The Simple Network Management Protocol (SNMP) is an Internet-standard protocol for managing hosts on an IP network. Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, UPSs, and more.

Essential SNMP is a practical introduction to SNMP for network and system administrators. It starts with the basics of SNMP and how it works, along with the technical background to use it effectively. The book covers OIDs, MIBs, community strings, traps, and other technical elements. But the main focus is on practical network administration: how to configure SNMP agents and network management stations, how to use SNMP to retrieve and modify variables on network devices, how to configure management software to react to traps sent by managed devices.

Essential SNMP explores both commercial and open source packages, including HP's OpenView, Castle Rock's SNMPc, the Net-SNMP tools, Simon Leinen's Perl SNMP support, and MRTG. Administrators will come away with ideas for writing scripts to help them manage their networks, create managed objects, and extend the operation of SNMP agents. In addition to SNMPv1 and v2, the book covers SNMPv3, which has just started to appear in commercial products as of this printing.

Windows NT systems are often said to "manage themselves." This book is for those times when things don't quite work out that way, when somebody who knows what's going on needs to intervene.

Essential Windows NT System Administration helps you manage Windows NT systems as productively as possible, making the task as pleasant and satisfying as can be. It combines practical experience with technical expertise, helping you to work smarter and more efficiently. It not only covers the standard utilities offered with the Windows NT operating system, but also those from the Resource Kit, as well as important commercial and free third-party tools. It also pays particular attention to developing your own tools by writing scripts in Perl and other languages to automate common tasks.

Essential Windows NT System Administration covers:

How Windows NT systems boot and how to shut them downUser account administration, including tips for managing large numbers of accountsCreating file systems, including striped and fault-tolerant file systems, and securing their contents from unauthorized accessSharing file systems via the network, using Windows NT's native share facility and other facilities such as Samba and NFSGeneral and advanced network configuration, including DHCP, DNS, WINS, routing, and RASManaging printers, including local printers, network printers, and printer poolsManaging processes, including the Windows NT schedule service, as well as performance optimization and capacity planningSecuring Windows NT systems, including implementing security policies and system auditing

This book covers the workstation and server versions of Windows NT 4.0 on both Intel and Alpha processor-based systems.

AEleen Frisch is a Windows NT and UNIX system administrator, and is the author of several books, including O'Reilly's bestselling Essential System Administration.

Ethernet is a core networking technology used by every high tech business. While the basic protocols have changed little, new options such as Fast Ethernet and Gigabit Ethernet have increased the complexity of the topic. Ethernet has been the flavor of choice for networking administrators since the early 1980s because of its ease of use and scalability. Written by one of the foremost experts on Ethernet standards and configuration, Charles E. Spurgeon, Ethernet: The Definitive Guide includes everything you need to know to set up and maintain an Ethernet network. Ethernet: The Definitive Guide teaches you everything you need to know about the IEEE 802.3 Ethernet standard and its protocols. The book is logically separated into five parts:Introduction to Ethernet provides a tour of basic Ethernet theory and operation, including a description of Ethernet frames, operation of the Media Access Control (MAC) protocol, full-duplex mode and auto-negotiation.Ethernet Media Systems is the heart of the book. This sectionof Ethernet: The Definitive Guide shows you how to build media-specific Ethernet networks, from a basic 10BASE-T Ethernet offering 10 Mbps over twisted-pair cables, to an advanced 1000BASE-X Gigabit Ethernet, providing up to 1 Gbps of data transfer over fiber optic cables.Building Your Ethernet System teaches you how to build twisted-pair and fiber optic media segments, as well as how to build your Ethernet using repeaters and hubs.Performance and Troubleshooting is divided into two chapters. The first describes both the performance of a given Ethernet channel, as well as the performance of the entire network system. The second includes a tutorial on troubleshooting techniques and describes the kinds of problems network administrators are likely to encounter.The last part of the book includes a complete glossary of terms used throughout the book, a resource list, descriptions of thick and thin coax-based Ethernet systems, a guide to AUI equipment installation and configuration, and a listing of troubleshooting numbers. This book is the definitive guide for anyone wanting to build a scalable local area network (LAN) using Ethernet.

Firefox Hacks is ideal for power users who want to take full advantage of Firefox from Mozilla, the next-generation web browser that is rapidly subverting Internet Explorer's once-dominant audience. It's also the first book that specifically dedicates itself to this technology. Firefox is winning such widespread approval for a number of reasons, including the fact that it lets users browse faster and more efficiently. Perhaps its most appealing strength, though, is its increased security something that is covered in great detail in Firefox Hacks. Clearly the web browser of the future, Firefox includes most of the features that browser users are familiar with, along with several new features, such as a bookmarks toolbar and tabbed pages that allow users to quickly switch among several web sites. Firefox Hacks offers all the valuable tips and tools you need to maximize the effectiveness of this hot web application. It's all covered, including how to customize its deployment, appearance, features, and functionality. You'll even learn how to install, use, and alter extensions and plug-ins. Aimed at clever people who may or may not be capable of basic programming tasks, this convenient resource describes 100 techniques for 100 strategies that effectively exploit Firefox. Or, put another way, readers of every stripe will find all the user-friendly tips, tools, and tricks they need to make a productive switch to Firefox. With Firefox Hacks, a superior and safer browsing experience is truly only pages away. The latest in O'Reilly's celebrated Hacks series, Firefox Hacks smartly complements other web-application titles such as Google Hacks and PayPal Hacks.

Everywhere you turn — newspapers, magazines, broadcast media, even eavesdropping at the local coffee shop — the news is inescapable: The nation is hooking up to the Internet. Business people who see the opportunity to publicize their products; educators reaching out to rural communities; scientific researchers who collaborate long-distance; consulting groups, church groups: Everybody's getting wired.

But getting your organization connected to the Internet is not as simple as calling the phone company for a telephone line. You have to learn about telecommunications technologies such as frame relay and ISDN, the differences among networking hardware options, and internal networking issues. You need to figure out not only which Internet service provider is best for you, but which services you really need. You'll be faced with a series of technical decisions concerning network security, routing management, and email gateways. And, you'll want to know what's the best free software out there for rounding out your investment.

Getting Connected: The Internet at 56K and Up, a comprehensive guide to dealing with these issues, explains in detail everything you need to know to make informed decisions. And it does much more. Once you've set up your Internet connection, it helps you to troubleshoot problems and introduces you to an array of Internet services, such as the World Wide Web. Tackles issues for PC, Macintosh, and UNIX platforms.

This book: Gives you an overview of the Internet: how it's organized, ts demographics, and legal issues.Introduces telecommunications technologies (atm, isdn, dedicated lines, T1 and T3, to name a few) and networking hardware (routers, dsu/csu, modems, terminal servers).Discusses how to assess bandwidth requirements, select an Internet service provider, and pricing.Explains IP and routing protocols, and describes the Doman Name Service.Describes how to set up an email hub using POP to support desktop and remote clients. Also covers gateways to other email systems such as cc:Mail and MS Mail.Introduces you to the basic Internet services: World Wide Web, gopher, WAIS, Netnews, anonymous ftp.Shows you how to secure your network with a firewall.Helps you to support remote users via slip and ppp connections.

HTML is changing so fast it's almost impossible to keep up with developments. How do you know what's real, and how do you use it? The third edition of HTML: The Definitive Guide brings it all together for you. It is the most comprehensive book available on HTML today. It covers Netscape Navigator 4.5, Internet Explorer 4.0, HTML, JavaScript, Style sheets, Layers, and all of the features supported by the popular Web browsers. Learning HTML is like learning any new language, computer or human. Most students first immerse themselves in examples. Studying others is a natural way to learn, making learning easy and fun. Imitation can take you only so far, though. It's as easy to learn bad habits through imitation as it is to acquire good ones. The better way to become HTML-fluent is through a comprehensive reference that covers the language syntax, semantics, and variations in detail and that helps you distinguish between good and bad usage.

HTML: The Definitive Guide, 3rd Edition helps you both ways: the authors cover every element of HTML in detail, explaining how each element works and how it interacts with other elements. Many hints about HTML style help you write documents ranging from simple online documentation to complex marketing and sales presentations. With hundreds of examples, the book gives you models for writing your own effective Web pages and for mastering advanced features, like style sheets and frames.

HTML: The Definitive Guide, 3rd Edition shows you how to: Use style sheets and layers to control a document's appearanceCreate tables, from simple to complexUse frames to coordinate sets of documentsDesign and build interactive forms and dynamic documentsInsert images, sound files, video, Java applets, and JavaScript programsCreate documents that look good on a variety of browsers

A handy quick reference card listing HTML tags is included.

There is growing interest in a standard way of providing access to personal information (e.g. "white pages" data) and simplifying the administration and management of this data. LDAP (Lightweight Directory Access Protocol) is poised to be the solution to these problems. Since the IETF recently approved version 3 of the LDAP protocol, it is now rapidly growing in importance as major companies seek to make their proprietary networks available as LDAP servers. Implementing LDAP comes at a time when programmers everywhere consider LDAP as the answer to their developmental needs.

No prior knowledge of LDAP is assumed as an in depth discussion of the fundamentals of LDAP - its data structure, object hierarchy and syntax - is provided. Client applications are then presented, in a variety of languages, designed to connect efficiently and securely to an LDAP server, search and retrieve information, and modify the data on the server.

...provides telephone system managers, telecommunication sales professionals & students with a non-technical explanation of the four major areas of telephone systems: station apparatus, transmission, switching & signaling.

This concise guide offers the basic concepts of IP routing,

free of hype and jargon. It begins with the simplest routing protocol, RIP, and then proceeds, in order of complexity, to IGRP, EIGRP, RIP2, OSPF, and finally to BGP. New concepts are presented one at a time in successive chapters. By the end, you will have mastered not only the fundamentals of all the major routing protocols,

but also the underlying principles on which they are based.

The basic information in "IP Routing" is designed to help you begin configuring protocols for Cisco routers. Although author Ravi Malhotra assumes that readers have a basic understanding of TCP/IP and are somewhat familiar with Cisco router configurations, he also assumes that you find some or all of these protocols difficult to work

with.

His book presents concepts simply, as nuts and bolts. Malhotra's use of plain language, analogy, and the recurring example of an imaginary network, which grows in complexity as the book progresses, will help you understand fundamental concepts behind each protocol. Once you master

these concepts, you will benefit from the detailed information contained in Cisco manuals and web pages (such as bug lists, new features, design guides, etc).

Depending on your skill level, you can either read "IP Routing" from cover to cover or use it as a reference for any of the protocols presented. The book describes administrative tools available to all the routing protocols, including those that block the advertisement of routing updates, and those that set up preferences for one routing protocol over another.

Honed by years of teaching Data Communications at major universities and managing IPnetworks in production environments, Ravi Malhotra's knowledge of this subject makes IP Routing is the ideal primer to Internet routing protocols.

Many technical professionals are tossed into their new position of managing an IT department without enough training or experience let alone a clear idea of what is expected of them. Other technicians are trying to decide if they should join the ranks of management, and want the real facts about managing and managing other technical pros before they decide.

To compound the issue, most companies have become highly dependent on their IT departments for their day-to-day business operations often including revenue generation so the tasks are critical and the learning curve is steep.

The IT Managers Handbook, 2nd edition provides essential information needed to manage the new responsibilities thrust on you (or the ones you would like to have): vital tasks such as creating budgets, evaluating technologies, administering compliance, and managing staff.

A completely updated and expanded second edition that provides practical, easily accessible management advice written specifically for new IT managers:
· Brings you up to speed on those business practices most critical to effective IT operations: recruiting, budgeting, resource planning, managing personnel, and working with vendors.
· Includes expanded coverage on such critical IT management topics as security, disaster recovery, storage, government/regulatory compliance, and project management.
· Organizes information modularly so you can delve directly into only the topics that you need.
· Provides a unique management perspective on those specific technical issues with the most significant business ramifications.
· Includes new material on key technology topics such as open source, wireless, handhelds, outsourcing, offshoring, and operations, as well as updated coverage of e-commerce, remote access, intranets, and LAN/WAN management.

There is a serious information gap for Webmasters learning client-side JavaScript skills and trying to solve common Web-related problems. Knowing the syntax is one thing, being able to build a useful application is another. And while there are dozens of "how- to" JavaScript books available, few literally hand the Webmaster a set of ready-to-go, client-side JavaScript applications with thorough documentation that enable the reader to fully understand and extend those applications. By providing such a set of applications, "JavaScript Application Cookbook" allows Webmasters to immediately add extra functionality to their Web sites.

This book targets readers with two different skill sets. The primary target is JavaScript-knowledgeable Webmasters and designers who can immediately begin constructing their own versions of the applications. The secondary target is those with little or no JavaScript experience. The included applications are ready for immediate use and require little customization.

This book explores both the code and the techniques that are centered around core JavaScript functionality, a functionality that will not become incompatible or obsolete. The source file design of most applications and libraries will help modularize reader Web sites and facilitate easier site management and coding practices.

Chapters are organized by application. Among the included applications are:

A client-side search engine that will show coders how to build their own search engine and get excellent results, all with a client-side tool

A drag-and-drop greeting application that lets users custom build and send DHTML email greetings

A GUI image rollover tool that generatescross-browser image rollover code for all versions of JavaScript

A robust client-side shopping cart application that lets shoppers browse and shop, while the application keeps a tab of the shopper's selections and a running bill, including tax and shipping

An online test application that auto-administers, grades, and displays answers to online exams or surveys

An additional value to this book is an online resource (http: //www.serve.com/hotsyte/) that discusses the applications and points to other resources. With its focus on providing practical real-world solutions for Webmasters, "JavaScript Application Cookbook" is destined to become a staple for every JavaScript developer, regardless of experience.

"I was a nerd. Geek. From fairly early on. I didn't duct-tape my glasses together, but I might as well have, because I had all the other traits. Good at math, good at physics, and with no social graces whatsoever. And this was before being a nerd was considered to be a good thing."

In this witty and engrossing narrative, Linus Torvalds, the brilliant mastermind behind the latest Internet revolution, in collaboration with writer David Diamond, chronicles his transformation from a pale, skinny Helsinki college kid to an international folk hero. What began as a childhood hobby soon became the astonishing phenomenon known as the LINUX operating system.

LINUX was created because Linus was curious to see if he could improve upon the operating systems already out there, such as UNIX. How could he create a system that could run all of his favorite software with fewer crashes and faster productivity? Linus posted his early versions of LINUX on the Internet and called upon the most brilliant minds in computer science to enhance his system. What happened next took the world by storm.

Linus wasn't the first to use the power of the open source movement, but the excitement he generated when he offered his system to the world was unprecedented. What made LINUX revolutionary was its journey to become the marvel it is today — and how the system grew from the meeting of thousands of minds around the world. Suddenly, Linus's creation was available for everyone to use, for free! Anyone could improve LINUX at whim. No monopolies, no trade secrets, no whispering behind closed doors. LINUX wasn't controlled by a select few — this remarkable creation was accessible to absolutely anyone — and still is. The LINUX system is still constantly evolving and improving every day a decade after its inception. Linus describes the history of LINUX in graspable terms and details how the system itself works, without lapsing into mindboggling technical jargon.

Part autobiography and part business philosophy, Just for Fun brims with biographical detail about the radical spirit and creativity of Linus Torvalds. It offers a unique glimpse into the mind of an accidental revolutionary and how the altruistic creation of LINUX flourished so successfully in the open source movement.

For general readers, Torvalds spins a witty tale of his fascinating life. Here is the story of a young man who, as a still-rising star, keeps his feet on the ground through a combination of self-deprecating humor and the realization that life is simply about having a good time. Linus's narrative teems with clever anecdotes and his captivating opinions on the future of competition in the computer world. Linus even reveals his own take on the meaning of life.

For techies, this is a candid glimpse at the life of this honored, yet unintentional hero. Linus offers a compelling look at how he sees the road ahead for LINUX and the computer industry. He also divulges how LINUX began as a small spark and spread like wildfire across the world.

Although he's the first to admit that roaring down the freeway in his shiny new BMW has its benefits, Linus never intentionally sought fame and fortune. Yet both found him when Linus Torvalds radically changed the world of technology for one selfish reason: He did it just for fun.