Network Troubleshooting Tools

Help for Network Administrators

Author: Joseph D Sloan

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596551988

Category: Computers

Page: 368

View: 7320

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Over the years, thousands of tools have been developed for debugging TCP/IP networks. They range from very specialized tools that do one particular task, to generalized suites that do just about everything except replace bad Ethernet cables. Even better, many of them are absolutely free. There's only one problem: who has time to track them all down, sort through them for the best ones for a particular purpose, or figure out how to use them?Network Troubleshooting Tools does the work for you--by describing the best of the freely available tools for debugging and troubleshooting. You can start with a lesser-known version of ping that diagnoses connectivity problems, or take on a much more comprehensive program like MRTG for graphing traffic through network interfaces. There's tkined for mapping and automatically monitoring networks, and Ethereal for capturing packets and debugging low-level problems.This book isn't just about the tools available for troubleshooting common network problems. It also outlines a systematic approach to network troubleshooting: how to document your network so you know how it behaves under normal conditions, and how to think about problems when they arise, so you can solve them more effectively.The topics covered in this book include: Understanding your network Connectivity testing Evaluating the path between two network nodes Tools for capturing packets Tools for network discovery and mapping Tools for working with SNMP Performance monitoring Testing application layer protocols Software sources If you're involved with network operations, this book will save you time, money, and needless experimentation.
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Network+ Training Guide

Author: Drew Bird,Mike Harwood

Publisher: Que Publishing

ISBN: 9780789728302

Category: Computers

Page: 774

View: 2937

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Annotation The authoritative solution to passing the Network+ exam! Has CompTIAs Authorized Quality Curriculum (CAQC) stamp of approval. Features exam tips, study strategies, review exercises, case studies, practice exams, ExamGear testing software, and more. This exam certifies that candi20020822s know the layers of the OSI model, can describe the features and functions of network components and have the skills needed to install, configure, and troubleshoot basic networking hardware peripherals and protocols. The Network+ exam, developed by CompTIA, is only two years old but already is held by 50,000 individuals. Readers preparing for this exam will find our Training Guide series to be an indispensiblenbsp;self-study tool. This book is their one-stop shop because of its teaching methodology, the accompanying ExamGear testing software, and Web site support at www.quepublishing.com/certification. Drew Bird(MCNI, MCNE, MCT, MCSE, MCP+I) has been working in the IT industry for over 12 years, instructing for the past five. Drew has completed technical training and consultancy assignments for a wide variety of organizations including the Bank of England, The London Stock Exchange, Iomega and the United Nations. Mike Harwood(MCT, MCSE, A+) has 6+ years experience in IT. As well as training and authoring technical courseware, he currently acts as a system manager for a multi site network and performs consultancy projects for a computer networking company. As a team, they have written Network+ Exam Cram(Coriolis) and Network+ Exam Prep(Coriolis).
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Solaris 8 Administrator's Guide

Author: Dr. Paul Watters,Paul Watters

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596000738

Category: Computers

Page: 282

View: 9816

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"Solaris 8 Administrator's Guide" covers all aspects of deploying Solaris as a net-work server, including both basic and advanced network services. The book shows many examples of configuration files and third-party software installations, and delves more deeply into difficult conceptual material than do the Solaris reference manuals.
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Network+ Exam Prep 2

Author: Drew Bird,Mike Harwood

Publisher: Que Pub

ISBN: 9780789732552

Category: Computers

Page: 836

View: 3241

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The ultimate self-study guide for the latest Network+ exam, providing you with the most comprehensive reference available!
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Linux Network Administrator's Guide

Author: Tony Bautts,Terry Dawson,Gregor Purdy

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596005481

Category: Computers

Page: 338

View: 9916

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A guide to Linux networking covers such topics as TCP/IP, Apache, Samba, connecting with a serial line, running inetd superservers, logging in remotely, and setting up a nameserver.
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IPv6 Essentials

Author: Silvia Hagen

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596001254

Category: Computers

Page: 338

View: 6352

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Pv6 Essentials discusses all aspects of IPv6, the protocol that will be used increasingly in our IP-based networks. IPv4, probably the most important networking standard in use, is growing old. It was developed almost 30 years ago and isn't able to cope with the requirements of tomorrow's networks. IPv6 is the evolution of IPv4. The two protocols are expected to coexist in our networks for many years to come. Many interoperability and transition mechanisms have been developed to ensure a smooth transition. Topics covered in this book include : The IPv6 header, Extension headers, and everything you need to know about the extended 128-bit address format ; ICMPv6 and its functions, such as neighbor and router discovery, autoconfiguration, Path MTU discovery, and multicast group management ; Security elements available in IPv6 and the IPSEC framework ; Description of QoS elements available in IPv6, including different QoS architectures ; Designs of sample networks and an overview of Mobile IPv6 ; Routing protocols such as RIPng, OSPFv3, BGP, and IS-IS. DHCP, DNS, SLP, HTTP, and other upper-layer protocols for IPv6. Interoperability and transition mechanisms and scenarios. Quick-start guide to using IPv6 on different operating systems, such as Sun Solaris, Linux, and Windows, and on routers IPv6 Essentials offers a well-organized introduction to IPv6 for experienced network professionals, as well as for administrators, managers, and executives. It explains the new features and functions of IPv6 and shows the protocol in action, including packet trace files. The book also provides an overview of where the market is, how to register IPv6 address space, and how to get started. Even if you don't plan to roll out IPv6 tomorrow, this book will help you to determine the right moment to integrate it into your corporate network strategy.
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Essential System Administration

Tools and Techniques for Linux and Unix Administration

Author: Æleen Frisch

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596550493

Category: Computers

Page: 1178

View: 3919

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Essential System Administration,3rd Edition is the definitive guide for Unix system administration, covering all the fundamental and essential tasks required to run such divergent Unix systems as AIX, FreeBSD, HP-UX, Linux, Solaris, Tru64 and more. Essential System Administration provides a clear, concise, practical guide to the real-world issues that anyone responsible for a Unix system faces daily.The new edition of this indispensable reference has been fully updated for all the latest operating systems. Even more importantly, it has been extensively revised and expanded to consider the current system administrative topics that administrators need most. Essential System Administration,3rd Edition covers: DHCP, USB devices, the latest automation tools, SNMP and network management, LDAP, PAM, and recent security tools and techniques.Essential System Administration is comprehensive. But what has made this book the guide system administrators turn to over and over again is not just the sheer volume of valuable information it provides, but the clear, useful way the information is presented. It discusses the underlying higher-level concepts, but it also provides the details of the procedures needed to carry them out. It is not organized around the features of the Unix operating system, but around the various facets of a system administrator's job. It describes all the usual administrative tools that Unix provides, but it also shows how to use them intelligently and efficiently.Whether you use a standalone Unix system, routinely provide administrative support for a larger shared system, or just want an understanding of basic administrative functions, Essential System Administration is for you. This comprehensive and invaluable book combines the author's years of practical experience with technical expertise to help you manage Unix systems as productively and painlessly as possible.
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TCP/IP Network Administration

Help for Unix System Administrators

Author: Craig Hunt

Publisher: "O'Reilly Media, Inc."

ISBN: 9781449390785

Category: Computers

Page: 748

View: 1588

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This complete guide to setting up and running a TCP/IP network is essential for network administrators, and invaluable for users of home systems that access the Internet. The book starts with the fundamentals -- what protocols do and how they work, how addresses and routing are used to move data through the network, how to set up your network connection -- and then covers, in detail, everything you need to know to exchange information via the Internet.Included are discussions on advanced routing protocols (RIPv2, OSPF, and BGP) and the gated software package that implements them, a tutorial on configuring important network services -- including DNS, Apache, sendmail, Samba, PPP, and DHCP -- as well as expanded chapters on troubleshooting and security. TCP/IP Network Administration is also a command and syntax reference for important packages such as gated, pppd, named, dhcpd, and sendmail.With coverage that includes Linux, Solaris, BSD, and System V TCP/IP implementations, the third edition contains: Overview of TCP/IP Delivering the data Network services Getting startedM Basic configuration Configuring the interface Configuring routing Configuring DNS Configuring network servers Configuring sendmail Configuring Apache Network security Troubleshooting Appendices include dip, ppd, and chat reference, a gated reference, a dhcpd reference, and a sendmail reference This new edition includes ways of configuring Samba to provide file and print sharing on networks that integrate Unix and Windows, and a new chapter is dedicated to the important task of configuring the Apache web server. Coverage of network security now includes details on OpenSSH, stunnel, gpg, iptables, and the access control mechanism in xinetd. Plus, the book offers updated information about DNS, including details on BIND 8 and BIND 9, the role of classless IP addressing and network prefixes, and the changing role of registrars.Without a doubt, TCP/IP Network Administration, 3rd Edition is a must-have for all network administrators and anyone who deals with a network that transmits data over the Internet.
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