A standard tutorial approach which will guide the readers on all of the intricacies of the Zimbra Server.If you are any kind of Zimbra user, this book will be useful for you, from newbies to experts who would like to learn how to setup a Zimbra server. If you are an IT administrator or consultant who is exploring the idea of adopting, or have already adopted Zimbra as your mail server, then this book is for you. No prior knowledge of Zimbra is required.
Unleash the true potential of Ubuntu Server in your production environment using this administration guide About This Book Learn how to deploy and configure Ubuntu servers and work with cloud and hyper-visors Optimize network traffic to broadcast and multicast the traffic flow in OpenStack clouds Discover the essentials of the latest version of Ubuntu, which are good in both looks and performance, using this fast-paced guide Who This Book Is For This book is for system administrators who are familiar with the fundamentals of the Linux operating system and are looking for a fast-paced guide on Ubuntu, and those who are familiar with the older versions of Ubuntu and want to get up to scratch. Basic knowledge of Linux administration is assumed. What You Will Learn Install and set up Ubuntu Server in the shortest possible time, manually as well as in an automated way, for a single server or hundreds of servers Discover the fundamentals of the Ubuntu command-line interface Configure and administer Ubuntu Server using networking and CLI Deploy servers on Ubuntu in the simplest and fastest ways Enhance security within Ubuntu Server using tools such as firewalls, IDS, and IPS and procedures such as restore, rescue, and recovery Work with virtualization, clouds, and one of the best in open source cloud computing —OpenStack Optimize CLI for grep and exec commands and gain some best tips and tricks for Ubuntu Server administration In Detail Ubuntu is a Debian-based Linux operating system built on top of the Debian architecture. It is used to make operating systems for multiple platforms, including phones, desktops, TVs and mobiles. It has made some serious progress in the realms of efficiency and user friendliness. With evolving technology trends, demands on software have changed, with more and more skilled users. Over the past few years, services such as Facebook, Twitter, and push notifications on smartphones mean that users are used to being up to date with everything that happens all the time. With SignalR, the applications stay connected and will generate notifications when something happens either from the system or by other users. This provides new opportunities for the system administrators, to enter this new and exciting world of real-time application development. This is a concise and a cost-friendly guide, packed with up-to-date essentials on Ubuntu Server fundamentals. It will guide you through deploying and configuring Ubuntu servers in your office environments. You'll start by installing Ubuntu Server, then move to the most useful aspect —the command-line interface inside it. You'll extend your knowledge by learning how to administrate and configure Ubuntu Server. You will also see how to deploy services on Ubuntu Server and find out how to secure it. You'll get to grips with the virtualization and cloud computing facilities provided by Ubuntu, and finally, you'll gain some very useful tips. Style and approach This concise and easy-to-follow guide follows a step-by-step approach to help you master Ubuntu server, no matter what your level of expertise it. Each topic is explained sequentially with both essential information and whenever needed, in-depth references.
Get your organization up and running with Zimbra, fast Get your organization up and running with Zimbra, fast Administer the Zimbra server and work with the Zimbra web client Protect your Zimbra installation from hackers, spammers, and viruses Access Zimbra from Microsoft Outlook In Detail Zimbra is open-source server and client software for messaging and collaboration: email, group calendaring, contacts, and web document management and authoring. The Zimbra server is available for Linux, Mac OS X, appliances, and virtualization platforms. The Zimbra Web 2.0 Ajax client runs on Firefox, Safari, and IE, and features easy integration/mash-ups of web portals, business applications, and VoIP using web services. This book shows readers how to install and configure Zimbra for use with the web client, Outlook, and mobile devices. Readers will learn about Zimbra Collaboration Suite architecture and get an overview of its Administration. The book covers setting up users, using Zimbra as your main email server, and security, spam, and virus issues. It wraps up by looking at some Zimlets â€" Zimbra mashups â€" as well as backing up and managing performance. This compact, friendly Administrators Guide contains plenty of step-by-step instructions as well as useful references and checklists. It shows readers how to install and configure Zimbra for use with the web client, Outlook, and mobile devices.
Management Information Systems provides comprehensive and integrative coverage of essential new technologies, information system applications, and their impact on business models and managerial decision-making in an exciting and interactive manner. The twelfth edition focuses on the major changes that have been made in information technology over the past two years, and includes new opening, closing, and Interactive Session cases.
Mastering Cloud Computing is designed for undergraduate students learning to develop cloud computing applications. Tomorrow's applications won’t live on a single computer but will be deployed from and reside on a virtual server, accessible anywhere, any time. Tomorrow's application developers need to understand the requirements of building apps for these virtual systems, including concurrent programming, high-performance computing, and data-intensive systems. The book introduces the principles of distributed and parallel computing underlying cloud architectures and specifically focuses on virtualization, thread programming, task programming, and map-reduce programming. There are examples demonstrating all of these and more, with exercises and labs throughout. Explains how to make design choices and tradeoffs to consider when building applications to run in a virtual cloud environment Real-world case studies include scientific, business, and energy-efficiency considerations
A comprehensive resource for high school teachers and students, STEM Student Research Handbook outlines the various stages of large- scale research projects, enabling teachers to coach their students through the research process.
Host your own website or blog with this unique guide If you'd like to make the leap from a hosted environment to a self-hosted service, this book is for you. You may be making the move from casual blogging to professional blogging. Or, you might already be self-hosting, but want a good guide to show you how to get more out of your plan. In simple, easy-to-understand language, this helpful book breaks down all the functions of web hosting for self-hosted users, from setting up new e-mail accounts to backing up and securing your site, analyzing server logs, choosing a platform to install, and more. Breaks down the functions of web hosting for new self-hosters, including casual bloggers who may be moving into professional blogging Helps those who are already self-hosting maximize the services they are paying for Offers a one-stop, complete resource on web hosting, rather than just a few chapters, as in many blogging books Covers setting up and using e-mail accounts, working with FTP clients, backing up and securing sites, using cloud services, understanding domains and DNS, using built-in databases, and more Web Hosting For Dummies helps you take charge of your own web hosting and having fun in the process!
Within the rapidly expanding field of educational technology, learners and educators must confront a seemingly overwhelming selection of tools designed to deliver and facilitate both online and blended learning. Many of these tools assume that learning is configured and delivered in closed contexts, through learning management systems (LMS). However, while traditional "classroom" learning is by no means obsolete, networked learning is in the ascendant. A foundational method in online and blended education, as well as the most common means of informal and self-directed learning, networked learning is rapidly becoming the dominant mode of teaching as well as learning. In Teaching Crowds, Dron and Anderson introduce a new model for understanding and exploiting the pedagogical potential of Web-based technologies, one that rests on connections — on networks and collectives — rather than on separations. Recognizing that online learning both demands and affords new models of teaching and learning, the authors show how learners can engage with social media platforms to create an unbounded field of emergent connections. These connections empower learners, allowing them to draw from one another’s expertise to formulate and fulfill their own educational goals. In an increasingly networked world, developing such skills will, they argue, better prepare students to become self-directed, lifelong learners.
This work presents a series of dramatic discoveries never before made public. Starting from a collection of simple computer experiments---illustrated in the book by striking computer graphics---Wolfram shows how their unexpected results force a whole new way of looking at the operation of our universe. Wolfram uses his approach to tackle a remarkable array of fundamental problems in science: from the origin of the Second Law of thermodynamics, to the development of complexity in biology, the computational limitations of mathematics, the possibility of a truly fundamental theory of physics, and the interplay between free will and determinism.
