Mastering Linux Administration : Take Your Sysadmin Skills to the Next Level by Configuring and Maintaining Linux Systems / Alexandru Calcatinge and Julian Balog.

Format:

Book

Author/Creator:

Calcatinge, Alexandru, author.

Balog, Julian, author.

Language:

English

Subjects (All):

Linux.

Operating systems (Computers).

Physical Description:

1 online resource (764 pages)

Edition:

Second edition.

Place of Publication:

Birmingham : Packt Publishing, [2024]

System Details:

Mode of access: World Wide Web.

Biography/History:

Calcatinge Alexandru: Alexandru Calcatinge is an open-minded architect with a background in computer science and mathematics. He is a senior university lecturer with a PhD in urban planning from Ion Mincu University of Architecture and Urban Planning and a postgraduate degree in DevOps from Caltech's Center for Technology and Management Education (CTME). He teaches students about architectural programming and development and open source technologies. He has authored five books on architecture and urban planning and numerous scientific articles on urban and rural development. Alex was certified as a Linux trainer in 2017. He loves the DevOps philosophy and the possibilities that cloud technologies bring for the future. He is also a certified programming analyst, computer network administrator, trainer, designer, and life coach. Balog Julian: Julian Balog is a senior software engineer with more than 15 years of experience in the industry. Currently, his work primarily focuses on application delivery controllers, containerized workflows, networking, and security. With a never-ending passion for Linux and open-source technologies, Julian is always in pursuit of learning new things while solving problems and making things work through simple, efficient, and practical engineering. He lives with his wife, two children, and an Aussie-doodle in the greater Seattle area, Washington.

Summary:

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. Starting with Linux installation on on-premises systems, this book helps you 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.

Contents:

Cover

Title Page

Copyright and Credits

Dedications

Contributors

Table of Contents

Part 1: Basic Linux Administration

Chapter 1: Installing Linux

Technical requirements

Introducing the Linux operating system

Exploring Linux distributions

Choosing a Linux distribution

Installing Linux - the basics

How to install Linux on bare metal

Linux in a VM

VM provisioning using Hyper-V

VM provisioning using Oracle's VirtualBox

Enabling Windows Subsystem for Linux

Installing Linux - the advanced stages

The Linux boot process

PXE network boot explained

Linux distributions - a practical guide

Case study - development workstation

Case study - secure web server

Use case - personal blog

Use case - media server

Summary

Questions

Further reading

Chapter 2: The Linux Shell and Filesystem

Introducing the Linux shell

Establishing the shell connection

The command-line prompt

Shell command types

Explaining the command structure

Consulting the manual

The Linux filesystem

Directory structure

Working with files and directories

Understanding file paths

Basic file operations

Commands for file viewing

Commands for file properties

Using text editors to create and edit files

Using Vim to edit text files

The nano text editor

Chapter 3: Linux Software Management

Linux software package types

The DEB and RPM package types

The snap and flatpak package types

Managing software packages

Managing DEB packages

Managing RPM packages

Using the snap and flatpak packages

Installing new desktop environments in Linux

Installing KDE Plasma on Fedora Linux

Chapter 4: Managing Users and Groups.

Technical requirements

Managing users

Understanding sudo

Creating, modifying, and deleting users

Managing groups

Creating, modifying, and deleting groups

Managing permissions

File and directory permissions

Chapter 5: Working with Processes, Daemons, and Signals

Introducing processes

Understanding process types

The anatomy of a process

Working with processes

Using the ps command

Using the pstree command

Using the top command

Using the kill and killall commands

Using the pgrep and pkill commands

Working with daemons

Working with systemd daemons

Explaining inter-process communication

Working with signals

Part 2: Advanced Linux Administration

Chapter 6: Working with Disks and Filesystems

Understanding devices in Linux

Linux abstraction layers

Device files and naming conventions

Understanding filesystem types in Linux

Understanding disks and partitions

Common disk types

Partitioning disks

Introducing LVM in Linux

LVM snapshots

Chapter 7: Networking with Linux

Exploring basic networking

Computer networks

The OSI model

The TCP/IP network stack model

TCP/IP protocols

IP addresses

Sockets and ports

Linux network configuration

Working with network services

DHCP servers

DNS servers

Authentication servers

File sharing

Printer servers

File transfer

Mail servers

NTP servers

Remote access

Understanding network security

Chapter 8: Linux Shell Scripting

Exploring the Linux shell

Bash shell features

Bash shell variables.

Basics of shell scripting

Creating a shell script file

Variables in shell scripts

Using mathematical expressions in shell scripts

Using programming structures

Using arrays in Bash

Reading input data

Formatting output data

Understanding exit statuses and testing structures

Using conditional if statements

Using looping statements

Working with functions

Using sed and (g)awk commands

Using scripts to showcase interprocess communication

Shared storage

Unnamed pipes

Named pipes

Sockets

Scripting for administrative tasks

Creating scripts for system administrative tasks

Packaging scripts

Chapter 9: Securing Linux

Understanding Linux security

Introducing SELinux

Working with SELinux

Introducing AppArmor

Working with AppArmor

Final considerations

Working with firewalls

Understanding the firewall chain

Introducing Netfilter

Working with iptables

Introducing nftables

Using firewall managers

Exercises

Chapter 10: Disaster Recovery, Diagnostics, and Troubleshooting

Planning for disaster recovery

A brief introduction to risk management

Risk calculation

Designing a DRP

Backing up and restoring the system

Disk cloning solutions

Introducing common Linux diagnostic tools for troubleshooting

Tools for troubleshooting boot issues

Tools for troubleshooting general system issues

Tools for troubleshooting network issues

Tools for troubleshooting hardware issues

Part 3: Server Administration

Chapter 11: Working with Virtual Machines

Introduction to virtualization on Linux

Efficiency in resource usage

Introduction to hypervisors.

Understanding Linux KVMs

Choosing the hypervisor

Using the KVM hypervisor

Working with basic KVM commands

Creating a VM using the command line

Basic VM management

Advanced KVM management

Connecting to a VM

Cloning VMs

Creating VM templates

Obtaining VM and host resource information

Managing VM resource usage

Provisioning VMs using cloud-init

Understanding how cloud-init works

Installing and configuring cloud-init

Public key authentication with SSH

Chapter 12: Managing Containers with Docker

Understanding Linux containers

Comparing containers and VMs

Understanding the underlying container technology

Understanding Docker

Working with Docker

Which Docker version to choose?

Installing Docker

Using some Docker commands

Managing Docker containers

Working with Dockerfiles

Building container images from Dockerfiles

Deploying a containerized application with Docker

Deploying a website using Docker

Chapter 13: Configuring Linux Servers

Introducing Linux services

Setting up SSH

Installing and configuring OpenSSH on Ubuntu

Setting up a DNS server

Caching a DNS service

Creating a primary DNS server

Setting up a secondary DNS server

Setting up a DHCP server

Setting up an NFS server

Installing and configuring the NFS server

Configuring the NFS client

Testing the NFS setup

Setting up a Samba file server

Installing and configuring Samba

Creating Samba users

Accessing the Samba shares

Part 4: Cloud Administration

Chapter 14: Short Introduction to Cloud Computing

Introduction to cloud technologies.

Exploring the cloud computing standards

Understanding the architecture of the cloud

Knowing the key features of cloud computing

Introducing IaaS solutions

Amazon EC2

Microsoft Azure Virtual Machines

Other strong IaaS offerings

Introducing PaaS solutions

Amazon Elastic Beanstalk

Google App Engine

DigitalOcean App Platform

Open source PaaS solutions

Introducing CaaS solutions

Introducing the Kubernetes container orchestration solution

Deploying containers in the cloud

Introducing microservices

Introducing DevOps

Exploring cloud management tools

Ansible

Puppet

Chef Infra

Chapter 15: Deploying to the Cloud with AWS and Azure

Working with AWS EC2

Introducing and creating AWS EC2 instances

Introducing AWS EC2 placement groups

Using AWS EC2 instances

Working with the AWS CLI

Working with Microsoft Azure

Creating and deploying a virtual machine

Connecting with SSH to a virtual machine

Managing virtual machines

Working with the Azure CLI

Chapter 16: Deploying Applications with Kubernetes

Introducing Kubernetes

Understanding the Kubernetes architecture

Introducing the Kubernetes object model

The anatomy of a Kubernetes cluster

Installing and configuring Kubernetes

Installing Kubernetes on a desktop

Installing Kubernetes on VMs

Working with Kubernetes

Using kubectl

Deploying applications

Running Kubernetes in the cloud

Chapter 17: Infrastructure and Automation with Ansible

Introducing Ansible architecture and configuration management

Understanding the Ansible architecture

Introducing configuration management

Installing Ansible.

Installing Ansible on Ubuntu.

Notes:

Includes index.

Includes bibliographical references and index.

Description based on publisher supplied metadata and other sources.

Description based on print version record.

ISBN:

9781837630837

1837630836

OCLC:

1428447664