Pablo Iranzo GómezRed Hat Enterprise Linux 9 Administration: A comprehensive Linux system administration guide for RHCSA certification exam candidates, 2nd Edition

Those lessons inside the book are amazing.

As a longtime user of RHEL, it’s always exciting to see a new version that highlights performance, security, and manageability improvements. I’ve relied heavily on RHEL for over 20 years to run critical web-based workloads that include Python, Java, NodeJS, PHP, MySQL, and Postgres applications. RHEL has never let me down. Occasionally, I’ve tried other Linux distributions that may have offered more cutting versions of core components or features at the time. Still, I’ve always gone back to using RHEL for its stability and long-term support. If you need stability, then RHEL is for you.The RHEL 9 Administration book, co-authored by four Red Hatters, is a comprehensive guide for beginners and those targeting a Red Hat Certified System Administrator certificate. The authors included guided exercises to help readers apply their knowledge to practical use cases. The book weighs in at 530 pages and covers various topics such as installation, best practices, and recommendations for configuration, tooling, and getting started with Ansible for the automation of provisioning and administration of RHEL 9.The authors are careful to call out topics not covered RHSCA exam so the readers know not to spend too much time on specific subjects if they plan to take the test. The authors target newbies who have never installed RHEL to experienced system administrators who might want to know how to install RHEL on a hyper-scaler such as AWS or Google Cloud. Overall, the authors do a great job of targeting the middle so that there is something for everyone at all technical levels.If you have an eye for the future, the authors end the book with a comprehensive overview of Podman, Buildah, and Skopeo. These are tools used for building and managing containers. According to Gartner, 75% of organizations globally will be running containerized workloads in production in 2022, up from around 30% in 2020. (Casey, 2022) Podman is an open-source Docker-compatible replacement that readers can run on Linux, macOS, and Windows.Overall, this book is of great value and an essential reference book for anyone who needs or wants to use RHEL 9.

This book covers all the basic topics with clear explanations and it’s very helpful for anyone looking to learn Linux basics or pass the certification exam. Highly recommended this book

I have to say this book is not ideal at all, the explanations are not clear at all, you have to search on internet to find enough knowledge to understand the topics. not recommend.