Book Image

Hands-On Linux Administration on Azure - Second Edition

By : Kamesh Ganesan, Rithin Skaria, Frederik Vos
Book Image

Hands-On Linux Administration on Azure - Second Edition

By: Kamesh Ganesan, Rithin Skaria, Frederik Vos

Overview of this book

Thanks to its flexibility in delivering scalable cloud solutions, Microsoft Azure is a suitable platform for managing all your workloads. You can use it to implement Linux virtual machines and containers, and to create applications in open source languages with open APIs. This Linux administration book first takes you through the fundamentals of Linux and Azure to prepare you for the more advanced Linux features in later chapters. With the help of real-world examples, you’ll learn how to deploy virtual machines (VMs) in Azure, expand their capabilities, and manage them efficiently. You will manage containers and use them to run applications reliably, and in the concluding chapter, you'll explore troubleshooting techniques using a variety of open source tools. By the end of this book, you'll be proficient in administering Linux on Azure and leveraging the tools required for deployment.

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Table of Contents (14 chapters)
Preface
Preface
About Hands-On Linux Administration on Azure, Second Edition
1
Chapter 1: Exploring the Microsoft Azure Cloud
Chapter 1: Exploring the Microsoft Azure Cloud
Fundamentals of Cloud Computing
Understanding the Microsoft Azure Cloud
Summary
Questions
Further Reading
Free Chapter
2
Chapter 2: Getting Started with the Azure Cloud
Chapter 2: Getting Started with the Azure Cloud
Technical Requirements
Getting Access to Azure
Linux and Azure
Deploying a Linux Virtual Machine
Connecting to Linux
Summary
Questions
Further Reading
3
Chapter 3: Basic Linux Administration
Chapter 3: Basic Linux Administration
The Linux Shell
Getting Help
Working with Text Files
Finding Your Way in the Filesystem
Process Management
Discretionary Access Control
Summary
Questions
Further Reading
4
Chapter 4: Managing Azure
Chapter 4: Managing Azure
Managing Azure Resources Using the Azure CLI and PowerShell
Technical Requirements
Managing Storage Resources
Managing Network Resources
Managing Compute Resources
Virtual Machine Resources
Summary
Questions
Further Reading
5
Chapter 5: Advanced Linux Administration
Chapter 5: Advanced Linux Administration
Technical Requirements
Software Management
Networking
Storage
systemd
Summary
Questions
Further Reading
6
Chapter 6: Managing Linux Security and Identities
Chapter 6: Managing Linux Security and Identities
Linux Security Tips
Technical Requirements
DAC
MAC
firewalld and systemd
Identity and Access Management in Azure – IAM
Summary
Questions
Further Reading
7
Chapter 7: Deploying Your Virtual Machines
Chapter 7: Deploying Your Virtual Machines
Deployment Scenarios
Automated Deployment Options in Azure
Initial Configuration
Vagrant
Packer
Custom Virtual Machines and VHDs
Summary
Questions
Further Reading
8
Chapter 8: Exploring Continuous Configuration Automation
Chapter 8: Exploring Continuous Configuration Automation
Technical Requirements
Understanding Configuration Management
Using Ansible
Using Terraform
Using PowerShell DSC
Azure Policy Guest Configuration
Other Solutions
Summary
Questions
Further Reading
9
Chapter 9: Container Virtualization in Azure
Chapter 9: Container Virtualization in Azure
Introduction to Container Technology
systemd-nspawn
Docker
Azure Container Instances
Azure Container Registry
Buildah, Podman, and Skopeo
Containers and Storage
Summary
Questions
Further Reading
10
Chapter 10: Working with Azure Kubernetes Service
Chapter 10: Working with Azure Kubernetes Service
Technical Requirements
Starting to Use AKS
Working with Helm
Working with Draft
Managing Kubernetes
Persistent Storage
Summary
Questions
Further Reading
11
Chapter 11: Troubleshooting and Monitoring Your Workloads
Chapter 11: Troubleshooting and Monitoring Your Workloads
Technical Requirements
Accessing Your System
Azure Log Analytics
Performance Monitoring
Summary
Questions
Further Reading
12
Chapter 12: Appendix
Chapter 12: Appendix
Chapter 1: Exploring the Microsoft Azure Cloud
Chapter 2: Getting Started with the Azure Cloud
Chapter 3: Basic Linux Administration
Chapter 4: Managing Azure
Chapter 5: Advanced Linux Administration
Chapter 6: Managing Linux Security and Identities
Chapter 7: Deploying Your Virtual Machines
Chapter 8: Exploring Continuous Configuration Automation
Chapter 9: Container Virtualization in Azure
Chapter 10: Working with Azure Kubernetes Service
Chapter 11: Troubleshooting and Monitoring Your Workloads
13
Index
Index

Finding Your Way in the Filesystem

Now that you know how to manipulate and edit text files, it's time to see how these files are stored in the system. As a system administrator, you will have to check, mount, or even unmount the drives. So, now let's take a close look at the filesystem in Linux. The layout of the Linux filesystem is like all other members of the Unix family: very different from Windows. There is no concept of drive letters. Instead, there is a root filesystem (/), and everything else is available on the root filesystem, including other mounted filesystems.

In this section, you'll learn where you can find files, and why they are there.

The Filesystem Hierarchy Standard

In 2001, the Linux Foundation started the Linux Standard Base Project (LSB). Based on the POSIX specification, the idea behind this process was to have a standardized system so that applications can run on any compatible Linux distribution.

The Filesystem Hierarchy Standard...

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