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Improve the performance of your network using the caching and access control capabilities of Squid.
A guide to implementing DIY security solutions and readily available technologies to protect home and small-office networks from attack. This book is an easy-to-follow series of tutorials that will lead readers through different facets of protecting household or small-business networks from cyber attacks. You’ll learn how to use pfSense to build a firewall, lock down wireless, segment a network into protected zones, configure a VPN (virtual private network) to hide and encrypt network traffic and communications, set up proxies to speed up network performance and hide the source of traffic, block ads, install and configure an antivirus, back up your data securely, and even how to monitor your network for unauthorized activity and alert you to intrusion.
The emergence of the cloud and modern, fast corporate networks demands that you perform judicious balancing of computational loads. Practical Load Balancing presents an entire analytical framework to increase performance not just of one machine, but of your entire infrastructure. Practical Load Balancing starts by introducing key concepts and the tools you'll need to tackle your load-balancing issues. You'll travel through the IP layers and learn how they can create increased network traffic for you. You'll see how to account for persistence and state, and how you can judge the performance of scheduling algorithms. You'll then learn how to avoid performance degradation and any risk of the sudden disappearance of a service on a server. If you're concerned with running your load balancer for an entire network, you'll find out how to set up your network topography, and condense each topographical variety into recipes that will serve you in different situations. You'll also learn about individual servers, and load balancers that can perform cookie insertion or improve your SSL throughput. You'll also explore load balancing in the modern context of the cloud. While load balancers need to be configured for high availability once the conditions on the network have been created, modern load balancing has found its way into the cloud, where good balancing is vital for the very functioning of the cloud, and where IPv6 is becoming ever more important. You can read Practical Load Balancing from end to end or out of sequence, and indeed, if there are individual topics that interest you, you can pick up this book and work through it once you have read the first three chapters.
This book constitutes the refereed proceedings of the 5th International Symposium on Parallel and Distributed Processing and Applications, ISPA 2007, held in Niagara Falls, Canada, in August 2007. The 83 revised full papers presented together with three keynote are cover algorithms and applications, architectures and systems, datamining and databases, fault tolerance and security, middleware and cooperative computing, networks, as well as software and languages.
Starts with the basics of Red Hat, the leading Linux distribution in the U.S., such as network planning and Red Hat installation and configuration Offers a close look at the new Red Hat Enterprise Linux 4 and Fedora Core 4 releases New chapters cover configuring a database server, creating a VNC server, monitoring performance, providing Web services, exploring SELinux security basics, and exploring desktops Demonstrates how to maximize the use of Red Hat Network, upgrade and customize the kernel, install and upgrade software packages, and back up and restore the file system The four CDs contain the full Fedora Core 4 distribution
Internet Infrastructure: Networking, Web Services, and Cloud Computing provides a comprehensive introduction to networks and the Internet from several perspectives: the underlying media, the protocols, the hardware, the servers, and their uses. The material in the text is divided into concept chapters that are followed up with case study chapters that examine how to install, configure, and secure a server that offers the given service discussed. The book covers in detail the Bind DNS name server, the Apache web server, and the Squid proxy server. It also provides background on those servers by discussing DNS, DHCP, HTTP, HTTPS, digital certificates and encryption, web caches, and the variety of protocols that support web caching. Introductory networking content, as well as advanced Internet content, is also included in chapters on networks, LANs and WANs, TCP/IP, TCP/IP tools, cloud computing, and an examination of the Amazon Cloud Service. Online resources include supplementary content that is available via the textbook’s companion website, as well useful resources for faculty and students alike, including: a complete lab manual; power point notes, for installing, configuring, securing and experimenting with many of the servers discussed in the text; power point notes; animation tutorials to illustrate some of the concepts; two appendices; and complete input/output listings for the example Amazon cloud operations covered in the book.
From Mike Meyers, the #1 name in CompTIA training and exam preparation, a thorough revision of his bestselling exam guide—updated to cover the 2015 release of the CompTIA Network+ exam. Get complete coverage of all the CompTIA Network+ exam objectives inside this comprehensive resource. Written by the leading expert on CompTIA certification and training, Mike Meyers, this authoritative guide covers exam N10-006 in full detail. You’ll find learning objectives at the beginning of each chapter, exam tips, scenarios, practice exam questions, and in-depth explanations. Designed to help you pass the exam with ease, this definitive volume also serves as an essential on-the-job reference. CompTIA Network+ Certification All-in-One Exam Guide, Sixth Edition covers all exam topics, including: Network architectures Cabling and topology Ethernet basics Network installation TCP/IP applications and network protocols Routing Network naming Advanced networking devices IPv6 Remote connectivity Wireless networking Virtualization and cloud computing Network operations Managing risk Network security Network monitoring and troubleshooting Electronic content includes: 100+ practice exam questions in a customizable test engine 20+ lab simulations to help you prepare for the performance-based questions One hour of video training from Mike Meyers Mike’s favorite shareware and freeware networking tools and utilities
Need to configure or manage Novell Cluster Services on NetWare, Linux or a mixed environment? Pick up a copy of the official reference guide, Novell Cluster Services for Linux and NetWare. This book blends in-depth information with practical, real world examples to cover cluster services configuration strategies, backup requirements, cluster services management, and upgrading tactics. You'll gain invaluable insight from authors Rob Bastiaansen and Sander van Vugt, two Novell Certified Instructors with day-to-day experience consulting on the topics covered in this book. Master intalling and managing Novell Cluster Services with the tutorial not available from anyone else, Novell Cluster Services for Linux and NetWare.
Boost your Linux+/LPIC readiness with practice tests for all exam domains CompTIA Linux+ and LPIC Practice Tests provide 100% coverage of all exam objectives for both the CompTIA Linux+ exams LX0-103 and LX0-104, and the LPIC exams 101-400, 102-400, and 201and 202, through 1,200+ expertly crafted practice questions. These easy to navigate practice questions cover the Linux+ and LPIC-1 exams, covering all 10 domains. The second part covers the LPIC-2 exam, covering all 13 LPIC-2 domains. An additional two 60-question practice exams per section help you gauge your readiness — and hone your test-taking strategy — well in advance of exam day, giving you the thorough preparation you need to approach the exam with confidence. You will also gain access to the Sybex interactive learning environment where you have access to all questions and can create your own practice tests based on areas further review is needed Master the skills and concepts on the LPIC-1 and the LPIC-2 exams Gauge your understanding with unique practice tests for each exam domain Identify weak points and prioritize your preparation Preview exam day with four 60-question practice exams Practice tests are among the most effective exam preparation strategies. These tests are designed to mimic the Linux+, LPIC-1 and LPIC-2 exams, giving you the practice you need to ensure you are fully prepared. This book can be used alone or with the Sybex study guides and deluxe study guides. Start preparing for your Linux certification today.
We are living in the era of "Big Data" and the computing power required to deal with "Big Data" both in terms of its energy consumption and technical complexity is one of the key areas of research and development. The U.S. Environmental Protection Agency estimates that centralized computing infrastructures (data centres) currently use 7 giga watts of electricity during peak loads. This translates into about 61 billion kilowatt hours of electricity used. By the EPA's estimates, power-hungry data centres consume the annual output of 15 average-sized power plants. One of the top constraints to increasing computing power, besides the ability to cool, is simply delivering enough power to a given physical space. Green Information Technology: A Sustainable Approach offers in a single volume a broad collection of practical techniques and methodologies for designing, building and implementing a green technology strategy in any large enterprise environment, which up until now has been scattered in difficult-to-find scholarly resources. Included here is the latest information on emerging technologies and their environmental impact, how to effectively measure sustainability, discussions on sustainable hardware and software design, as well as how to use big data and cloud computing to drive efficiencies and establish a framework for sustainability in the information technology infrastructure. Written by recognized experts in both academia and industry, Green Information Technology: A Sustainable Approach is a must-have guide for researchers, computer architects, computer engineers and IT professionals with an interest in greater efficiency with less environmental impact. - Introduces the concept of using green procurement and supply chain programs in the IT infrastructure. - Discusses how to use big data to drive efficiencies and establish a framework for sustainability in the information technology infrastructure. - Explains how cloud computing can be used to consolidate corporate IT environments using large-scale shared infrastructure reducing the overall environmental impact and unlocking new efficiencies. - Provides specific use cases for Green IT such as data center energy efficiency and cloud computing sustainability and risk.