Dealing with system problems from user login failures to server crashes--is a critical part of a system administrator's job. A down system can cost a business thousands of dollars per minute. But there is little or no information available on how to troubleshoot and correct system problems; in most cases, these skills are learned in an ad-hoc manner, usually in the pressure-cooker environment of a crisis. This is the first book to address this lack of information.
The authors (both experienced Tru64 UNIX support engineer for Compaq) systematically present the techniques and tools needed to find and fix system problems. The first part of the book presents the general principles and techniques needed in system troubleshooting. These principles and techniques are useful not only for UNIX system administrators, but for anyone who needs to find and fix system problems. After this foundation, the authors describe troubleshooting tools used in the UNIX environment. The remainder of the book covers specific areas of the Tru64 UNIX operating system in detail: listing common problems, their causes, how to detect them, and how to correct them. Each chapter includes a "Before You Call Support" section that details the most important things to check and correct before it's necessary to call Compaq technical support. The authors also include decision trees to help the reader systematically isolate particular problem types.
. "Before You Call Tech Support" sections
.Tables and diagrams for quick access to precise data
.Decision trees to help choose the best way to troubleshoot a particular problem"

OpenVMS professionals have long enjoyed a robust, full-featured operating system running the most mission-critical applications in existence. However, many of today's graduates may not yet have had the opportunity to experience it for themselves. Intended for an audience with some knowledge of operating systems such as Windows, UNIX and Linux, Getting Started with OpenVMS introduces the reader to the OpenVMS approach.

Part 1 is a practical introduction to get the reader started using the system. The reader will learn the OpenVMS terminology and approach to common concepts such as processes and threads, queues, user profiles, command line and GUI interfaces and networking. Part 2 provides more in-depth information about the major components for the reader desiring a more technical description. Topics include process structure, scheduling, memory management and the file system. Short sections on the history of OpenVMS, including past, present, and future hardware support (like the Intel Itanium migration), are included. OpenVMS is considered in different roles, such as a desktop system, a multi-user system, a network server, and in a combination of roles.
Allows the more advanced reader some meaty content yet does not overwhelm the novice
Provides practical examples showing that OpenVMS is well-suited for popular modern applications
Gives a high-level overview of concepts behind internals such as memory management

Whether you're an experienced webmaster new to OpenVMS or an old OpenVMS hand new to webservers, this book will save you time and help you do your job better. The book points out similarities and differences between Unix and VMS, contains a management-friendly explanation of VMS's suitability for 24x7 operation, explains web concepts like authentication and access control models clearly (including honest discussion of drawbacks and weaknesses). Clear examples show how to configure each of the three webservers to accomplish specific goals, and comparisons will help you choose which server to run. If you're using or considering using a VMS webserver, this book is for you.
OpenVMS with Apache, OSU and WASD also discusses specific tasks, such as how to port CGI programs from other operating systems, and gives working examples in PERL, Python, and DCL. One chapter also covers database connectivity for VMS-based CGI programs.
-Use OpenVMS to provide reliable, full-featured web service for your business
-Find information not available anywhere else for OpenVMS, whose unbeatable reliability makes it the web server of choice for institutions that can't afford downtime for their websites
-Learn from numerous examples and step-by-step procedures how to do the same task in different servers

A new edition the most popular Hack Proofing book around
IT professionals who want to run secure networks, or build secure software, need to know about the methods of hackers. The second edition of the best seller Hack Proofing Your Network, teaches about those topics, including:
.The Politics, Laws of Security, Classes of Attack, Methodology, Diffing, Decrypting, Brute Force, Unexpected Input, Buffer Overrun, Sniffing, Session Hijacking, Spoofing, Server Holes, Client Holes, Trojans and Viruses, Reporting Security Problems, Choosing Secure Systems
The central idea of this book is that it's better for you to find the holes in your network than it is for someone else to find them, someone that would use them against you. The complete, authoritative guide to protecting your Windows 2000 Network.
Updated coverage of an international bestseller and series flagship
Covers more methods of attack and hacker secrets
Interest in topic continues to grow - network architects, engineers and administrators continue to scramble for security books
Written by the former security manager for Sybase and an expert witness in the Kevin Mitnick trials
.A great addition to the bestselling "Hack Proofing..." series
.Windows 2000 sales have surpassed those of Windows NT
.Critical topic. The security of an organization's data and communications is crucial to its survival and these topics are notoriously difficult to grasp
.Unrivalled web support at [email protected]"

The only way to stop a hacker is to think like one
Sun Microsystem's venerable and well-respected operating system Solaris is currently in version 8, and runs on both Intel and Sun Hardware. Solaris is one of the most comprehensive and popular UNIX operating systems available. Hundreds of thousands of business enterprises, both small and large, depend on Sun Solaris to keep their business alive - but have they protected themselves against hackers?
Hack Proofing Sun Solaris 8 is the latest addition to the popular Hack Proofing series from Syngress Publishing. Providing hands-on information written by both security professionals and self-proclaimed hackers, this book will give system administrators the edge they need to fortify their Sun Solaris operating system against the never-ending threat of hackers.
The fifth title in the popular series that brought us the bestseller Hack Proofing Your Network
Teaches strategy and techniques using forensic-based analysis
Up to the minute Web-based support with [email protected]

Eliminate the hassles of Active Directory - install Windows 2000 without it
Windows 2000 is undoubtedly a great product. In one year after its release, Microsoft have sold have sold 10 million licenses. System administrators are praising its impressive abilities to coordinate Internet, intranet, extranets, and management applications creating a complete technical infrastructure. However, there has been a noticeable amount of organizations that are avoiding one of the most talked about features of Windows 2000 - Active Directory. The industry buzz is that Active Directory (although a great product) is a burden to implement and install and is not compatible with non Windows products like Solaris, NetWare and Linux.
Configuring Windows 2000 WITHOUT Active Directory is a complete guide to installation and configuration of Windows 2000 (without Active Directory) for system administrators and network consultants. This book details not only the new features and functions of Windows 2000 but also how to integrate several features with existing Windows NT4 domains. The book does not cover the Active Directory function of Windows 2000.
There is nothing like this book available, yet every Windows 2000 mail list, magazine and online forum shouts for his sort of coverage

A Complete Resource for Developing Applications with PHP4

Build dynamic database-enabled Web applications with PHP4 using this comprehensive sourcebook. You'll learn to take advantage of all of the new enhancements--including sessions, a faster interpreter, and enhanced Java and XML support--that make this easy-to-learn language ideal for developing Web applications. Filled with real-world examples that show how to build both template-based and database-driven sites, this book contains all the essential tools and information for creating rich Web content. Covering everything from installation and configuration to interaction with existing codebases, this book offers complete guidance for today's professional developer.

You'll find everything you need to:

• Master all of the new features of PHP4
• Process and validate forms
• Separate HTML from PHP4 code
• Debug and re-use code
• Work with templates and databases
• Generate static HTML pages from dynamic data

For clear, detailed information on working with PHP4--including coverage of its latest features--no other book can offer the same depth and breadth of coverage as this invaluable guide.

Special features include:

• PHP4 language overview
• Coverage of installation and configuration
• Debugging tips and techniques
• Appendices containing function lists, build options, and Internet resources
• Hundreds of real-world examples for creating dynamic Web sites

-- What it is -- The Solaris 7 product line is Sun's premier software environment for network computing. A UNIX -based operating environment developed by Sun Microsystems. Solaris runs on many workstations from other vendors including Intel. Solaris 7 features a 64-bit environment, mainframe-class reliability features, enhanced PC interoperability, easier installation, administration and configuration.
-- Powerful and flexible -- Solaris 7 is one of the most popular brands of UNIX due to its power and flexibility, but it is difficult to install and set up. However, it is one of the most powerful and stable network operating systems around. Very inexpensive, as well.
-- Widespread with developers -- More than 100,000 copies of Solaris 7 were distributed for Free in the last 9 months to allow developers to work with the and build applications (Source: BusinessWire, 8/5/99).

This unique and authoritative book helps systems administrators and other technical professionals understand and master perhaps the most critical part of Tru64 UNIX: the file system by which the operating system stores and manipulates all of the information that enables both it and other applications to function. File system administration thus is one of the most important, complex, and time-consuming tasks Tru64 system administrators must perform.
If Tru64 UNIX is an automobile engine, then the file system is the microprocessor that keeps all of the engine components working together efficiently, and this book explains how to manage, tune, and troubleshoot this processor. Steve Hancock is an ideal author for this book. As a file systems support engineer within Compaq's Tru64 UNIX group, he trains and consults with systems administrators and engineers within large corporations who are designing, managing, and troubleshooting Tru64 UNIX file systems. Tru64 UNIX File Systems Administration Handbook covers all of the newest and advanced Tru64 UNIX features, including Compaq's TruCluster technology, which enables organizations to grow their systems by integrating many individual computers.
Complements Digital UNIX System Administrator's Guide by Cheek
Only book dedicated to this topic, one vital to Tru64 UNIX system administrators
Explains how to deploy Compaq's TruCluster clustering technology on Tru64 UNIX

The expert introduction to Microsoft's Pocket PC operating system that runs
on devices such as the Compaq ipaq, Casio E125, EM-500 and the HP Jornada
540 series.
Pocket PC Clear & Simple teaches readers how to use, customize and get the
most out of the built in applications included on the Pocket PC. The book is
packed with over 200 screen shots to illustrate the points being made. Pocket PC is bursting with powerful new capabilities, including direct internet connectivity, multimedia, and e-book reader functions, features that have led many industry experts to dub it the "Palm killer," referring to the competing Palm Pilot device.
Pocket PC Clear & Simple is written by Craig Peacock, a recipient of Microsoft's "Windows CE MVP" award and one of the few Windows CE gurus outside of Microsoft. Drawing on his extensive experience running "Craig Peacock's Windows CE Pages," one of the most heavily trafficked sites on the topic, the author offers extensive tips, workarounds, and innovative solutions that will help readers get the most of a Pocket PC device. Consistent with the "Clear & Simple" series, this book features a very visual and engaging style.

Teaches customization techniques and workarounds
Written by "one of the undisputed experts on Windows CE" (Microsoft)
Requires no technical or in-depth computer knowledge

Essential Skills for First-Time Programmers!

Learn the basics of Perl programming from the tutorials and examples in this easy-to-follow resource. Perl: A Beginner's Guide covers fundamentals, such as general syntax and semantics, control structures, subroutines, and regular expressions. The book explains how to use Perl modules, access databases, write CGI programs, and debug code. The examples throughout the book walk you through real-world programming tasks. To speed your progress, the source code for all projects is available free online. Start programming in Perl right away with this self-paced, step-by-step learning solution.

This Beginner's Guide is Designed for Easy Learning:

• Modules - Each programming concept is divided into logical modules (chapters), ideal for individualized learning
• Goals - Each module opens with the specific programming skills you'll have by the end of the module
• Ask the Experts - Q&A sections throughout are filled with extra information and interesting commentary
• 1-Minute Drills - Quick self-assessment sections to check your progress
• Annotated Syntax - Example code annotated with commentary that points to the particular technique illustrated
• Projects - Coding exercises contained in each module show how to apply what you are learning
• Mastery Checks - End-of-module reviews that test your knowledge using short-answer, multiple-choice, fill-in-the-blank, and simple coding questions

Leitthema des vorliegenden Tagungsbandes ist die Eignung von LINUX fur Echtzeit-Aufgaben. Dieser Frage wird zunachst in einem Grundsatz-Beitrag nachgegangen, gefolgt von anspruchsvollen Erfahrungsberichten. Erganzt werden sie durch Untersuchungen zur Zusammenarbeit mit digitalen Signalprozessoren. Vervollstandigt wird der LINUX-Schwerpunkt durch traditionelle Themen aus der Echtzeitprogrammierung. Echtzeit-Betriebssysteme und Anwendungsberichte runden den Band ab.

Learn the fundamentals of ASP programming by following the steps and examples in this easy-to-use guide.

Through tutorials and hands-on exercises, programming instructor Dave Mercer explains the fundamentals of ASP, including Web programming objectives, ASP scripting, object-oriented programming, Active Server Components and ADO, client/server applications, debugging, and security. If you want to get started programming in ASP right away here is the perfect self-paced learning solution for you.

This Beginner's guide is Designed for Easy Learning:

• Modules - Each programming concept is divided into logical modules (chapters), ideal for linear learning
• Goals - Each module opens with the specific programming skills you'll have by the end of the module
• Ask the Experts - Q&A sections throughout
• 1-Minute Drills -Quick self-assessment sections to check your progress
• Annotated Syntax - Example code annotated with commentary that points to the particular technique illustrated
• Projects - Coding exercises contained in each module that build on one another, from simple to complex
• Mastery checks - End-of-module reviews that test proficiency using multiple-choice, fill-in-the-blank, and simple coding questions

Digital UNIX System Administrator's Guide is the first book to address Digital UNIX system administration from an experienced administrator's point of view. Every topic covered is specific to Digital UNIX, including installing and configuring the system; creating and managing user accounts; managing networking, printing and the Web; developing and implementing backup strategies; and tuning and troubleshooting.
This book walks the novice Digital UNIX administrator through the initial system installation and is a guide through the main points of administering a Digital UNIX system. It also serves as a valuable reference guide for experienced UNIX system administrators who are new to Digital UNIX. It includes appendices that list URLs of valuable resources on the Web and detail useful public domain utilities and where to get them.
About Digital UNIX: Digital UNIX sales grew by 51% last year, faster than the industry's UNIX growth. (Overall, high-end UNIX server sales gained 5% last year and midrange UNIX servers grew 34%.) Digital was the first to offer 64-bit architecture, which has caused Sun, HP and Silicon Graphics to follow their lead. The combination of Digital UNIX and Alpha technology provides extremely high system performance. Analysts say that UNIX has a good three to five year technology lead over Windows NT due to its scalability, reliability, and clustering ability.
Specific to Digital UNIX
Resource for new and experienced UNIX system administrators
Covers all aspects of Digital UNIX system administration in an approachable and readable style

Completely updated and revised, The OpenVMS User's Guide continues to be the prime resource for new and non-technical users on how to use OpenVMS and customize it to their working environment. For more proficient users, the book serves as a quick look-up reference.
The book begins with an introduction to the OpenVMS operating system and its built-in functions, and then provides a thorough explanation of OpenVMS files and directories, use of DCL, and how to edit files using EVE and EDT. It also discusses how to create command procedures and the Mail and Phone utilities. New to this edition are additional insights into application development and sending e-mail to remote notes via the Internet, remote logins and file transfers. Each chapter is liberally sprinkled with learning aids including summaries and tables of commands, exercises, and review quizzes.
Completely covers the OpenVMS operating system - from logging in to creating command procedures, with thorough discussions of files and directories
Covers both EVE and EDT editors in detail
Shows how to customize your working environment

In the early days of computing, technicians in white coats controlled refrigerator-sized computers housed in sealed rooms, far from ordinary users. Today, computers are inexpensive commodities, like television sets,
and ordinary people control and interact with them. This new paradigm has led to a burgeoning demand for graphics-intensive and highly interactive interfaces.

Developing User Interfaces is targeted at the programmer who will actually implement, rather than design, the user interface. Most user interface books focus on psychology and usability, not programming techniques. This book recognizes the need for programmers to collaborate with usability experts and psychologists, so topics such as the principles of visualization, human perception, and usability evaluation are touched upon. Yet the primary focus remains on those tools and techniques required for programming the complex user interface.

* Focuses on advanced programming topics
* event handling
* interaction with geometric objects
* widget tool kits
* input syntax
* Useful to programmers using any language no particular windowing system or tool kit is presumed, examples are drawn from a variety of commercial systems, and code examples are presented in pseudo code
* The basic concepts of traditional computer graphics such as drawing and three-dimensional modeling are covered for readers without a computer graphics background."

OpenVMS Operating System Concepts, Second Edition uses a new approach to explain the OpenVMS operating system. Combining discussions of operating system theory with examples of its applications in key OpenVMS operating system facilities, the book provides a thoughtful introduction for application programmers, systems managers, and students. The books shows how OpenVMS system services can tap the power of operating system facilities to perform critical tasks on behalf of applications. It has been updated for OpenVMS and gives program examples in C.

. Updated for OpenVMS
. Shows program examples in C

This text is intended as a guide to OpenVMS performance management and application design. It features a variety of performance-related topics, and guidelines are given, with examples on how to relieve specific problems It features tuning tips on RDBMs (Oracle, Ingres, and Rdb) and making changes to Sysgen parameters, and specific application tuning (All-in-1, Pathworks, X-Windows and TCP/IP). It covers tuning methodologies, contains information on a range of performance-related topics, and provides information on "rules of thumb" on CPU, memory and disk I/O management. It also covers versions 5.0 and 6.0 of VMS.

This volume comprises the systems manuals for two of the most widely used OSI implementations - the X.400 protocols for message handling services, which is actively used in the research industry for gateway and conversion services and the X.500 protocols for directory services, currently the basis of a worldwide pilot in over 14 countries. This book explores the practical problems of implementing X.400 and X.500 services, including the reality of operating and configuring real systems, discusses the merits of alternative design approaches, and outlines the applicability of OSI standards to real world problems, including integration with other systems.

Handlungsorientierte Darstellung Mit diesem Buch fuhren wir Sie in einer aufbauenden Folge von Rezepten in die Welt des Betriebssystems MS DOS in der Version 6 ein. An einfachen Beispielen erleben Sie Problemloesungen mit dieser Generation des weit verbreiteten Einplatz- Betriebssystems. Hilfe Sie lernen die mitgelieferten Hilfeprogramme zu nutzen. Wenn Sie mehr Informa- tionen wollen, lesen Sie, wie Sie die Microsoft Support CDs und den Zugang zu CompuServe bekommen und dort das Forum MSDOS nutzen. Fur alle zusatzli- chen Hilfen finden Sie Bezugsadressen. Brucken Wir zeigen Ihnen Aussichtspunkte, von denen Sie die Blicke in die Nachbarwelt von Windows 3.1 werfen koennen. Viele Tabellen veranschaulichen Handlungsal- ternativen an der DOS-Eingabeaufforderung, der DOS-Shell und Windows. Alles automatisch? Mit Batch-Programmen und Makros gestalten Sie eigene Ablaufe. Sie erhalten viele Tips und Anregungen fur die Organisation und Planung Ihrer Arbeit mit DOS. Bilderbuch Die zahlreichen exakten Abbildungen von Bildschirmen und Ausdrucken vermit- teln Ihnen auch ohne PC jederzeit eine genaue Vorstellung von den Beispielen und der Arbeit mit DOS. Beispiele Sie finden durchweg einfache und ubersichtliche abgeschlossene Beispiele, die Sie auch noch am Feierabend bequem nachvollziehen koennen. Danke ... Wir danken CompuServe, Creative Daten Systeme, der GD Gesellschaft fur Datenkommunikation, Microsoft und Andreas Muller Software fur die vielfaltige Unterstutzung. Viel Erfolg! Wir wunschen Ihnen viel Freude und Erfolg beim Lesen und Arbeiten mit diesem Rezept-Buch und MS DOS 6.0. UEber Ihre Anregungen freuen wir uns.

Systems That Learn presents a mathematical framework for the study of learning in a variety of domains. It provides the basic concepts and techniques of learning theory as well as a comprehensive account of what is currently known about a variety of learning paradigms.Daniel N. Osherson and Scott Weinstein are at MIT, and Michael Stob at Calvin College.