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CentOS High Availability

by Mitja Resman

This book is targeted at system engineers and system administrators who want to upgrade their knowledge and skills in high availability and want to learn practically how to achieve high availability with CentOS Linux. You are expected to have good CentOS Linux knowledge and basic networking experience.

CentOS High Performance

by Gabriel Canepa

Create high availability clusters to enhance system performance using CentOS 7 About This Book * Master the concepts of high performance and high availability to eliminate performance bottlenecks * Maximize the uptime of services running in a CentOS 7 cluster * A step-by-step guide that will provide knowledge of methods and approaches to optimize the performance of CentOS clusters Who This Book Is For This book is targeted at system administrators: those who want a detailed, step-by-step guide to learn how to set up a high-availability CentOS 7 cluster, and those who are looking for a reference book to help them learn or refresh the necessary skills to ensure their systems and respective resources are utilized optimally. No previous knowledge of high-availability systems is needed, though the reader is expected to have at least some degree of familiarity with any spin-off of the Fedora family of Linux distributions, preferably CentOS. What You Will Learn * Install a CentOS 7 cluster and network infrastructure * Configure firewall, networking, and clustering services and settings * Set up and test a HAC (high-availability cluster) to host an Apache web server and a MariaDB database server * Monitor performance and availability * Identify bottlenecks and troubleshoot issues * Improve performance and ensure high availability In Detail CentOS is the enterprise level Linux OS, which is 100% binary compatible to Red Hat Enterprise Linux (RHEL). It acts as a free alternative to RedHat's commercial Linux offering, with only a change in the branding. A high performance cluster consists in a group of computers that work together as one set parallel, hence minimizing or eliminating the downtime of critical services and enhancing the performance of the application. Starting with the basic principles of clustering, you will learn the necessary steps to install a cluster with two CentOS 7 servers. We will then set up and configure the basic required network infrastructure and clustering services. Further, you will learn how to take a proactive approach to the split-brain issue by configuring the failover and fencing of the cluster as a whole and the quorum of each node individually. Further, we will be setting up HAC and HPC clusters as a web server and a database server. You will also master the art of monitoring performance and availability, identifying bottlenecks, and exploring troubleshooting techniques. At the end of the book, you'll review performance-tuning techniques for the recently installed cluster, test performance using a payload simulation, and learn the necessary skills to ensure that the systems, and the corresponding resources and services, are being utilized to their best capacity. Style and approach An easy-to-follow and step-by-step guide with hands-on instructions to set up real-world simple cluster scenarios that will start you on the path to building more complex applications on your own.

CentOS System Administration Essentials

by Andrew Mallett

If you are a Linux administrator who is looking to gain knowledge that differentiates yourself from the crowd, then this is the book for you. Beginners who have a keen interest to learn more about Linux administration will also progress quickly with this resourceful learning guide.

Century 21 Computer Applications and Keyboarding (7th Edition)

by Jack P. Hoggatt Jon A. Shank Jerry W. Robinson

This 7th edition is a revision of Century 21 Keyboarding & Information Processing which reflects the changing keyboarding course. The complete course contains 150 keyboarding and word processing lessons, 54 computer apps lessons, and 15 new key learning lessons (in the Resources section).

Century 21™ Computer Applications and Keyboarding, Comprehensive, Lessons 1-150

by Jack P. Hoggatt Jon A. Shank

Provide students with the best in keyboarding education from the proven keyboarding leader--now stronger than ever! This latest edition helps to prepare students for a lifetime of keyboarding success with a complete family of proven solutions updated for a new decade of business challenges. Students tap into the latest keyboarding technology, learn to master computer applications, and increase communication skills with the proven presentation from this best-selling text. Trust the leader who has taught more than 85 million to type--now bringing 100 years of publishing experience and a century of innovations together in a complete line of keyboarding solutions for you.

Century 21® Computer Applications and Keyboarding, Comprehensive, Lessons 1-170

by Jack P. Hoggatt Jon A. Shank

Provide your students with the best in keyboarding education from the proven keyboarding leader--now stronger than ever! This latest edition of CENTURY 21 COMPUTER APPLICATIONS AND KEYBOARDING helps students prepare for a lifetime of keyboarding success with innovative solutions updated to reflect today's business challenges. Students tap into the latest keyboarding technology, learn to master computer applications using Microsoft Office 2007, and increase communication skills with relevant activities throughout this best-selling text. Trust the leader who has taught more than 85 million people to type--bringing 100 years of publishing experience and a century of innovations together in a complete line of keyboarding solutions.

Century 21® Computer Applications and Keyboarding, Comprehensive, Lessons 1-170

by Jack P. Hoggatt Jon A. Shank

Provide your students with the best in keyboarding education from the proven keyboarding leader--now stronger than ever! This latest edition of CENTURY 21 COMPUTER APPLICATIONS AND KEYBOARDING helps students prepare for a lifetime of keyboarding success with innovative solutions updated to reflect today's business challenges. Students tap into the latest keyboarding technology, learn to master computer applications using Microsoft Office 2007, and increase communication skills with relevant activities throughout this best-selling text. Trust the leader who has taught more than 85 million people to type--bringing 100 years of publishing experience and a century of innovations together in a complete line of keyboarding solutions.

Century 21™ Computer Keyboarding: Essentials, Lessons 1-75

by Jack P. Hoggatt Jon A. Shank

Century 21 Computer Keyboarding gives you what you are looking for in a one semester course on new key learning, document formatting and word processing. This text is a combination of 50 lessons of key learning/ technique mastery and 25 lessons on word processing/document formatting.

Century 21® Computer Keyboarding, Essentials, Lessons 1-80

by Jack P. Hoggatt Jon A. Shank

CENTURY 21 COMPUTER KEYBOARDING provides everything you need for in a one-semester course covering new-key learning, document formatting, and word processing. This latest edition helps students prepare for a lifetime of keyboarding success with innovative solutions updated to reflect today's business challenges. Trust the leader who has taught more than 85 million people to type--bringing 100 years of publishing experience and a century of innovations together in a complete line of keyboarding solutions. <P> Advisory: Bookshare has learned that this book offers only partial accessibility. We have kept it in the collection because it is useful for some of our members. To explore further access options with us, please contact us through the Book Quality link on the right sidebar. Benetech is actively working on projects to improve accessibility issues such as these.

Century 21® Jr.: Computer Applications with Keyboarding

by Jack P. Hoggatt Jon A. Shank James R. Smith

Just getting started in the computer world? This introductory text, CENTURY 21(tm), JR. COMPUTER APPLICATIONS WITH KEYBOARDING, 3E is the perfect companion for navigation of computer basics, file management, the Internet, keyboarding, word processing, desktop publishing, spreadsheets, presentations, and databases. CENTURY 21, JR. provides step-by-step guidance, with engaging activities. Units are divided into easy-to-manage chapters and projects will help students learn the features of Microsoft Office 2013 and 365.

Century 21® Jr., Input Technologies & Computer Applications

by Jack P. Hoggatt Jon A. Shank Karl Barksdale

Looking for a solution to get your students started in the computer world? This introductory text, CENTURY 21, JR. INPUT TECHNOLOGIES AND COMPUTER APPLICATIONS, 2e is the perfect companion for navigation of computer basics, file management, the Internet, keyboarding, handwriting recognition, speech recognition, tablet PCs, word processing, desktop publishing, spreadsheets, presentations, databases, HTML programming, and Web pages. CENTURY 21, JR. provides step-by-step guidance, with engaging activities labeled as Learn, Practice, and Apply. Units are divided into easy-to-manage chapters and projects will help students learn the features of Microsoft Office 2007.

Ceph Cookbook

by Karan Singh

Over 100 effective recipes to help you design, implement, and manage the software-defined and massively scalable Ceph storage system About This Book * Implement a Ceph cluster successfully and gain deep insights into its best practices * Harness the abilities of experienced storage administrators and architects, and run your own software-defined storage system * This comprehensive, step-by-step guide will show you how to build and manage Ceph storage in production environment Who This Book Is For This book is aimed at storage and cloud system engineers, system administrators, and technical architects who are interested in building software-defined storage solutions to power their cloud and virtual infrastructure. If you have basic knowledge of GNU/Linux and storage systems, with no experience of software defined storage solutions and Ceph, but eager to learn this book is for you. What You Will Learn * Understand, install, configure, and manage the Ceph storage system * Get to grips with performance tuning and benchmarking, and gain practical tips to run Ceph in production * Integrate Ceph with OpenStack Cinder, Glance, and nova components * Deep dive into Ceph object storage, including s3, swift, and keystone integration * Build a Dropbox-like file sync and share service and Ceph federated gateway setup * Gain hands-on experience with Calamari and VSM for cluster monitoring * Familiarize yourself with Ceph operations such as maintenance, monitoring, and troubleshooting * Understand advanced topics including erasure coding, CRUSH map, cache pool, and system maintenance In Detail Ceph is a unified, distributed storage system designed for excellent performance, reliability, and scalability. This cutting-edge technology has been transforming the storage industry, and is evolving rapidly as a leader in software-defined storage space, extending full support to cloud platforms such as Openstack and Cloudstack, including virtualization platforms. It is the most popular storage backend for Openstack, public, and private clouds, so is the first choice for a storage solution. Ceph is backed by RedHat and is developed by a thriving open source community of individual developers as well as several companies across the globe. This book takes you from a basic knowledge of Ceph to an expert understanding of the most advanced features, walking you through building up a production-grade Ceph storage cluster and helping you develop all the skills you need to plan, deploy, and effectively manage your Ceph cluster. Beginning with the basics, you'll create a Ceph cluster, followed by block, object, and file storage provisioning. Next, you'll get a step-by-step tutorial on integrating it with OpenStack and building a Dropbox-like object storage solution. We'll also take a look at federated architecture and CephFS, and you'll dive into Calamari and VSM for monitoring the Ceph environment. You'll develop expert knowledge on troubleshooting and benchmarking your Ceph storage cluster. Finally, you'll get to grips with the best practices to operate Ceph in a production environment. Style and approach This step-by-step guide is filled with practical tutorials, making complex scenarios easy to understand.

CFEngine 3 Beginner’s Guide

by Rajneesh

Part of Packt's Beginner's Guide series, this book guides you through setting up Cfengine to maximizing its potential. This book focuses on getting you through all the major learning points in a smooth, logical order. You'll also learn how to avoid some common pitfalls. If you are a System Administrator or Configuration manager with a growing infrastructure and if you are looking for a dependable tool to manage your infrastructure, then this book is for you. If your infrastructure is already big with hundreds and thousands of nodes and you are looking for a secure, versatile and stable configuration management tool, you will still find this book handy. You don't need any prior experience of Cfengine to follow this book.

CGI Manual of Style

by Robert Mcdaniel

Anyone can put a site up on the Web-but what makes people come back again and again? This indispensable reference is your guide to CGI (Common Gateway Interface), the key to tailoring your site to suit your visitors' needs by controlling and analyzing the flow of information on your site. No experience with C or Perl is assumed. Real-world examples are presented in easy-to follow tutorials.

CGI Programming with Perl, 2nd Edition

by Gunther Birznieks Scott Guelich Shishir Gundavaram

Programming on the Web today can involve any of several technologies, but the Common Gateway Interface (CGI) has held its ground as the most mature method--and one of the most powerful ones--of providing dynamic web content. CGI is a generic interface for calling external programs to crunch numbers, query databases, generate customized graphics, or perform any other server-side task. There was a time when CGI was the only game in town for server-side programming; today, although we have ASP, PHP, Java servlets, and ColdFusion (among others), CGI continues to be the most ubiquitous server-side technology on the Web. CGI programs can be written in any programming language, but Perl is by far the most popular language for CGI. Initially developed over a decade ago for text processing, Perl has evolved into a powerful object-oriented language, while retaining its simplicity of use. CGI programmers appreciate Perl's text manipulation features and its CGI.pm module, which gives a well-integrated object-oriented interface to practically all CGI-related tasks. While other languages might be more elegant or more efficient, Perl is still considered the primary language for CGI. CGI Programming with Perl, Second Edition, offers a comprehensive explanation of using CGI to serve dynamic web content. Based on the best-selling CGI Programming on the World Wide Web, this edition has been completely rewritten to demonstrate current techniques available with the CGI.pm module and the latest versions of Perl. The book starts at the beginning, by explaining how CGI works, and then moves swiftly into the subtle details of developing CGI programs. Topics include: Incorporating JavaScript for form validation Controlling browser caching Making CGI scripts secure in Perl Working with databases Creating simple search engines Maintaining state between multiple sessions Generating graphics dynamically Improving performance of your CGI scripts

CGI Programming with Perl, 2nd Edition

by Gunther Birznieks Scott Guelich Shishir Gundavaram

<p>The Common Gateway Interface (CGI) is one of the most powerful methods of providing dynamic content on the Web. CGI is a generic interface for calling external programs to crunch numbers, query databases, generate customized graphics, or perform any other server-side task. Based on the best-selling <i>CGI Programming on the World Wide Web,</i> this edition has been completely rewritten to demonstrate current techniques available with the CGI.pm module and the latest versions of Perl. Topics include incorporating JavaScript for form validation, controlling browser caching, making CGI scripts secure in Perl, working with databases, creating simple search engines, maintaining state between multiple sessions, generating graphics dynamically, and improving performance of CGI scripts.</p>

The Challenge of Violent Drug-Trafficking Organizations

by Christopher Paul Agnes Gereben Schaefer Colin P. Clarke

A RAND team conducted a Delphi expert elicitation exercise, the results of which offer an assessment of the contemporary security situation in Mexico through the lens of existing RAND research on urban instability and unrest, historical insurgencies, and defense-sector reform. Assessment scorecards from these projects were used to obtain input from the expert panel and to guide the resulting discussion.

Challenging the Chip: Labor Rights and Environmental Justice in the Global Electronics Industry

by Ted Smith David Allan Sonnenfeld David N. Pellow

From Silicon Valley in California to Silicon Glen in Scotland, from Silicon Island in Taiwan to Silicon Paddy in China, the social, economic, and ecological effects of the international electronics industry are widespread. The production of electronic and computer components contaminates air, land, and water around the globe. As this eye-opening book reveals, the people who suffer the consequences are largely poor, female, immigrant, and minority. Challenging the Chip is the first comprehensive examination of the impacts of electronics manufacturing on workers and local environments across the planet. Contributors to this pioneering volume include many of the world's most articulate, passionate and progressive visionaries, scholars and advocates. Here they not only document the unsustainable and often devastating practices of the global electronics industry but also chronicle creative ways in which activists, government agencies, and others have attempted to reform the industry-through resistance, persuasion, and regulation.

Change by Design: How Design Thinking Transforms Organizations and Inspires Innovation

by Tim Brown

The myth of innovation is that brilliant ideas leap fully formed from the minds of geniuses. In reality, most innovations are borne from rigor and discipline.

Change.edu

by Andrew S Rosen

It's no wonder American higher education is facing a crisis.While low-income students can't find a spot in their local community colleges for lack of funding, public four-year universities are spending staggering sums on luxurious residence halls, ever-bigger football stadiums, and obscure research institutes. We have cosseted our most advantaged students even as we deny access to the working adults who urgently need higher education to advance their careers and our economy. In Change.edu: Rebooting for the new talent economy Andrew S. Rosen clearly and entertainingly details how far the American higher education system has strayed from the goals of access, quality, affordability, and accountability that should characterize our system, and offers a prescription to restore American educational pre-eminence.To change, our system will have to end its reflexive opposition to anything new and different. Rosen describes how each new wave of innovation and expansion of educational access-- starting with the founding of Harvard in 1636, and continuing with the advent of land-grant colleges in the 19th century, community colleges in the 20th century and private sector colleges over the last two decades--has been met with misunderstanding and ridicule. When colleges like the University of California, Cornell and Purdue were founded, they were scorned as "pretenders to the title of university" - language that tracks later criticisms of community colleges and most recently for-profit colleges.Avoiding that condescension is just one of the reasons colleges have come under the sway of "Harvard Envy" - schools that were founded to expand access feel an inexorable tug to become more prestigious and exclusive. Even worse, the competition for the best students has led universities to turn themselves into full-fledged resorts; they've built climbing walls, French bistros and 20-person hot-tubs to entice students to their campuses.How can America address an incentive system in higher education that is mismatched to the challenges of the years ahead? In Change.edu, Rosen outlines "seven certainties" of education in the coming 25 years, and presents an imperative for how our system must prepare for the coming changes. He proposes a new "playbook" for dealing with the change ahead, one that will enable American higher education to regain its global primacy and be a catalyst for economic growth in the 21st century.

Changing Cultures in Higher Education

by Ulf-Daniel Ehlers Dirk Schneckenberg

More and more educational scenarios and learning landscapes are developed using blogs, wikis, podcasts and e-portfolios. Web 2.0 tools give learners more control, by allowing them to easily create, share or reuse their own learning materials, and these tools also enable social learning networks that bridge the border between formal and informal learning. However, practices of strategic innovation of universities, faculty development, assessment, evaluation and quality assurance have not fully accommodated these changes in technology and teaching. Ehlers and Schneckenberg present strategic approaches for innovation in universities. The contributions explore new models for developing and engaging faculty in technology-enhanced education, and they detail underlying reasons for why quality assessment and evaluation in new - and often informal - learning scenarios have to change. Their book is a practical guide for educators, aimed at answering these questions. It describes what E-learning 2.0 is, which basic elements of Web 2.0 it builds on, and how E-learning 2.0 differs from Learning 1.0. The book also details a number of quality methods and examples, such as self-assessment, peer-review, social recommendation, and peer-learning, using illustrative cases and giving practical recommendations. Overall, it offers a step-by-step guide for educators so that they can choose their own quality assurance or assessment methods, or develop their own evaluation methodology for specific learning scenarios. The book addresses everyone involved in higher education - university leaders, chief information officers, change and quality assurance managers, and faculty developers. Pedagogical advisers and consultants will find new insights and practices for the integration and management of novel learning technologies in higher education. The volume fosters in lecturers and teachers a sound understanding of the need and strategy for change, and it provides them with practical recommendations on competence and quality methodologies.

The Changing Nature of Telecommunications/Information Infrastructure

by Steering Committee on the Changing Nature of Telecommunications/Information Infrastructure

Advancement of telecommunications and information infrastructure occurs largely through private investment. The government affects the rate and direction of this progress through regulation and public investment. This book presents a range of positions and perspectives on those two classes of policy mechanism, providing a succinct analysis followed by papers prepared by experts in telecommunications policy and applications.

Channel Codes

by William E. Ryan Shu Lin

Channel coding lies at the heart of digital communication and data storage, and this detailed introduction describes the core theory as well as decoding algorithms, implementation details, and performance analyses. Known for their writing clarity, Professors Ryan and Lin provide the latest information on modern channel codes, including turbo and low-density parity-check (LDPC) codes. They also present detailed coverage of BCH codes, Reed-Solomon codes, convolutional codes, finite geometry codes, and product codes, providing a one-stop resource for both classical and modern coding techniques. Assuming no prior knowledge in the field of channel coding, the opening chapters begin with basic theory to introduce newcomers to the subject. Later chapters then extend to advanced topics such as code ensemble performance analyses and algebraic code design. 250 varied and stimulating end-of-chapter problems are also included to test and enhance learning, making this an essential resource for students and practitioners alike.

Chaos Monkeys: Obscene Fortune and Random Failure in Silicon Valley

by Antonio Garcia Martinez

Liar's Poker meets The Social Network in an irreverent exposé of life inside the tech bubble, from industry provocateur Antonio García Martínez, a former Twitter advisor, Facebook product manager and startup founder/CEO.The reality is, Silicon Valley capitalism is very simple:Investors are people with more money than time.Employees are people with more time than money.Entrepreneurs are the seductive go-between.Marketing is like sex: only losers pay for it. Imagine a chimpanzee rampaging through a datacenter powering everything from Google to Facebook. Infrastructure engineers use a software version of this "chaos monkey" to test online services' robustness--their ability to survive random failure and correct mistakes before they actually occur. Tech entrepreneurs are society's chaos monkeys, disruptors testing and transforming every aspect of our lives, from transportation (Uber) and lodging (AirBnB) to television (Netflix) and dating (Tinder). One of Silicon Valley's most audacious chaos monkeys is Antonio García Martínez.After stints on Wall Street and as CEO of his own startup, García Martínez joined Facebook's nascent advertising team, turning its users' data into profit for COO Sheryl Sandberg and chairman and CEO Mark "Zuck" Zuckerberg. Forced out in the wake of an internal product war over the future of the company's monetization strategy, García Martínez eventually landed at rival Twitter. He also fathered two children with a woman he barely knew, committed lewd acts and brewed illegal beer on the Facebook campus (accidentally flooding Zuckerberg's desk), lived on a sailboat, raced sport cars on the 101, and enthusiastically pursued the life of an overpaid Silicon Valley wastrel.Now, this gleeful contrarian unravels the chaotic evolution of social media and online marketing and reveals how it is invading our lives and shaping our future. Weighing in on everything from startups and credit derivatives to Big Brother and data tracking, social media monetization and digital "privacy," García Martínez shares his scathing observations and outrageous antics, taking us on a humorous, subversive tour of the fascinatingly insular tech industry. Chaos Monkeys lays bare the hijinks, trade secrets, and power plays of the visionaries, grunts, sociopaths, opportunists, accidental tourists, and money cowboys who are revolutionizing our world. The question is, will we survive?

Showing 1,601 through 1,625 of 12,169 results

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