An annotated guide to program and develop GNU/Linux Embedded systems quickly About This Book * Rapidly design and build powerful prototypes for GNU/Linux Embedded systems * Become familiar with the workings of GNU/Linux Embedded systems and how to manage its peripherals * Write, monitor, and configure applications quickly and effectively, manage an external micro-controller, and use it as co-processor for real-time tasks Who This Book Is For This book targets Embedded System developers and GNU/Linux programmers who would like to program Embedded Systems and perform Embedded development. The book focuses on quick and efficient prototype building. Some experience with hardware and Embedded Systems is assumed, as is having done some previous work on GNU/Linux systems. Knowledge of scripting on GNU/Linux is expected as well. What You Will Learn * Use embedded systems to implement your projects * Access and manage peripherals for embedded systems * Program embedded systems using languages such as C, Python, Bash, and PHP * Use a complete distribution, such as Debian or Ubuntu, or an embedded one, such as OpenWrt or Yocto * Harness device driver capabilities to optimize device communications * Access data through several kinds of devices such as GPIO's, serial ports, PWM, ADC, Ethernet, WiFi, audio, video, I2C, SPI, One Wire, USB and CAN * Practical example usage of several devices such as RFID readers, Smart card readers, barcode readers, z-Wave devices, GSM/GPRS modems * Usage of several sensors such as light, pressure, moisture, temperature, infrared, power, motion In Detail Embedded computers have become very complex in the last few years and developers need to easily manage them by focusing on how to solve a problem without wasting time in finding supported peripherals or learning how to manage them. The main challenge with experienced embedded programmers and engineers is really how long it takes to turn an idea into reality, and we show you exactly how to do it. This book shows how to interact with external environments through specific peripherals used in the industry. We will use the latest Linux kernel release 4.4.x and Debian/Ubuntu distributions (with embedded distributions like OpenWrt and Yocto). The book will present popular boards in the industry that are user-friendly to base the rest of the projects on - BeagleBone Black, SAMA5D3 Xplained, Wandboard and system-on-chip manufacturers. Readers will be able to take their first steps in programming the embedded platforms, using C, Bash, and Python/PHP languages in order to get access to the external peripherals. More about using and programming device driver and accessing the peripherals will be covered to lay a strong foundation. The readers will learn how to read/write data from/to the external environment by using both C programs or a scripting language (Bash/PHP/Python) and how to configure a device driver for a specific hardware. After finishing this book, the readers will be able to gain a good knowledge level and understanding of writing, configuring, and managing drivers, controlling and monitoring applications with the help of efficient/quick programming and will be able to apply these skills into real-world projects. Style and approach This practical tutorial will get you quickly prototyping embedded systems on GNU/Linux. This book uses a variety of hardware to program the peripherals and build simple prototypes.

Kali Linux: a complete pentesting toolkit facilitating smooth backtracking for working hackers About This Book * Conduct network testing, surveillance, pen testing and forensics on MS Windows using Kali Linux * Footprint, monitor, and audit your network and investigate any ongoing infestations * Customize Kali Linux with this professional guide so it becomes your pen testing toolkit Who This Book Is For If you are a working ethical hacker who is looking to expand the offensive skillset with a thorough understanding of Kali Linux, then this is the book for you. Prior knowledge about Linux operating systems and the BASH terminal emulator along with Windows desktop and command line would be highly beneficial. What You Will Learn * Set up Kali Linux for pen testing * Map and enumerate your Windows network * Exploit several common Windows network vulnerabilities * Attack and defeat password schemes on Windows * Debug and reverse-engineer Windows programs * Recover lost files, investigate successful hacks and discover hidden data in innocent-looking files * Catch and hold admin rights on the network, and maintain backdoors on the network after your initial testing is done In Detail Microsoft Windows is one of the two most common OS and managing its security has spawned the discipline of IT security. Kali Linux is the premier platform for testing and maintaining Windows security. Kali is built on the Debian distribution of Linux and shares the legendary stability of that OS. This lets you focus on using the network penetration, password cracking, forensics tools and not the OS. This book has the most advanced tools and techniques to reproduce the methods used by sophisticated hackers to make you an expert in Kali Linux penetration testing. First, you are introduced to Kali's top ten tools and other useful reporting tools. Then, you will find your way around your target network and determine known vulnerabilities to be able to exploit a system remotely. Next, you will prove that the vulnerabilities you have found are real and exploitable. You will learn to use tools in seven categories of exploitation tools. Further, you perform web access exploits using tools like websploit and more. Security is only as strong as the weakest link in the chain. Passwords are often that weak link. Thus, you learn about password attacks that can be used in concert with other approaches to break into and own a network. Moreover, you come to terms with network sniffing, which helps you understand which users are using services you can exploit, and IP spoofing, which can be used to poison a system's DNS cache. Once you gain access to a machine or network, maintaining access is important. Thus, you not only learn penetrating in the machine you also learn Windows privilege's escalations. With easy to follow step-by-step instructions and support images, you will be able to quickly pen test your system and network. Style and approach This book is a hands-on guide for Kali Linux pen testing. This book will provide all the practical knowledge needed to test your network's security using a proven hacker's methodology. The book uses easy-to-understand yet professional language for explaining concepts.

Do amazing things with the shell About This Book * Become an expert in creating powerful shell scripts and explore the full possibilities of the shell * Automate any administrative task you could imagine, with shell scripts * Packed with easy-to-follow recipes on new features on Linux, particularly, Debian-based, to help you accomplish even the most complex tasks with ease Who This Book Is For If you are a beginner or an intermediate Linux user who wants to master the skill of quickly writing scripts and automate tasks without reading the entire man pages, then this book is for you. You can start writing scripts and one-liners by simply looking at the relevant recipe and its descriptions without any working knowledge of shell scripting or Linux. Intermediate / advanced users, system administrators / developers, and programmers can use this book as a reference when they face problems while coding. What You Will Learn * Interact with websites via scripts * Write shell scripts to mine and process data from the Web * Automate system backups and other repetitive tasks with crontab * Create, compress, and encrypt archives of your critical data. * Configure and monitor Ethernet and wireless networks * Monitor and log network and system activity * Tune your system for optimal performance * Improve your system's security * Identify resource hogs and network bottlenecks * Extract audio from video files * Create web photo albums * Use git or fossil to manage revision control and interact with FOSS projects * Create and maintain Linux containers and Virtual Machines * Run a private Cloud server In Detail The shell is the most powerful tool your computer provides. Despite having it at their fingertips, many users are unaware of how much the shell can accomplish. Using the shell, you can generate databases and web pages from sets of files, automate monotonous admin tasks such as system backups, monitor your system's health and activity, identify network bottlenecks and system resource hogs, and more. This book will show you how to do all this and much more. This book, now in its third edition, describes the exciting new features in the newest Linux distributions to help you accomplish more than you imagine. It shows how to use simple commands to automate complex tasks, automate web interactions, download videos, set up containers and cloud servers, and even get free SSL certificates. Starting with the basics of the shell, you will learn simple commands and how to apply them to real-world issues. From there, you'll learn text processing, web interactions, network and system monitoring, and system tuning. Software engineers will learn how to examine system applications, how to use modern software management tools such as git and fossil for their own work, and how to submit patches to open-source projects. Finally, you'll learn how to set up Linux Containers and Virtual machines and even run your own Cloud server with a free SSL Certificate from letsencrypt.org. Style and approach This book will take you through useful real-world recipes designed to make your daily life easier when working with the shell.

Ward off traditional security permissions and effectively secure your Linux systems with SELinux About This Book * Leverage SELinux to improve the secure state of your Linux system * A clear approach to adopting SELinux within your organization * Essential skills and techniques to help further your system administration career Who This Book Is For This book is for Linux administrators who want to control the secure state of their systems. It's packed with the latest information on SELinux operations and administrative procedures so you'll be able to further harden your system through mandatory access control (MAC) - a security strategy that has been shaping Linux security for years. What You Will Learn * Analyze SELinux events and selectively enable or disable SELinux enforcement * Manage Linux users and associate them with the right role and permission set * Secure network communications through SELinux access controls * Tune the full service flexibility by dynamically assigning resource labels * Handle SELinux access patterns enforced through the system * Query the SELinux policy in depth In Detail Do you have the crucial job of protecting your private and company systems from malicious attacks and undefined application behavior? Are you looking to secure your Linux systems with improved access controls? Look no further, intrepid administrator! This book will show you how to enhance your system's secure state across Linux distributions, helping you keep application vulnerabilities at bay. This book covers the core SELinux concepts and shows you how to leverage SELinux to improve the protection measures of a Linux system. You will learn the SELinux fundamentals and all of SELinux's configuration handles including conditional policies, constraints, policy types, and audit capabilities. These topics are paired with genuine examples of situations and issues you may come across as an administrator. In addition, you will learn how to further harden the virtualization offering of both libvirt (sVirt) and Docker through SELinux. By the end of the book you will know how SELinux works and how you can tune it to meet your needs. Style and approach This book offers a complete overview of SELinux administration and how it integrates with other components on a Linux system. It covers the majority of SELinux features with a mix of real life scenarios, descriptions, and examples. This book contains everything an administrator needs to customize SELinux.

Get acquainted with the world of LXC About This Book * Get the most practical and up-to-date resource on LXC and take full advantage of what Linux containers can offer in the day-to-day operations of large-scale applications * Learn how to deploy and administer various workloads such as web applications inside LXC * Save your organization time and money by building robust and secure containers and by speeding the deployment process of your software Who This Book Is For This book is for Linux engineers and software developers who are looking to deploy applications in a fast, secure, and scalable way for use in testing and production. What You Will Learn * Deep dive into the foundations of Linux containers with kernel namespaces and cgroups * Install, configure, and administer Linux containers with LXC and libvirt * Begin writing applications using Python libvirt bindings * Take an in-depth look at container networking * Set up monitoring and security with LXC * Build and deploy a highly available application with LXC in the cloud In Detail In recent years, containers have gained wide adoption by businesses running a variety of application loads. This became possible largely due to the advent of kernel namespaces and better resource management with control groups (cgroups). Linux containers (LXC) are a direct implementation of those kernel features that provide operating system level virtualization without the overhead of a hypervisor layer. This book starts by introducing the foundational concepts behind the implementation of LXC, then moves into the practical aspects of installing and configuring LXC containers. Moving on, you will explore container networking, security, and backups. You will also learn how to deploy LXC with technologies like Open Stack and Vagrant. By the end of the book, you will have a solid grasp of how LXC is implemented and how to run production applications in a highly available and scalable way. Style and approach A practical guide that introduces the core technologies behind Linux containers and provides a deep dive into installation, configuration, and operations of LXC.

Over 80 recipes to get up and running with CentOS 7 Linux server About This Book * A practical guide to install, configure, administer and maintain CentOS 7 servers * An in-depth guide to the CentOS 7 operating system, exploring its various new features and changes in server administration * Presents tricks and solutions to tackle common server issues with the help of practical examples and real-life scenarios Who This Book Is For This book is targeted at beginner and more experienced system administrators alike who want to use CentOS as their server solution. Readers do not need much pre-knowledge or experience at all to work with this book. What You Will Learn * Install and configure CentOS 7 Linux server system from scratch using normal and advanced methods * Maintain a performance-based and secure server solution by deploying expert configuration advice and managing software packages * Monitor, manage and develop your server's file system to maintain a stable performance * Gain best practice methods on sharing files and resources through a network * Install and configure common standard services such as web, mail, FTP, database and domain name server technologies * Introduce you to the world of operating-system-level virtualization using the Docker platform. * Understand the fundamentals of the Security-Enhanced Linux access control architecture * Monitor your IT infrastructure using Nagios In Detail This book will provide you with a comprehensive series of starting points that will give you direct access to the inner workings of the latest CentOS version 7 and help you trim the learning curve to master your server. You will begin with the installation and basic configuration of CentOS 7, followed by learning how to manage your system, services and software packages. You will then gain an understanding of how to administer the file system, secure access to your server and configure various resource sharing services such as file, printer and DHCP servers across your network. Further on, we cover advanced topics such as FTP services, building your own DNS server, running database servers, and providing mail and web services. Finally, you will get a deep understanding of SELinux and you will learn how to work with Docker operating-system virtualization and how to monitor your IT infrastructure with Nagios. By the end of this book, you will have a fair understanding of all the aspects of configuring, implementing and administering CentOS 7 Linux server and how to put it in control. Style and approach This book is a practical reference guide with hands-on examples and solutions to real-world administration problems. It covers in-depth and comprehensive information on CentOS 7 and its new features.

Develop fun and exciting games and create amazing animations for your existing apps with SpriteKit, Apple's 2D game development framework About This Book * Learn the key concepts of game development in iOS * Take advantage of SpriteKit to create your own games and improve your apps * Follow the step-by-step chapters to create a complete product ready to submit to the App Store Who This Book Is For Getting Started with SpriteKit is for beginner-level iOS developers who want to add an extra edge to their apps and create amazing games using SpriteKit. It doesn't matter whether you have experience in iOS development or not as this book will show you the swift tricks you can use to create games. What You Will Learn * Create and configure a SpriteKit project from scratch * Load and manage the basic elements of games such as sprites, labels, and geometrical primitives * Handle touch events, detect collisions, and play sound audio files * Create complex elements, animate sprites, and run the parallax effect * Complete your games with key components such as a main menu, transitions between scenes, a tutorial, and the ability to load and save data * Increase the efficiency of your device using the accelerometer or by adding shaders, lights, and shadows * Gain complementary techniques such as creating or finding audio resources, applying SpriteKit to apps, or using third-party tools In Detail SpriteKit is Apple's game engine to develop native iOS games. Strongly boosted by the Apple Inc., Cupertino, it has increased in popularity since its first release. This book shows you the solutions provided by SpriteKit to help you create any 2D game you can imagine and apply them to create animations that will highlight your existing apps. This book will give you the knowledge you need to apply SpriteKit to your existing apps or create your own games from scratch. Throughout the book, you will develop a complete game. The beautiful designs implemented in the game in this book will easily lead you to learn the basis of 2D game development, including creating and moving sprites, and adding them to a game scene. You will also discover how to apply advanced techniques such as collision detection, action execution, playing music, or running animations to give a more professional aspect to the game. You will finish your first game by learning how to add a main menu and a tutorial, as well as saving and loading data from and to the player's device. Finally, you will find out how to apply some mobile games techniques such as accelerometer use or touch detection. Style and approach Written in an informal way with plenty of illustrative screenshots, this easy-to-follow and practical guide will help you get the most from SpriteKit. The main part of the book provides step-by-step instructions to develop of a complete product, while the last chapters give you some complementary techniques than can be used in mobile 2D game development.

Dive in to the cutting edge techniques of Linux KVM virtualization, and build the virtualization solutions your datacentre demands About This Book * Become an expert in Linux virtualization * Migrate your virtualized datacenter to the cloud * Find out how to build a large scale virtualization solution that will transform your organization Who This Book Is For Linux administrators - if you want to build incredible, yet manageable virtualization solutions with KVM this is the book to get you there. It will help you apply what you already know to some tricky virtualization tasks. What You Will Learn * Explore the ecosystem of tools that support Linux virtualization * Find out why KVM offers you a smarter way to unlock the potential of virtualization * Implement KVM virtualization using oVirt * Explore the KVM architecture - so you can manage, scale and optimize it with ease * Migrate your virtualized datacenter to the cloud for truly resource-efficient computing * Find out how to integrate OpenStack with KVM to take full control of the cloud In Detail A robust datacenter is essential for any organization - but you don't want to waste resources. With KVM you can virtualize your datacenter, transforming a Linux operating system into a powerful hypervisor that allows you to manage multiple OS with minimal fuss. This book doesn't just show you how to virtualize with KVM - it shows you how to do it well. Written to make you an expert on KVM, you'll learn to manage the three essential pillars of scalability, performance and security - as well as some useful integrations with cloud services such as OpenStack. From the fundamentals of setting up a standalone KVM virtualization platform, and the best tools to harness it effectively, including virt-manager, and kimchi-project, everything you do is built around making KVM work for you in the real-world, helping you to interact and customize it as you need it. With further guidance on performance optimization for Microsoft Windows and RHEL virtual machines, as well as proven strategies for backup and disaster recovery, you'll can be confident that your virtualized data center is working for your organization - not hampering it. Finally, the book will empower you to unlock the full potential of cloud through KVM. Migrating your physical machines to the cloud can be challenging, but once you've mastered KVM, it's a little easie. Style and approach Combining advanced insights with practical solutions, Mastering KVM Virtualization is a vital resource for anyone that believes in the power of virtualization to help a business use resources more effectively.