A Practical Guide to Content Delivery Networks PDF Download

Author: Gilbert Held
Publisher: CRC Press
ISBN: 1439835896
Category : Computers
Languages : en
Pages : 296

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Book Description
Following in the tradition of its popular predecessor, A Practical Guide to Content Delivery Networks, Second Edition offers an accessible and organized approach to implementing networks capable of handling the increasing data requirements of today's always on mobile society. Describing how content delivery networks (CDN) function, it provides

Author: Charlie Arp
Publisher: Rowman & Littlefield
ISBN: 1538104563
Category : Language Arts & Disciplines
Languages : en
Pages : 355

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Book Description
Archival Basics for Historic Record Collections is an introduction to the concepts, policies, infrastructure and tasks needed to collect, preserve and make archival collections available to researchers. The book is based on content presented in workshops by the Council of State Archivists and presented in an on-line course by the American Association of State and Local History since 2003. Arp focuses on the discreet tasks necessary to manage archival collections. This is a practical, how-to book on managing archival collections designed for those who have responsibility for such collections but lack formal archival training. The book begins by defining historic records, archival collections and the differences between archives, libraries and museums while identifying the steps needed to manage archival collections. It then looks at collecting archival items including creating a collections policy, documenting the acquisition of archival items and the steps needed to bring those items into an archives. It discusses arranging, preserving and describing archival collections so researchers can find the information they seek. Next, it goes over what is needed to store, protect, and make archival collections available to researchers. The last chapters contemplates the policies, skills and infrastructure needed to successfully manage digital records and looks at creating digital copies of analog records to promote their use. The book provides templates, questionnaires and examples to enable the reader to create customized archival policies and procedures that accommodate the particular circumstances they find themselves in. The book also contains exercises and quizzes designed to reinforce the retention and understanding of critical concepts. In addition to examples it has lists of additional resources so those who want more detailed information on particular topics can find it. This book is not the only reference book needed by those doing archival work, but it should be the first book they need.

Author: Jeffrey S. Beasley
Publisher: Pearson Education
ISBN: 0133354008
Category : Computers
Languages : en
Pages : 1244

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Book Description
A Practical Guide to Advanced Networking, Third Edition takes a pragmatic, hands-on approach to teaching advanced modern networking concepts from the network administrator’s point of view. Thoroughly updated for the latest networking technologies and applications, the book guides you through designing, configuring, and managing campus networks, connecting networks to the Internet, and using the latest networking technologies. The authors first show how to solve key network design challenges, including data flow, selection of network media, IP allocation, subnetting, and configuration of both VLANs and Layer 3 routed networks. Next, they illuminate advanced routing techniques using RIP/RIPv2, OSPF, IS-IS, EIGRP, and other protocols, and show how to address common requirements such as static routing and route redistribution. You’ll find thorough coverage of configuring IP-based network infrastructure, and using powerful WireShark and NetFlow tools to analyze and troubleshoot traffic. A full chapter on security introduces best practices for preventing DoS attacks, configuring access lists, and protecting routers, switches, VPNs, and wireless networks. This book’s coverage also includes IPv6, Linux-based networking, Juniper routers, BGP Internet routing, and Voice over IP (VoIP). Every topic is introduced in clear, easy-to-understand language; key ideas are reinforced with working examples, and hands-on exercises based on powerful network simulation software. Key Pedagogical Features NET-CHALLENGE SIMULATION SOFTWARE provides hands-on experience with advanced router and switch commands, interface configuration, and protocols–now including RIPv2 and IS-IS WIRESHARK NETWORK PROTOCOL ANALYZER TECHNIQUES and EXAMPLES of advanced data traffic analysis throughout PROVEN TOOLS FOR MORE EFFECTIVE LEARNING, including chapter outlines and summaries WORKING EXAMPLES IN EVERY CHAPTER to reinforce key concepts and promote mastery KEY TERMS DEFINITIONS, LISTINGS, and EXTENSIVE GLOSSARY to help you master the language of networking QUESTIONS, PROBLEMS, and CRITICAL THINKING QUESTIONS to help you deepen your understanding CD-ROM includes Net-Challenge Simulation Software and the Wireshark Network Protocol Analyzer Software examples.

Author: Andy Ash
Publisher: Taylor & Francis
ISBN: 1040011705
Category : Education
Languages : en
Pages : 350

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Book Description
A Practical Guide to Teaching Art and Design in the Secondary School bridges the gap between key themes in Art and Design education theory, professional practice and the classroom. This practical and accessible book introduces methods for the delivery of engaging Art and Design lessons that safely and meaningfully address the current key issues in the subject. Each chapter includes tasks to support trainee and early career teachers in implementing, reviewing and adapting their teaching. Chapters cover a range of core approaches to the curriculum such as powerful knowledge for the Art and Design teacher, the place of Art History in the curriculum and critical thinking in Art and Design learning. In addition, emerging cultural and political issues (such as decolonising the Art and Design curriculum, gender and sexuality, anti-ablism, sustainability and well-being) are explored in ways designed to guide teachers towards applying their own unique teaching style. Linking directly to the planning and delivery of the subject in Key Stages 3, 4 and 5, the book is divided into three sections: Imaginative Curiosity for the Art and Design Teacher Epistemological Curiosity for Teachers and Learners Critical Curiosity in the Art and Design Classroom Designed to be used independently or alongside the essential textbook Learning to Teach Art and Design in the Secondary School, this book is packed with practical strategies, teaching ideas and activities in every chapter. The book provides everything trainee and early career teachers need to reflect on and develop their teaching practice, helping them to plan lessons across the subject in a variety of teaching situations.

Author: Levent Sevgi
Publisher: Artech House
ISBN: 1630814008
Category : Science
Languages : en
Pages : 321

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Book Description
This practical new resource explores the fundamentals of EMC engineering and examines the concepts and underpinnings of electromagnetics. This book highlights the procedures from design to market for both technical and non-technical issues, including market control, accreditation, calibration, EMC tests and measurement, and EMC protection. Basic electrical engineering theories, Maxwell equations, EM scattering, diffraction and propagation in the electromagnetic model are presented. The circuit model, including lumped parameter circuit elements, two-port circuit definitions, grounding, common and differential model currents, and microstripline circuits are explored. This book also covers antennas and antenna calibration, including communication antennas, normalized site attenuation (NSA), loop antennas, and loop antenna calibration (LAC). Noise and frequency analysis on fundamental electromagnetic signals, noise, and transforms is explained. Readers find insight into EMC test and measurement environments and devices. Time-saving MATLAB code is included in this resource to help engineers with their projects in the field.

Author: Michele Haapamäki
Publisher: Bloomsbury Publishing
ISBN: 0857724010
Category : History
Languages : en
Pages : 272

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Book Description
In the first half of the 20th century the possibility of flight opened up entirely new avenues of thought and exploration. In the age of H.G. Wells and Biggles, the opening up of the air to balloons and planes- the Royal Flying Corps was founded in 1912 - appealed to concepts of courage and bravery which would be both encouraged and undermined by the experiences of World War I. The sky also held new terrors for everyday people who were now within reach of an airborne enemy- these fears included the possibilities of bombing, poison gas, surveillance and social contol. This duality of fear and enthusiasm drove the Air Raid Precaution movement, while vocal elements in the press and in parliament called for radical plans to cope with apocalyptic scenarios. Here, Michele Haapamaki charts the history of flight and of war in the air in the early twentieth century, addressing the key issues of interwar historiography such as patriotism, fear, masculinity and propaganda.

Author: Vinit Jain
Publisher: Cisco Press
ISBN: 013443658X
Category : Computers
Languages : en
Pages : 1646

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Book Description
The definitive guide to troubleshooting today’s complex BGP networks This is today’s best single source for the techniques you need to troubleshoot BGP issues in modern Cisco IOS, IOS XR, and NxOS environments. BGP has expanded from being an Internet routing protocol and provides a scalable control plane for a variety of technologies, including MPLS VPNs and VXLAN. Bringing together content previously spread across multiple sources, Troubleshooting BGP describes BGP functions in today’s blended service provider and enterprise environments. Two expert authors emphasize the BGP-related issues you’re most likely to encounter in real-world deployments, including problems that have caused massive network outages. They fully address convergence and scalability, as well as common concerns such as BGP slow peer, RT constraint filtering, and missing BGP routes. For each issue, key concepts are presented, along with basic configuration, detailed troubleshooting methods, and clear illustrations. Wherever appropriate, OS-specific behaviors are described and analyzed. Troubleshooting BGP is an indispensable technical resource for all consultants, system/support engineers, and operations professionals working with BGP in even the largest, most complex environments. · Quickly review the BGP protocol, configuration, and commonly used features · Master generic troubleshooting methodologies that are relevant to BGP networks · Troubleshoot BGP peering issues, flapping peers, and dynamic BGP peering · Resolve issues related to BGP route installation, path selection, or route policies · Avoid and fix convergence problems · Address platform issues such as high CPU or memory usage · Scale BGP using route reflectors, diverse paths, and other advanced features · Solve problems with BGP edge architectures, multihoming, and load balancing · Secure BGP inter-domain routing with RPKI · Mitigate DDoS attacks with RTBH and BGP Flowspec · Understand common BGP problems with MPLS Layer 3 or Layer 2 VPN services · Troubleshoot IPv6 BGP for service providers, including 6PE and 6VPE · Overcome problems with VXLAN BGP EVPN data center deployments · Fully leverage BGP High Availability features, including GR, NSR, and BFD · Use new BGP enhancements for link-state distribution or tunnel setup This book is part of the Networking Technology Series from Cisco Press, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

Author: Susan R. Grayzel
Publisher: Cambridge University Press
ISBN: 1108870155
Category : History
Languages : en
Pages : 289

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Book Description
The First World War introduced the widespread use of lethal chemical weapons. In its aftermath, the British government, like that of many states, had to prepare civilians to confront such weapons in a future war. Over the course of the interwar period, it developed individual anti-gas protection as a cornerstone of civil defence. Susan R. Grayzel traces the fascinating history of one object – the civilian gas mask – through the years 1915–1945 and, in so doing, reveals the reach of modern, total war and the limits of the state trying to safeguard civilian life in an extensive empire. Drawing on records from Britain's Colonial, Foreign, War and Home Offices and other archives alongside newspapers, journals, personal accounts and cultural sources, she connects the histories of the First and Second World Wars, combatants and civilians, men and women, metropole and colony, illuminating how new technologies of warfare shaped culture, politics, and society.

Author: Arthur Ward
Publisher: Pen and Sword
ISBN: 1783831545
Category : History
Languages : en
Pages : 210

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Book Description
In WW2 information leaflets and posters proliferated. Soldiers were bombarded with Field Regulations, airmen with the latest updates about airborne early warning, bomb sights and radio navigation and sailors with material that helped them identify enemy aircraft and submarines and told them how to operate the new ship board weapons to destroy them.??An abundance of familiar slogans exhorted the population to do the utmost: 'Go To IT!', 'Come Into The Factories', 'Keep Calm and Carry On', 'Dig For Victory', 'Lend A Hand on the Land', 'Walk When You Can'. Other messages warned of the consequences of irresponsible behaviour: 'Careless Talk Cost Lives', 'Loose Lips Sink Ships', 'Keep It Under Your Hat' and 'Be Like Dad, Keep Mum', the latter illustrating just how much social mores have, thankfully, changed in the last 75 years.??This book is concerned with the plethora of printed ephemera that was designed to educate, instruct, inform and entertain. Such original material can still be bought and is easy to store ‰ÛÒ the posters also often making attractive items for display ‰ÛÒ but as with all other authentic historical material supply is finite and examples of wartime publications in first class condition command a high price. This is the first time a single volume has been dedicated entirely to a long overlooked component of wartime collectables. It is designed to complement books which focus on traditional militaria such as uniforms, equipment and regalia and is intended to reveal just how much material was produced, across the board, by each of the warring nations. It will advise enthusiasts about what was produced, what is still available and where to find it and, importantly, how to conserve and store such vintage printed items.

Author: Mark G. Sobell
Publisher: Prentice Hall
ISBN: 0133927350
Category : Computers
Languages : en
Pages : 1402

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Book Description
The Most Complete, Easy-to-Follow Guide to Ubuntu Linux “As an in-depth guide to Ubuntu, this book does an exceptional job of covering everything from using the Unity desktop to exploring key server configurations.” –Elizabeth K. Joseph, Systems Administrator & Ubuntu Community Member The #1 Ubuntu resource, fully updated for Ubuntu 14.04 (Trusty Tahr)–the Long Term Support (LTS) release Canonical will support into 2019 Extensive new coverage of installation, security, virtualization, MariaDB, Python Programming, and much more Updated JumpStarts help you set up many complex servers in minutes Hundreds of up-to-date examples, plus four updated indexes deliver fast access to reliable answers Mark Sobell’s A Practical Guide to Ubuntu Linux®, Fourth Edition, is the most thorough and up-to-date reference to installing, configuring, securing, and working with Ubuntu desktops and servers. This edition has been fully updated for Ubuntu 14.04 (Trusty Tahr), a milestone LTS (Long Term Support) release, which Canonical will support on both desktops and servers into 2019. Sobell walks you through every essential feature and technique, from installing Ubuntu to working with the latest Ubuntu Unity desktop, and from configuring servers and monitoring networks to handling day-to-day system administration. His exceptionally clear explanations demystify everything from Apache, Samba, and postfix, to ufw, virtualization, and MariaDB/MySQL database management. PLUS a new chapter on programming in Python, today’s most popular system automation tool! Fully updated JumpStart sections quickly help you get complex servers running–often in minutes. You’ll also find up-to-date guidance on new LPI and CompTIA Linux certification pathways for Linux professionals. Sobell draws on his immense Linux knowledge to explain both the “hows” and the “whys” of Ubuntu. He’s taught hundreds of thousands of readers and never forgets what it’s like to be new to Linux. Whether you’re a user, administrator, or programmer, you’ll find everything you need here–now, and for years to come. The world’s most practical Ubuntu Linux book is now even more useful! This book delivers Completely revamped installation coverage reflecting Ubuntu 14.04’s improved ubiquity (graphical) and debian-installer (textual) installers Updated JumpStarts for quickly setting up Samba, Apache, postfix, FTP, NFS, CUPS, OpenSSH, DNS, and other complex servers Revamped and updated explanations of the ufw, gufw, and iptables firewall tools An all-new chapter on creating VMs (virtual machines) locally and in the cloud New coverage of the MariaDB open source plug-in replacement for MySQL Comprehensive networking coverage, including DNS/BIND, NFS, NIS, FTP, LDAP, and Cacti network monitoring Expert coverage of Internet server configuration and customization, including apache2 (Web) and postfix (mail) A new chapter covering state-of-the-art security techniques, including sudo, cryptography, hash functions, SSL certificates, plus a section on using GPG (GNU Privacy Guard) to protect documents in transit Deep coverage of essential administration tasks–from managing users to CUPS printing, and from configuring LANs and LDAP to building VMs (virtual machines) Complete instructions on keeping systems up to date using apt-get, dpkg, and other tools And much more . . . including a revised 500+ term glossary and four indexes