Book Image

Red Hat Enterprise Linux 9 Administration - Second Edition

By : Pablo Iranzo Gómez, Pedro Ibáñez Requena, Miguel Pérez Colino, Scott McCarty
2 (2)
Book Image

Red Hat Enterprise Linux 9 Administration - Second Edition

2 (2)
By: Pablo Iranzo Gómez, Pedro Ibáñez 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)
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

Using OpenSCAP with security profiles for OSPP and 
PCI DSS

There are several security profiles used for compliance in the industry. Two of the most common, which we will review here, are the OSPP and PCI DSS standards.

The OSPP standard is heavily used in the public sector, serving general-purpose systems and also as a baseline for other more restrictive environments (that is, defense-accredited systems).

PCI DSS is one of the most widely used standards in the finance sector, and also applies to other sectors that want to provide online payments using credit cards.

There are different types of descriptions that can be used with OpenSCAP. We already know OVAL. Let’s check the most important ones here:

  • Extensible Configuration Checklist Description Format (XCCDF): XCCDF is used to build security checklists. It’s very common for compliance testing and scoring.
  • Common Platform Enumeration (CPE): CPE helps identify systems by assigning unique ID...