System Permissions
14
Part 3 – Resource Administration – Storage, Boot Process, Tuning, and Containers
21
Part 4 – Practical Exercises

Creating basic shell scripts

As a system administrator (or sysadmin), there will be times when you want to run a series of commands more than once. You can do this manually by running each command every time. However, there is a more efficient way to do so – by creating a shell script.

A shell script is nothing more than a text file with a list of commands to be run and a reference to the shell that will interpret it.

In this book, we will not cover how to use a text editor; however, we will provide three recommendations for text editors in Linux that could be of help:

  • Nano: This is probably the easiest text editor to use for beginners. Lean, simple, and straightforward, you may want to start by installing it and giving it a try.
  • vi or vim: vi is the default text editor available in RHEL, even included in the minimal install and in many Linux distributions. Even if you are not going to use it every day, it’s good to familiarize yourselves with the bas...
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Red Hat Enterprise Linux 9 Administration
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