Edge Computing Systems with Kubernetes. A use case guide for building edge systems using K3s, k3OS, and open source cloud native technologies

Sergio Méndez

Edge computing is a way of processing information near the source of data instead of processing it on data centers in the cloud. In this way, edge computing can reduce latency when data is processed, improving the user experience on real-time data visualization for your applications. Using K3s, a light-weight Kubernetes and k3OS, a K3s-based Linux distribution along with other open source cloud native technologies, you can build reliable edge computing systems without spending a lot of money.In this book, you will learn how to design edge computing systems with containers and edge devices using sensors, GPS modules, WiFi, LoRa communication and so on. You will also get to grips with different use cases and examples covered in this book, how to solve common use cases for edge computing such as updating your applications using GitOps, reading data from sensors and storing it on SQL and NoSQL databases. Later chapters will show you how to connect hardware to your edge clusters, predict using machine learning, and analyze images with computer vision. All the examples and use cases in this book are designed to run on devices using 64-bit ARM processors, using Raspberry Pi devices as an example.By the end of this book, you will be able to use the content of these chapters as small pieces to create your own edge computing system.

Mastering Metasploit. With this tutorial you can improve your Metasploit skills and learn to put your network’s defenses to the ultimate test. The step-by-step approach teaches you the techniques and languages needed to become an expert

Nipun Jaswal

Mastering QuickBooks(R) 2022. The bestselling guide to bookkeeping and the QuickBooks Online accounting software - Third Edition

Crystalynn Shelton

Whether you have bookkeeping experience or not, handling the financial side of your growing business requires expertise. With Mastering QuickBooks® 2022, Third Edition, you’ll learn how to use QuickBooks® to build the perfect budget, simplify tax return preparation, manage inventory, track job costs, generate income statements and financial reports, and perform all accounting-related tasks with ease.Throughout the book, you’ll be guided by an experienced Certified Public Accountant and Advanced Certified QuickBooks ProAdvisor – from setup to core features and beyond.This new edition has every chapter revised to cover a range of new features and updates available, including smart invoicing and cash flow projections. You'll learn how to create multilingual invoices, track mileage, work with a cash flow dashboard that helps you with cash forecasting and planning reports, and upload batches of bills and checks.This book will also teach you how to manage sales tax, including how to set up, collect, track, pay, and report sales tax payments. In addition to this, you’ll explore how to export reports to Google Sheets, use the custom chart builder, import budgets, and perform smart reporting.By the end of this book, you'll be well-versed with QuickBooks and have the confidence to manage all your bookkeeping tasks with ease.

ServiceNow for Architects and Project Leaders. A complete guide to driving innovation, creating value, and making an impact with ServiceNow

Roy Justus, David Zhao

ServiceNow is the leading enterprise service management platform that enables the effective management of services in a modern enterprise.In this audiobook, you’ll learn how to avoid pitfalls that can challenge value realization, where to focus, how to balance tradeoffs, and how to get buy-in for complex decisions. You’ll understand the key drivers of value in ServiceNow implementation and how to structure your program for successful delivery. Moving ahead, you’ll get practical guidance on the methods and considerations in securely using ServiceNow. You’ll also learn how to set up a multi-instance environment including best practices, patterns and alternatives in the use and maintenance of a multi-instance pipeline. Later chapters cover methods and approaches to design processes that deliver optimal ROI. Further, you’ll receive tips for designing technical standards, designing for scale, ensuring maintainability, and building a supportable instance. Finally, you’ll focus on the innovative possibilities that can be unlocked in a ServiceNow journey which will help you to manage uncertainty and claim the value of being an early adopter.By the end of this audiobook, you’ll be prepared to lead or support a ServiceNow implementation with confidence that you’re bringing not only a solution but also making an impact in your organization.

Microsoft System Center Configuration Manager. Deploy a scalable solution by ensuring high availability and disaster recovery using Configuration Manager with this book and

Marius Sandbu

Microsoft Configuration Manager is both extensive and complex, and for many, it is the primary tool for Enterprise management. With each new release, Configuration Manager continually proves itself to be the ultimate solution for managing both clients and mobile devices.This book covers in detailed and easy-to-understand steps how to set up highly available Configuration Manager roles and backend services such as SQL, DNS, and AD. You will learn how to plan for high availability, what kind of roles there are, and how they scale.The book starts by examining what needs to be taken into account when planning for high availability before moving on to focus on the different roles and how they can be set up. The book will also go through different scenarios as well as various backup and recovery procedures. You will learn how to identify bottlenecks within the different components and create sample design scenarios for high availability on Configuration Manager. The book will also look at the different high availability options and how to deploy them.

Tcl/Tk 8.5 Programming Cookbook. With over 100 recipes, this Cookbook is ideal for both beginners and advanced Tcl/Tk programmers. From the basics to creating applications, it’s full of indispensable tips and tricks to make the most of the language

Bert Wheeler, Delbert A Wheeler, Clif Flynt

With Tcl/Tk, you can create full-featured cross-platform applications in a simple and easy-to-understand way without any expensive development package; the only tools required are a simple text editor and your imagination. This practical cookbook will help you to efficiently interact with editors, debuggers, and shell type interactive programs using Tcl/Tk 8. This cookbook will comprehensively guide you through practical implementation of Tcl/Tk 8.5 commands and tools.This book will take you through all the steps needed to become a productive programmer in Tcl/Tk 8. Right from guiding you through the basics to creating a stand-alone application, it provides complete explanation of all the steps along with handy tips and tricks.The book begins with an introduction to the Tcl shell, syntax, variables, and programming best practices in the language. It then explores procedures and the flow of events with control constructs followed by advanced error trapping and recovery. From Chapter 4, a detailed study of string expressions and handling enables you to handle various string functions and use lists to expand the string functionality. The book then discusses in-depth the Tcl Dictionary and how to utilize it to store and retrieve data. File operations and Tk GUI handling are covered extensively along with a developing a real-world address book application to practice the concepts learned.

Linux Command Line and Shell Scripting Techniques. Master practical aspects of the Linux command line and then use it as a part of the shell scripting process

Vedran Dakic, Jasmin Redzepagic

Linux Command Line and Shell Scripting Techniques begins by taking you through the basics of the shell and command-line utilities. You’ll start by exploring shell commands for file, directory, service, package, and process management. Next, you’ll learn about networking - network, firewall and DNS client configuration, ssh, scp, rsync, and vsftpd, as well as some network troubleshooting tools. You’ll also focus on using the command line to find and manipulate text content, via commands such as cut, egrep, and sed. As you progress, you'll learn how to use shell scripting. You’ll understand the basics - input and output, along with various programming concepts such as loops, variables, arguments, functions, and arrays. Later, you’ll learn about shell script interaction and troubleshooting, before covering a wide range of examples of complete shell scripts, varying from network and firewall configuration, through to backup and concepts for creating live environments. This includes examples of performing scripted virtual machine installation and administration, LAMP (Linux, Apache, MySQL, PHP) stack provisioning and bulk user creation for testing environments.By the end of this Linux book, you’ll have gained the knowledge and confidence you need to use shell and command-line scripts.

Mastering Machine Learning with R. Master machine learning techniques with R to deliver insights for complex projects

Cory Lesmeister