More than a million systems are now connected to the Internet, and something like 15 million people in 100 countries on all seven continents use Internet services. More than 100 million email messages are exchanged each day, along with countless files, documents, and audio and video images. Everyone is jumping on the Internet bandwagon. Once a haven for academicians and scientists, the Net is now reaching large and small businesses, government at all levels, school children, and senior citizens. The commercial world is rushing headlong into doing business on the Internet, barely pausing while technologies and policies catch up with their desire to go online. But, too few of the seekers after Internet wisdom and riches consider whether their businesses will be safe on the Net. What kinds of security risks are posed by the Internet? Some risks have been around since the early days of networking -- password attacks (guessing them or cracking them via password dictionaries and cracking programs), denial of service, and exploiting known security holes. Some risks are newer and even more dangerous -- packet sniffers, IP (Internet Protocol) forgery, and various types of hijacking attacks. Firewalls are a very effective way to protect your system from these Internet security threats. Firewalls in computer networks keep damage on one part of the network (e.g., eavesdropping, a worm program, file damage) from spreading to the rest of the network. Without firewalls, network security problems can rage out of control, dragging more and more systems down. What is a firewall? It's a hardware and/or software solution that restricts access from your internal network to the Internet -- and vice versa. A firewall may also be used to separate two or more parts of your local network (for example, protecting finance from R&D). The firewall is installed at the perimeter of the network, ordinarily where it connects to the Internet. You can think of a firewall as a checkpoint; all traffic, incoming and outgoing, is stopped at this point. Because it is, the firewall can make sure that it is acceptable. "Acceptable" means that whatever is passing through -- email, file transfers, remote logins, NFS mounts, etc. -- conforms to the security policy of the site. Building Internet Firewalls is a practical guide to building firewalls on the Internet. If your site is connected to the Internet, or if you're considering getting connected, you need this book. It describes a variety of firewall approaches and architectures and discusses how you can build packet filtering and proxying solutions at your site. It also contains a full discussion of how to configure Internet services (e.g., FTP, SMTP, Telnet) to work with a firewall. The book also includes a complete list of resources, including the location of many publicly available firewall construction tools. The book is divided into four parts: Part I discusses Internet threats, the benefits of firewalls, overall security strategies, and a summary of Internet services and their security risks. Part II describes possible firewall designs and general terms and concepts, how to protect the bastion host in your firewall configuration, how to build proxying and packet filtering firewalls, and how to configure Internet services to operate with a firewall. Part III describes how to maintain a firewall, develop a security policy, and respond to a security incident. Part IV contains appendic

Welcome to Visual C++. Over the next 21 days, you will learn how to use the features that Microsoft has built into its C++ development environment to enable you to create very advanced applications for the Windows and NT platforms. When Microsoft's developers first came up with the idea behind Visual C++, they decided to take their world-class C++ compiler and create a development environment and set of tools that would enable developers to create Windows applications with a level of ease and speed that was unheard of among C++ development environments. Since that first version, Microsoft has continued to improve the tools that are a part of Visual C++ to make it even easier to create Windows applications. As Microsoft has introduced new technologies into the Windows platforms, it has also introduced tools into the Visual C++ suite to make it easy to integrate these new technologies into your applications.

This incisive, witty book looks at some of the most influential marketing and business philosophies in technology and, through hindsight, provides an educational and vastly entertaining examination of why they didn't work.

Use this step-by-step guide to achieve amazing effects with the hundreds of Flash components available from Macromedia and various third parties, from avoiding pitfalls to building games and more.

This work provides both the evidence and the guidance to enable doctors to improve their assessment and management of the psychological and behavioural aspects of the most common problems presenting in general medical care.

Many physical processes are difficult or even impossible to study by conventional experimental methods. As computing power has increased, it has become possible to model some of these processes by sophisticated computer code. In such cases, the code can serve as a proxy for the physical process. As in a physical experiment, one can vary the inputs to the code and observe how the process output is affected. Such studies are called computer experiments and are becoming increasingly popular surrogates for, and adjuncts to, physical experiments. Much of the methodology for designing, modeling, and analyzing computer experiments can be found only in research papers. The goal of this book is to make these methods accessible to a more general audience. To accomplish this, we have tried to keep the mathematics at a level that will be understandable to readers with Masters level training in Statistics. This has been a challenging task. For example, Gaussian process models are a popular way to describe the output of computer experiments, but Gaussian process models are mathematically complex and likely to be unfamiliar to many readers. We provide an introduction to these models and present references for those who wish to study additional mathematical details of such processes. In other chapters, we relegate mathematical details to notes at the chapter end. To make the book more useful for practitioners, we provide software that can be used to fit the models discussed in the book. Instructions for using the software are included in an Appendix. Examples of the use of the software are interspersed throughout the book. As the software is updated, new versions (and an expanded user's manual) will be put on line through the book web site.)

Understand the business case for storage networks and lower your total cost of ownership with this comprehensive guide When adopting a storage networking solution, you need to understand the business case for your decision. Yet this process is fraught with many business and technical considerations. How will the adoption of a storage networking solution affect your current infrastructure? How will your IT team grapple with the addition of a new technology? How can you turn the cost of your storage network into a business benefit, strengthening your bottom line and paving the way for future success?

The work of Richard M. Stallman literally speaks for itself. From the documented source code to the published papers to the recorded speeches, few people have expressed as much willingness to lay their thoughts and their work on the line. Such openness-if one can pardon a momentary un-Stallman adjective-is refreshing. After all, we live in a society that treats information, especially personal information, as a valuable commodity. The question quickly arises. Why would anybody want to part with so much information and yet appear to demand nothing in return? As we shall see in later chapters, Stallman does not part with his words or his work altruistically. Every program, speech, and on-the-record bon mot comes with a price, albeit not the kind of price most people are used to paying. I bring this up not as a warning, but as an admission. As a person who has spent the last year digging up facts on Stallman's personal history, it's more than a little intimidating going up against the Stallman oeuvre. "Never pick a fight with a man who buys his ink by the barrel," goes the old Mark Twain adage. In the case of Stallman, never attempt the definitive biography of a man who trusts his every thought to the public record. For the readers who have decided to trust a few hours of their time to exploring this book, I can confidently state that there are facts and quotes in here that one won't find in any Slashdot story or Google search. Gaining access to these facts involves paying a price, however. In the case of the book version, you can pay for these facts the traditional manner, i.e., by purchasing the book. In the case of the electronic versions, you can pay for these facts in the free software manner. Thanks to the folks at O'Reilly & Associates, this book is being distributed under the GNU Free Documentation License, meaning you can help to improve the work or create a personalized version and release that version under the same license. If you are reading an electronic version and prefer to accept the latter payment option, that is, if you want to improve or expand this book for future readers, I welcome your input. Starting in June, 2002, I will be publishing a bare bones HTML version of the book on the web site, http://www.faifzilla.org. My aim is to update it regularly and expand the Free as in Freedom story as events warrant. If you choose to take the latter course, please review Appendix C of this book. It provides a copy of your rights under the GNU Free Documentation License. For those who just plan to sit back and read, online or elsewhere, I consider your attention an equally valuable form of payment. Don't be surprised, though, if you, too, find yourself looking for other ways to reward the good will that made this work possible. One final note: this is a work of journalism, but it is also a work of technical documentation. In the process of writing and editing this book, the editors and I have weighed the comments and factual input of various participants in the story, including Richard Stallman himself. We realize there are many technical details in this story that may benefit from additional or refined information. As this book is released under the GFDL, we are accepting patches just like we would with any free software program. Accepted changes will be posted electronically and will eventually be incorporated into future printed versions of this work. If you would like to contribute to the further improvement of this book, you can

In the three hundred years since his death, Cook's reputation has been much discussed, opinion ranging from Britain's celebration of his achievement to more subjective assessments of the long-term implications of his voyages in those countries of the Pacific which he visited. The thirteen essays in this book, grouped in four sections, continue the debate. 'The Years in England' cover Cook's Whitby background and the part played by the Royal Society in the Pacific ventures of the period; 'The Pacific Voyages' investigates the clash between the Endeavour's crew and Aborigines on the banks of the Endeavour River; the process by which Cook and his crews became 'Polynesianised'; Cook's visit to the Hawaiian Islands; and his visit to Nootka Sound on his final voyage. 'Captain Cook and his Contemporaries' views other European explorers in the Pacific, and concludes with an analysis of Russian attitudes towards Cook. 'The Legacy of Captain Cook' compares Cook's death on Hawaii and the later killing of a missionary on Eromanga; examines fluctuations in Cook's reputation; and describes life on board the replica of the Endeavour.

Adolf Hitler enlisted in the Bavarian Army in august 1914 as a war volunteer. Fanatically devoted to the German cause, between 1914 and 1918 Hitler served with distinction and sometimes reckless bravery, winning both classes of Iron Cross. Using memoirs, military records, regimental, divisional and official war histories as well as (wherever possible) Hitler's own words, this book seeks to reconstruct a period in his life that has been neglected in the literature. It is also the story of a German regiment (16th Bavarian Reserve Infantry, or List Regiment), which fought in all the main battles on the Western Front. As a frontline soldier Hitler began his 'study' of the black art of propaganda; and, as he himself maintained, the List Regiment provided him with his 'university of life'. This is not only an account of the fighting, however. Some of the most profound influences on Hitler occurred on home leave or as a result of official wartime propaganda, which he devoured uncritically. His conversion from passive pathological anti-Semitism began while invalided in Germany in 1916-17. The language of anti-Bolshevik 'Jewish virus' propaganda became Hitler's language, confirmed, as he saw it, by the 'infected' recruits to the List Regiment in 1918. Hitler is here presented less as the product of high-cultural forces than as an avid reader and gullible consumer of state propaganda, which fed his prejudices. He was a 'good soldier' but also a 'true believer' in fact and practice. It is no exaggeration to say that every military decision made by Hitler between 1939 and 1945 was in some way influenced or coloured by his experiences with the List Regiment between 1914 and 1918.

This intellectually powerful and highly original book examines Roman expansion through the lens of public lawmaking, the process of negotiation and debate by which citizen assemblies resolved conflict and expressed consensus. Williamson incisively examines how problems of expansion were managed, and boldly argues that in the end it was expansion itself—both of the electorate and its leadership—that overwhelmed the problem-solving capacities of public lawmaking and led to the breakdown of the Republic

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This is the second book in a two-part series about the German Commanders of World War II and covers distinguished commanders from the Waffen-SS, the Luftwaffe and the Navy. The commanders covered include such famous names as Josef Dietrich, Theodor Eicke, Kurt Meyer, Joachim Peiper and Karl Donitz and the book details their fascinating wartime experiences. The colour plates are in the uniquely meticulous style of the respected World War II illustrator Malcolm McGregor.

The scourge of Allied shipping during World War II, the U-Boot Waffe was one of the most feared components of Hitler's war machine, yet the Kriegsmarine was the least political branch of the Third Reich. The sailors of the U-boat arm were courageous, highly skilled seamen, who fought a war in the toughest conditions: subject to immense tension, and forced to cope with the challenges of the Atlantic, life for a U-boat recruit was far from easy. This title explores the life of a typical U-boat crewman, from recruitment, through training and service conditions, to combat experience throughout the war. Illustrated with many previously unpublished images, this book offers a fresh insight into the experiences of the men in Dönitz's legendary 'wolf packs'.