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The macOS User Administration Guide

The macOS User Administration Guide

By : Herta Nava
4.6 (10)
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The macOS User Administration Guide

The macOS User Administration Guide

4.6 (10)
By: Herta Nava

Overview of this book

Apple is pushing the capabilities of its technologies to help users achieve high performance, including improvements in its OS running across all Mac systems, macOS, and new technologies such as M1 Silicon chips. This book walks you through macOS from a system administration and support point of view, exploring its latest features. The book starts by explaining macOS architecture, installation, and startup processes to enable you to get started with the OS. You'll learn how to manage users and discover techniques for user security and privacy. Moving on, you'll get to grips with the macOS file system and learn to manage disks, volumes, and partitions for effective file management. Most of the examples covered in this book are from an administrator's perspective; however, when relevant, a standard user's perspective is also presented. You'll find illustrations for Mac systems running macOS 11 (Big Sur), and when necessary, for macOS 10.15 (macOS Catalina). Finally, you'll explore advanced topics such as networking and using command-line tools for administration tasks. By the end of this macOS book, you'll be well-versed with macOS features, administration tasks, and best practices. You'll also be able to apply the concepts to increase your chances of success in obtaining Apple certifications such as Apple Certified Support Professional (ACSP).
Table of Contents (19 chapters)
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18
About Packt

Understanding ownership and permissions

We need to review a few concepts to clearly understand how ownership and permissions are managed in macOS. More specifically, we need to understand what permissions and ownership are, the types of permissions macOS uses, and how they work in macOS. At the end of this section, you will be able to describe the macOS permissions and ownership model.

In this section, we will explore the following topics:

  • What are ownership and permissions in macOS?
  • Access Control Lists (ACLs)
  • Access hierarchical rules
  • File flags
  • macOS's filesystem security policy

Let's begin by understanding what ownership and permissions are in the context of macOS.

What are ownership and permissions in macOS?

A "permission" is the granted right to perform an operation, which can vary from executing code to accessing certain data or resources, such as files and folders. macOS uses a combination of the UNIX ownership and permission model, POSIX Access Control Lists...

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