快点用SSH保护你的计算机网络吧！SSH（Secure Shell）具有透明、保密性强、公钥认证可信的特点，并具有高度可配置的客户端/服务器体系结构，是基于TCP/IP协议、目前十分流行且健壮的网络安全与隐私保护解决方案。SSH支持安全远程登录，可用于计算机之间安全地传输文件。它特有的“隧道”功能能够保护其他一些原本并不安全的网络应用程序。而所有这一切中最重要的一点是，SSH既有免费版本，也有功能...

How do you know whether a hot technology will succeed or fail? Or where the next big idea will come from? The best answers come not from the popular myths we tell about innovation, but instead from time-tested truths that explain how we've made it this far. This book shows the way. In The Myths of Innovation, bestselling author Scott Berkun takes a careful look at innovation history, including the software and Internet Age, to reveal how ideas truly become successful innovations-truths that people can apply to today's challenges. Using dozens of examples from the history of technology, business, and the arts, you'll learn how to convert the knowledge you have into ideas that can change the world. Why all innovation is a collaborative process How innovation depends on persuasion Why problems are more important than solutions How the good innovation is the enemy of the great Why the biggest challenge is knowing when it's good enough "For centuries before Google, MIT, and IDEO, modern hotbeds of innovation, we struggled to explain any kind of creation, from the universe itself to the multitudes of ideas around us. While we can make atomic bombs, and dry-clean silk ties, we still don't have satisfying answers for simple questions like: Where do songs come from? Are there an infinite variety of possible kinds of cheese? How did Shakespeare and Stephen King invent so much, while we're satisfied watching sitcom reruns? Our popular answers have been unconvincing, enabling misleading, fantasy-laden myths to grow strong." -- Scott Berkun, from the text. "Insightful, inspiring, evocative, and just plain fun to read it's totally great." -- John Seely Brown, former Chief Scientist of Xerox, andDirector, Xerox Palo Alto Research Center (PARe; current Chief of Confusion "Small, simple, powerful: an innovative book about innovation." -- Don Norman, Nielsen Norman Group, Northwestern University; author of Emotional Design and Design of Everyday Things "The naked truth about innovation is ugly, funny, and eye-opening, but it sure isn't what most of us have come to believe. With this book, Berkun sets us free to try to change the world unencumbered with misconceptions about how innovation happens." -- Guy Kawasaki, author of The Art of the Start "Brimming with insights and historical examples, Berkun's book not only debunks widely held myths about innovation but also points the ways toward making your new ideas stick. Even in today's ultra-busy commercial world, reading this book will be time well spent." -- Tom Kelley, GM, IDEO; author of The Ten Faces of Innovation "This book cuts through the hype, analyzes what is essential, and more importantly, what is not. You will leave with a thorough understanding of what really drives innovation." -- Werner Vogels, CTO, Amazon.com "I loved this book. It's an easy-to-read playbook for anyone wanting to lead and manage positive change in their business." -- Frank McDermott, Marketing Manager, EMI Music Scott Berkun knows innovation. A member of the Internet Explorer team at Microsoft from 1994-1999, he is a full-time author at www.scottberkun.com and wrote the 2005 bestseller, The Art of Project Management (O'Reilly). He also teaches creative thinking at the University of Washington.

Are you the innovative type, the cook who marches to a different drummer -- used to expressing your creativity instead of just following recipes? Are you interested in the science behind what happens to food while it's cooking? Do you want to learn what makes a recipe work so you can improvise and create your own unique dish? More than just a cookbook, Cooking for Geeks applies your curiosity to discovery, inspiration, and invention in the kitchen. Why is medium-rare steak so popular? Why do we bake some things at 350 F/175 C and others at 375 F/190 C? And how quickly does a pizza cook if we overclock an oven to 1,000 F/540 C? Author and cooking geek Jeff Potter provides the answers and offers a unique take on recipes -- from the sweet (a "mean" chocolate chip cookie) to the savory (duck confit sugo). This book is an excellent and intriguing resource for anyone who wants to experiment with cooking, even if you don't consider yourself a geek. Initialize your kitchen and calibrate your tools Learn about the important reactions in cooking, such as protein denaturation, Maillard reactions, and caramelization, and how they impact the foods we cook Play with your food using hydrocolloids and sous vide cooking Gain firsthand insights from interviews with researchers, food scientists, knife experts, chefs, writers, and more, including author Harold McGee, TV personality Adam Savage, chemist Hervé This, and xkcd

Create and publish your own interactive data visualization projects on the Web, even if you have no experience with either web development or data visualization. It's easy with this hands-on guide. You'll start with an overview of data visualization concepts and simple web technologies, and then learn how to use D3, a JavaScript library that lets you express data as visual elements in a web page. Interactive Data Visualization for the Web makes these skills available at an introductory level for designers and visual artists without programming experience, journalists interested in the emerging data journalism processes, and others keenly interested in visualization and publicly available data sources. Get a practical introduction to data visualization, accessible for beginners Focus on web-based tools that help you publish your creations quickly to a wide audience Learn about interactivity so you can engage users in exploring your data

This practical guide provides more than 150 recipes to help you generate high-quality graphs quickly, without having to comb through all the details of R's graphing systems. Each recipe tackles a specific problem with a solution you can apply to your own project, and includes a discussion of how and why the recipe works. Most of the recipes use the ggplot2 package, a powerful and flexible way to make graphs in R. If you have a basic understanding of the R language, you're ready to get started. Use R's default graphics for quick exploration of data Create a variety of bar graphs, line graphs, and scatter plots Summarize data distributions with histograms, density curves, box plots, and other examples Provide annotations to help viewers interpret data Control the overall appearance of graphics Render data groups alongside each other for easy comparison Use colors in plots Create network graphs, heat maps, and 3D scatter plots Structure data for graphing

Now that storage and collection technologies are cheaper and more precise, methods for extracting relevant information from large datasets is within the reach any experienced programmer willing to crunch data. With this book, you'll learn machine learning and statistics tools in a practical fashion, using black-box solutions and case studies instead of a traditional math-heavy presentation. By exploring each problem in this book in depth - including both viable and hopeless approaches - you'll learn to recognize when your situation closely matches traditional problems. Then you'll discover how to apply classical statistics tools to your problem. Machine Learning for Hackers is ideal for programmers from private, public, and academic sectors.