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Virtual Roots 2.0

Virtual Roots 2.0
Author: Thomas Jay Kemp
Publisher: Rowman & Littlefield
Total Pages: 350
Release: 2003
Genre: Computers
ISBN: 9780842029230

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A directory of the best genealogy and history sites on the web.


Virtual Roots

Virtual Roots
Author: Thomas Jay Kemp
Publisher: Wilmington, Del. : Scholarly Resources
Total Pages: 312
Release: 1997
Genre: Computers
ISBN:

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Lists sites of archives, libraries, institutions, genealogical and historical societies, and family associations around the world.


Cloud Computing

Cloud Computing
Author: Thomas Erl
Publisher: Pearson
Total Pages: 802
Release: 2023-08-14
Genre: Computers
ISBN: 0138052182

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Cloud Computing: Concepts, Technology, Security & Architecture Cloud computing has become an integral and foundational part of information technology. The majority of digital business activity and technology innovation occurs with the involvement of contemporary cloud environments that provide highly sophisticated automated technology infrastructure and a vast range of technology resources. To successfully build upon, interact with, or create a cloud environment requires an understanding of its common inner mechanics, architectural layers, models, and security controls. It also requires an understanding of the business and economic factors that justify the adoption and real-world use of clouds and cloud-based products and services. In Cloud Computing: Concepts, Technology, Security & Architecture, Thomas Erl, one of the world's top-selling IT authors, teams up with cloud computing expert Eric Barceló Monroy and researchers to break down proven and mature cloud computing technologies and practices into a series of well-defined concepts, technology mechanisms, and technology architectures. Comprehensive coverage of containerization and cybersecurity topics is also included. All chapters are carefully authored from an industry-centric and vendor-neutral point of view. In doing so, the book establishes concrete, academic coverage with a focus on structure, clarity, and well-defined building blocks for mainstream cloud computing and containerization platforms and solutions. With nearly 370 figures, 40 architectural models, and 50 mechanisms, this indispensable guide provides a comprehensive education of contemporary cloud computing, containerization, and cybersecurity that will never leave your side.


CompTIA Linux+ Certification Guide

CompTIA Linux+ Certification Guide
Author: Philip Inshanally
Publisher: Packt Publishing Ltd
Total Pages: 573
Release: 2018-09-26
Genre: Computers
ISBN: 1789342538

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Master the concepts and techniques that will help you gain the LX0-103 and LX0-104 certifications on your first attempt Key FeaturesGet a clear understanding of how to achieve the Linux+ certificationExplore system architecture, shell scripts, data management, and Linux securityWork through practice and mock tests to pass both LX0-103 and LX0-104 examsBook Description Linux+ certification demonstrates technical competency and provides a broad awareness of Linux operating systems. Professionals who have achieved the Linux+ certification exhibit all-important knowledge of installation, operation, administration, and troubleshooting services. The CompTIA Linux+ Certification Guide is an overview of the certification that gives you insights into the system architecture. You’ll understand how to install and uninstall Linux distributions, followed by working with various package managers. Once you’ve grasped all this, you’ll move on to manipulating files and processes at command-line interface (CLI) and creating, monitoring, killing, restarting, and modifying processes. As you progress, you’ll be equipped to work with display managers and learn how to create, modify, and remove user accounts and groups, as well as understand how to automate tasks. The last set of chapters helps you configure dates and set up local and remote system logging. In addition to this, you’ll explore different internet protocols, along with discovering network configuration, security administration, Shell scripting, and SQL management. By the end of this book, you’ll not only have got to grips with all the modules using practice questions and mock exams, but you’ll also be well prepared to pass the LX0-103 and LX0-104 certification exams. What you will learnUnderstand the Linux system architecture Install, upgrade, and manage Linux system packagesConfigure devices and maintain the Linux filesystemManage the Shell environment, write scripts, and manage dataSet user interfaces and desktops in the Linux operating systemAutomate system admin tasks and manage essential system servicesManage SQL server on Linux and log locally and remotely with rsyslogdAdminister network and local securityWho this book is for The CompTIA Linux+ Certification Guide is for you if you want to gain the CompTIA Linux+ certificate. This guide is also for system administrators and rookie Linux professionals interested in enhancing their Linux and Shell scripting skills. No prior knowledge of Linux is needed, although some understanding of Shell scripting would be helpful.


Measuring Roots

Measuring Roots
Author: Stefano Mancuso
Publisher: Springer Science & Business Media
Total Pages: 385
Release: 2011-10-26
Genre: Science
ISBN: 3642220673

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Roots represent half of the plant body – and arguably the more interesting half. Despite its obvious importance for the whole plant, until recently our knowledge of the root apparatus was very limited, mostly due to the inadequacy of the techniques available. Recent advances in the visualization and measurement of roots have resulted in significant progress in our understanding of root architecture, growth and behaviour. In this book international experts highlight the most advanced techniques, both lab and field methods, and discuss them in detail. Measuring Roots combines academic and practical aspects of this topic, making it a universal handbook for all researchers and others interested in root-measuring methods.


The Resurgence of the State

The Resurgence of the State
Author: Myriam Dunn Cavelty
Publisher: Ashgate Publishing, Ltd.
Total Pages: 184
Release: 2007
Genre: Political Science
ISBN: 9780754649472

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Do information and communication technologies networks really lead to a weakening of the nation-state? This volume revisits the 'retreat of the state' thesis and tests its validity in the 21st century. It will intrigue the reader with expert-level analysis, providing historical context and conceptualizing trends and social dynamics.


Real Algebraic Geometry and Ordered Structures

Real Algebraic Geometry and Ordered Structures
Author: Charles N. Delzell
Publisher: American Mathematical Soc.
Total Pages: 320
Release: 2000
Genre: Mathematics
ISBN: 0821808044

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This volume contains 16 carefully refereed articles by participants in the Special Semester and the AMS Special Session on Real Algebraic Geometry and Ordered Structures held at Louisiana State University and Southern University (Baton Rouge). The 23 contributors to this volume were among the 75 mathematicians from 15 countries who participated in the special semester. Topics include the topology of real algebraic curves (Hilbert's 16th problem), moduli of real algebraic curves, effective sums of squares of real forms (Hilbert's 17th problem), efficient real quantifier elimination, subanalytic sets and stratifications, semialgebraic singularity theory, radial vector fields, exponential functions and valuations on nonarchimedean ordered fields, valued field extensions, partially ordered and lattice-ordered rings, rings of continuous functions, spectra of rings, and abstract spaces of (higher-level) orderings and real places. This volume provides a good overview of the state of the art in this area in the 1990s. It includes both expository and original research papers by top workers in this thriving field. The authors and editors strived to make the volume useful to a wide audience (including students and researchers) interested in real algebraic geometry and ordered structures-two subjects that are obviously related, but seldom brought together.


The The Complete VMware vSphere Guide

The The Complete VMware vSphere Guide
Author: Mike Brown
Publisher: Packt Publishing Ltd
Total Pages: 754
Release: 2019-11-29
Genre: Computers
ISBN: 1838980512

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Explore the benefits of VMware vSphere 6.7 to provide a powerful, flexible, and secure virtual infrastructure, and secure apps. Next, you'll pick up on how to enhance your infrastructure with high-performance storage access, such as remote direct memory access (RDMA) and Persistent Key FeaturesDesign, deploy and manage VMware vSphere virtual data centersImplement monitoring and security of VMware workloads with easeExplore tips and techniques for designing a robust virtual infrastructureBook Description vSphere 6.7 is the latest release of VMware’s industry-leading virtual cloud platform. By understanding how to manage, secure, and scale apps with vSphere 6.7, you can easily run even the most demanding of workloads. This Learning Path begins with an overview of the features of the vSphere 6.7 suite. You’ll learn how to plan and design a virtual infrastructure. You’ll also gain insights into best practices to efficiently configure, manage, and secure apps. Next, you’ll pick up on how to enhance your infrastructure with high-performance storage access, such as remote direct memory access (RDMA) and Persistent memory. The book will even guide you in securing your network with security features, such as encrypted vMotion and VM-level encryption. Finally, by learning how to apply Proactive High Availability and Predictive Distributed Resource Scheduler (DRS), you’ll be able to achieve enhanced computing, storage, network, and management capabilities for your virtual data center. By the end of this Learning Path, you’ll be able to build your own VMware vSphere lab that can run high workloads. This Learning Path includes content from the following Packt products: VMware vSphere 6.7 Data Center Design Cookbook - Third Edition by Mike Brown and Hersey CartwrightMastering VMware vSphere 6.7 - Second Edition by Martin Gavanda, Andrea Mauro, Karel Novak, and Paolo ValsecchiWhat you will learnUnderstand how to patch, upgrade, and manage a virtual environment with vSphere 6.7Identify key factors related to a vSphere designMitigate security risks and meet compliance requirements in a vSphere designCreate a vSphere conceptual design by identifying technical and business requirementsMap the logical resource design into the physical vSphere designCreate professional vSphere design documentationWho this book is for This Learning Path is for administrators, infrastructure engineers, consultants, and architects who want to design virtualized data center environments using VMware vSphere 6.x (or previous versions of vSphere and the supporting components). Basic knowledge of VMware vSphere is required to get the most out of this Learning Path.


Test-Driven Infrastructure with Chef

Test-Driven Infrastructure with Chef
Author: Stephen Nelson-Smith
Publisher: "O'Reilly Media, Inc."
Total Pages: 308
Release: 2013-10-11
Genre: Computers
ISBN: 1449372600

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Since Test-Driven Infrastructure with Chef first appeared in mid-2011, infrastructure testing has begun to flourish in the web ops world. In this revised and expanded edition, author Stephen Nelson-Smith brings you up to date on this rapidly evolving discipline, including the philosophy driving it and a growing array of tools. You’ll get a hands-on introduction to the Chef framework, and a recommended toolchain and workflow for developing your own test-driven production infrastructure. Several exercises and examples throughout the book help you gain experience with Chef and the entire infrastructure-testing ecosystem. Learn how this test-first approach provides increased security, code quality, and peace of mind. Explore the underpinning philosophy that infrastructure can and should be treated as code Become familiar with the MASCOT approach to test-driven infrastructure Understand the basics of test-driven and behavior-driven development for managing change Dive into Chef fundamentals by building an infrastructure with real examples Discover how Chef works with tools such as Virtualbox and Vagrant Get a deeper understanding of Chef by learning Ruby language basics Learn the tools and workflow necessary to conduct unit, integration, and acceptance tests


Systems Performance

Systems Performance
Author: Brendan Gregg
Publisher: Pearson Education
Total Pages: 777
Release: 2014
Genre: Business & Economics
ISBN: 0133390098

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The Complete Guide to Optimizing Systems Performance Written by the winner of the 2013 LISA Award for Outstanding Achievement in System Administration Large-scale enterprise, cloud, and virtualized computing systems have introduced serious performance challenges. Now, internationally renowned performance expert Brendan Gregg has brought together proven methodologies, tools, and metrics for analyzing and tuning even the most complex environments. Systems Performance: Enterprise and the Cloud focuses on Linux(R) and Unix(R) performance, while illuminating performance issues that are relevant to all operating systems. You'll gain deep insight into how systems work and perform, and learn methodologies for analyzing and improving system and application performance. Gregg presents examples from bare-metal systems and virtualized cloud tenants running Linux-based Ubuntu(R), Fedora(R), CentOS, and the illumos-based Joyent(R) SmartOS(TM) and OmniTI OmniOS(R). He systematically covers modern systems performance, including the "traditional" analysis of CPUs, memory, disks, and networks, and new areas including cloud computing and dynamic tracing. This book also helps you identify and fix the "unknown unknowns" of complex performance: bottlenecks that emerge from elements and interactions you were not aware of. The text concludes with a detailed case study, showing how a real cloud customer issue was analyzed from start to finish. Coverage includes - Modern performance analysis and tuning: terminology, concepts, models, methods, and techniques - Dynamic tracing techniques and tools, including examples of DTrace, SystemTap, and perf - Kernel internals: uncovering what the OS is doing - Using system observability tools, interfaces, and frameworks - Understanding and monitoring application performance - Optimizing CPUs: processors, cores, hardware threads, caches, interconnects, and kernel scheduling - Memory optimization: virtual memory, paging, swapping, memory architectures, busses, address spaces, and allocators - File system I/O, including caching - Storage devices/controllers, disk I/O workloads, RAID, and kernel I/O - Network-related performance issues: protocols, sockets, interfaces, and physical connections - Performance implications of OS and hardware-based virtualization, and new issues encountered with cloud computing - Benchmarking: getting accurate results and avoiding common mistakes This guide is indispensable for anyone who operates enterprise or cloud environments: system, network, database, and web admins; developers; and other professionals. For students and others new to optimization, it also provides exercises reflecting Gregg's extensive instructional experience.