Gain an understanding of system administration that will remain applicable throughout your career and understand why tasks are done rather than how to do them Key Features Deploy, secure, and maintain your Linux system in the best possible way Discover best practices to implement core system administration tasks in Linux Explore real-world decisions, tasks, and solutions involved in Linux system administration Book DescriptionLinux is a well-known, open source Unix-family operating system that is the most widely used OS today. Linux looks set for a bright future for decades to come, but system administration is rarely studied beyond learning rote tasks or following vendor guidelines. To truly excel at Linux administration, you need to understand how these systems work and learn to make strategic decisions regarding them. Linux Administration Best Practices helps you to explore best practices for efficiently administering Linux systems and servers. This Linux book covers a wide variety of topics from installation and deployment through to managing permissions, with each topic beginning with an overview of the key concepts followed by practical examples of best practices and solutions. You'll find out how to approach system administration, Linux, and IT in general, put technology into proper business context, and rethink your approach to technical decision making. Finally, the book concludes by helping you to understand best practices for troubleshooting Linux systems and servers that'll enable you to grow in your career as well as in any aspect of IT and business. By the end of this Linux administration book, you'll have gained the knowledge needed to take your Linux administration skills to the next level. What you will learn Find out how to conceptualize the system administrator role Understand the key values of risk assessment in administration Apply technical skills to the IT business context Discover best practices for working with Linux specific system technologies Understand the reasoning behind system administration best practices Develop out-of-the-box thinking for everything from reboots to backups to triage Prioritize, triage, and plan for disasters and recoveries Discover the psychology behind administration duties Who this book is forThis book is for anyone looking to fully understand the role and practices of being a professional system administrator, as well as for system engineers, system administrators, and anyone in IT or management who wants to understand the administration career path. The book assumes a basic understanding of Linux, including the command line, and an understanding of how to research individual tasks. Basic working knowledge of Linux systems and servers is expected.

Practical and actionable recipes for using shell and command-line scripting on your Linux OS with confidence Key Features Learn how to use the command line and write and debug Linux Shell scripts Automate complex repetitive tasks and backups, and learn networking and security A practical approach to system administration, and virtual machine and software management Book DescriptionLinux 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. What you will learn Get an introduction to the command line, text editors, and shell scripting Focus on regular expressions, file handling, and automating complex tasks Automate common administrative tasks Become well-versed with networking and system security scripting Get to grips with repository management and network-based file synchronization Use loops, arguments, functions, and arrays for task automation Who this book is forThis book is for anyone looking to learn about Linux administration via CLI and scripting. Those with no Linux command-line interface (CLI) experience will benefit from it by learning from scratch. More experienced Linux administrators or engineers will also find this book useful, as it will help them organize their knowledge, fill in any gaps, and work efficiently with shell scripts to increase productivity.

Develop secure applications using different features of Azure Active Directory along with modern authentication techniques and protocols Key Features Confidently secure your Azure applications using the tools offered by Azure AD Get to grips with the most modern and effective authorization and authentication protocols Unlock the potential of Azure AD's most advanced features including Microsoft Graph and Azure AD B2C Book DescriptionAzure Active Directory for Secure Application Development is your one-stop shop for learning how to develop secure applications using modern authentication techniques with Microsoft Azure AD. Whether you're working with single-tenant, multi-tenant, or line-of-business applications, this book contains everything you need to secure them. The book wastes no time in diving into the practicalities of Azure AD. Right from the start, you'll be setting up tenants, adding users, and registering your first application in Azure AD. The balance between grasping and applying theory is maintained as you move from the intermediate to the advanced: from the basics of OAuth to getting your hands dirty with building applications and registering them in Azure AD. Want to pin down the Microsoft Graph, Azure AD B2C, or authentication protocol best practices? We've got you covered. The full range of Azure AD functionality from a developer perspective is here for you to explore with confidence. By the end of this secure app development book, you'll have developed the skill set that so many organizations are clamoring for. Security is mission-critical, and after reading this book, you will be too. What you will learn Get an overview of Azure AD and set up your Azure AD instance Master application configuration and the use of service principals Understand new authentication protocols Explore the Microsoft Identity libraries Use OpenID Connect, OAuth 2.0, and MSAL to make sign-in fully secure Build a custom app that leverages the Microsoft Graph API Deploy Azure AD B2C to meet your security requirements Create user flows and policies in Azure AD B2C Who this book is forIf you are a developer or architect who has basic knowledge of Azure Active Directory and are looking to gain expertise in the application security domain, this is the book for you. Basic Azure knowledge and experience in building web applications and web APIs in C# will help you get the most out of this book.

The visual guide to developing for one of the world's hottest new mobile platforms, the Android OS

The Android operating system works on phones that combine a camera, Web browser, e-mail, GPS, and mapping tool into a single accessible pocket-sized unit, and can function on computers, as well. Aimed at visual learners and packed with hundreds of screen shots, this guide brings Flash developers up to speed on the necessary factors to take into account when developing for this touch-based, mobile platform. Experienced Flash developer Julian Dolce escorts you through the process of creating applications for the Android OS using the Flash CS5 development platform and informs you of best practices to try as well as common pitfalls to avoid.Guides you step by step through the process of creating applications for the Android OS using Flash CS5Explores the capabilities and limitations of developing apps for the Android OSPoints out common pitfalls and teaches you best practicesFeatures hundreds of screen shots to assist with visual learning

"Android Development with Flash: Your visual blueprint for developing mobile apps" gets you on your way to developing apps for Android... in a flash

O'Reilly's Learning GNU Emacs covers the most popular and widespread of the Emacs family of editors. The GNU Emacs Pocket Reference is a companion volume to Learning GNU Emacs. This small book, covering Emacs version 20, is a handy reference guide to the basic elements of this powerful editor, presenting the Emacs commands in an easy-to-use tabular format.