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Mastering Linux Administration

Mastering Linux Administration

By : Calcatinge, Balog
5 (7)
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Mastering Linux Administration

Mastering Linux Administration

5 (7)
By: Calcatinge, Balog

Overview of this book

Harness the power of Linux in modern data center management, leveraging its unparalleled versatility for efficiently managing your workloads in on-premises and cloud environments. In this second edition, you'll find updates on the latest advancements in Linux administration including containerization, shell scripting, and hypervisors. Written by an experienced Linux trainer, this book will start you off with Linux installation on on-premises systems. As you progress, you’ll master the Linux command line, files, packages, and filesystems. You'll explore essential Linux commands and techniques to secure your Linux environment. New to this edition is a chapter on shell scripting, providing structured guidance on using shell programming for basic Linux automation. This book also delves into the world of containers, with two new chapters dedicated to Docker containers and hypervisors, including KVM virtual machines. Once adept with Linux containers, you'll learn about modern cloud technologies, managing and provisioning container workloads using Kubernetes, and automating system tasks using Ansible. Finally, you'll get to grips with deploying Linux to the cloud using AWS and Azure-specific tools. By the end of this Linux book, you'll have mastered everyday administrative tasks, seamlessly navigating workflows spanning from on-premises to the cloud.
Table of Contents (24 chapters)
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1
Part 1:Basic Linux Administration
7
Part 2:Advanced Linux Administration
13
Part 3:Server Administration
17
Part 4:Cloud Administration

Working with Processes, Daemons, and Signals

Linux is a multitasking operating system. Multiple programs or tasks can run in parallel, each with its own identity, scheduling, memory space, permissions, and system resources. Processes encapsulate the execution context of any such program. Understanding how processes work and communicate with each other is an important skill for any seasoned Linux system administrator and developer to have.

This chapter explores the basic concepts behind Linux processes. We’ll look at different types of processes, such as foreground and background processes, with special emphasis being placed on daemons as a particular type of background process. We’ll closely study the anatomy of a process and various inter-process communication mechanisms in Linux – signals in particular. Along the way, we’ll learn about some of the essential command-line utilities for managing processes and daemons and working with signals. We will also...

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