Book Image

CentOS Quick Start Guide

By : Shiwang Kalkhanda
Book Image

CentOS Quick Start Guide

By: Shiwang Kalkhanda

Overview of this book

Linux kernel development has been the worlds largest collaborative project to date. With this practical guide, you will learn Linux through one of its most popular and stable distributions. This book will introduce you to essential Linux skills using CentOS 7. It describes how a Linux system is organized, and will introduce you to key command-line concepts you can practice on your own. It will guide you in performing basic system administration tasks and day-to-day operations in a Linux environment. You will learn core system administration skills for managing a system running CentOS 7 or a similar operating system, such as RHEL 7, Scientific Linux, and Oracle Linux. You will be able to perform installation, establish network connectivity and user and process management, modify file permissions, manage text files using the command line, and implement basic security administration after covering this book. By the end of this book, you will have a solid understanding of working with Linux using the command line.
Table of Contents (11 chapters)

Managing File Permissions

Permissions are one of several good features that make Linux more secure when applied properly. Since Linux is a multi-user OS, different users will be working with multiple programs and files, and so on. Permissions help keep things secure and organized. In this chapter, you will learn how to manage access controls on files using basic read, write, and execute permissions and user or group ownership. You will also learn to apply special permissions and the access control list (ACL).

In this chapter, we will cover the following topics:

  • Understanding Linux filesystem permissions
  • Managing file permissions
  • Managing file ownership
  • Special permissions
  • Managing default permissions
  • Managing ACL on files