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Essential SNMP [Englisch] [Taschenbuch]

Douglas Mauro , Kevin Schmidt

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Kurzbeschreibung

23. September 2005
Simple Network Management Protocol (SNMP) provides a "simple" set of operations that allows you to more easily monitor and manage network devices like routers, switches, servers, printers, and more. The information you can monitor with SNMP is wide-ranging--from standard items, like the amount of traffic flowing into an interface, to far more esoteric items, like the air temperature inside a router. In spite of its name, though, SNMP is not especially simple to learn. O'Reilly has answered the call for help with a practical introduction that shows how to install, configure, and manage SNMP. Written for network and system administrators, the book introduces the basics of SNMP and then offers a technical background on how to use it effectively. Essential SNMP explores both commercial and open source packages, and elements like OIDs, MIBs, community strings, and traps are covered in depth. The book contains five new chapters and various updates throughout. Other new topics include: * Expanded coverage of SNMPv1, SNMPv2, and SNMPv3 * Expanded coverage of SNMPc * The concepts behind network management and change management * RRDTool and Cricket * The use of scripts for a variety of tasks * How Java can be used to create SNMP applications * Net-SNMP's Perl module The bulk of the book is devoted to discussing, with real examples, how to use SNMP for system and network administration tasks. 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. Once demystified, SNMP is much more accessible. If you're looking for a way to more easily manage your network, look no further than Essential SNMP, 2nd Edition.

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Essential SNMP + Sicheres Netzwerkmanagement: Konzepte, Protokolle, Tools (X.systems.press)
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Without Simple Network Management Protocol (SNMP), network administrators might have to actually get out of their chairs and go see what's up with all of the network-connected equipment under their authority. Perish the thought. Essential SNMP explains how the management protocol works and how it's implemented by several operating systems and pieces of equipment. More importantly, this book shows its reader--who should be a network administrator who's familiar with the problems of running a distributed network--how SNMP can earn its place as a network administration tool. In other words, this book examines SNMP as a strategic resource as well as a technical phenomenon.

Because it's oriented toward SNMP as a tool, much of the coverage in this book has to do with software that uses SNMP to provide network monitoring and control services. After a strengths-and-weaknesses overview of a number of SNMP packages, the authors use mainly HP OpenView, Castle Rock SNMPc, and Net-SNMP (the last in combination with Perl scripting) to demonstrate how SNMP works and how to take advantage of it. It's the scripting that really distinguishes this book from other SNMP books, by the way. It's integral to the authors' presentation, and the latter half of this book is packed with shell and Perl listings. --David Wall

Topics covered: Simple Network Management Protocol (SNMP) and its applicability as a network management tool. Details like object identifiers (OIDs), management information bases (MIBs), traps, and community strings are defined and explained. The configuration of SNMP agents is detailed for several software packages and operating systems, and the integration of SNMP and scripts (in shell languages and in Perl) is covered nicely. -- Dieser Text bezieht sich auf eine vergriffene oder nicht verfügbare Ausgabe dieses Titels.

Pressestimmen

"It is difficult to find fault with the content of the book... This is a solid textbook in the O'Reilly mould. The only criticism I have is an unfair one, I had difficulty staying awake whilst reviewing it, I find SNMP just about the driest subject in IT but this book will enable you to get though all the tedious configuration as fast as possible allowing you to move onto more interesting things that much sooner." - Greg Matthews, news@UK, June 2006

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In diesem Buch (Mehr dazu)
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Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis
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Amazon.com: 3.8 von 5 Sternen  26 Rezensionen
55 von 55 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Perfect for SNMP beginners and complicated networks 16. August 2001
Von Mark Lyman - Veröffentlicht auf Amazon.com
Format:Taschenbuch
I have been doing network/router/system administration for about 3 years, and I have never really had the time/opportunity/need to do SNMP. Our network grew to be very large very quickly (sites in africa, england, germany, canada, america) and it became neccesary to use SNMP to ease the administration somewhat. I first bought "A practical guide to SNMPv3 and Network Management" and could barely get past page 8 before I was totally lost. So I came back looking for "21 days" or "SNMP for dummies" book of which there are none. I found this book which recommends a good grasp of TCP/IP and that is about it. I have found this book to be the best book out there for someone with 0 to little experience with SNMP. It brought me all the way from ground 0 knowledge of SNMP to managing a network of about 100 routers with SNMP, including detecting DoS attacks, processor overload, interface changes, config changes etc.
I highly recommend this to anyone who is looking for a practical SNMP managed network, beginner or advanced.
18 von 19 Kunden fanden die folgende Rezension hilfreich
4.0 von 5 Sternen Good User Reference 7. Februar 2002
Von Shawn Boyce - Veröffentlicht auf Amazon.com
Format:Taschenbuch
This book is intended for people wanting to understand how to use SNMP such as adminstrators or managers. I bought this book because of its coverage of various NMS systems (such as HP OpenView NNM) and SNMP Agents.
The book provides coverage of SNMP and its operation in two chapters. It covers NMS configuration, Agent configuration, extensible Agents, MRTG. Also useful is its coverage of open source software for SNMP: Net-SNMP, SNMP Perl module, and MRTG.
The book could use more coverage of other open source and freely available SNMP software.
All in all, a good book. As usual, you can trust O'Reilly.
16 von 17 Kunden fanden die folgende Rezension hilfreich
3.0 von 5 Sternen 1/4 good 3. Mai 2007
Von lirakis - Veröffentlicht auf Amazon.com
Format:Taschenbuch
This book is good up till you get 1/4 of the way through it. The first quarter of the book is good and it goes over general SNMP stuff then history different versions etc. The last 3/4 of this book cover configuring proprietary monitoring systems like open view and solar winds.

I dont care about open view.. or solar winds.. i wanted to learn about snmp... not some vendors software package. Im suprised that this got published with such a general title.. when really the book is an snmp intro, followed by how to setup a proprietary monitoring tool.
7 von 7 Kunden fanden die folgende Rezension hilfreich
4.0 von 5 Sternen Good SNMP coverage, but I needed a little more help 1. September 2006
Von Richard Bejtlich - Veröffentlicht auf Amazon.com
Format:Taschenbuch
Essential SNMP, 2nd Ed (ES2E) fills a gap in being a modern book about an important management protocol. SNMP is used extensively by network management stations (NMS) like Nagios, which is now the subject of two independent books. E2SE does a good job covering SNMP issues important to administrators and NMS users. However, the book's organization and subject matter could be improved in the 3rd edition.

Initially I thought it was helpful to include Tethereal output of SNMP messages, but I realized it was very wasteful to include all of the packet headers above SNMP itself (i.e., Ethernet, IP, and UDP). Many pages could be removed, and the readability improved, by removing unnecessary material. The authors should also bold or highlight important parts of those messages, and maybe add inline callouts of descriptions to point out important parts of the protocol.

I liked E2SE because it gave balanced coverage to SNMP v1, v2c, and v3, more or less. The chapter on v1 and v2c (Ch 2) explored those protocols using tools bundled with Net-SNMP. Unfortunately, the same is not true for the chapter on v3 (Ch 3). This was disappointing, because SNMP v3 is most likely to confuse readers.

With respect to tools, I don't think it makes sense to use Net-SNMP apps to demonstrate SNMP in Ch 2, but wait to explain Net-SNMP in Ch 6. Sure, there is an appendix on Net-SNMP, but I think it would have made more sense to guide the reader through a setup of a Net-SNMP agent, and then use snmpget, snmpwalk, snmpset, and snmptrap to communicate with snmpd and snmptrapd. This would explain basic SNMP operations in a safe, non-production environment. With that base, readers could then learn about commercial NMS, perhaps taking a close look at programs like OpenView (covered extensively in ES2E).

I wish the book had offered more help with error messages. I frequently found myself searching the Web for help with configuring various components on Net-SNMP. I blogged much of my wanderings because SNMP ends up not being as "simple" as one might expect.

Overall, I think ES2E is a good book for those who want to learn more about SNMP. I would like to see the third edition address these concerns, especially with respect to SNMP v3 operation.
6 von 6 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Good SNMP Resource 18. Dezember 2001
Von Todd Hawley - Veröffentlicht auf Amazon.com
Format:Taschenbuch
Having a little familiarity with SMNP, I looked forward to reading this book. I wasn't disappointed as it's well-written and filled with excellent information, which I've always found to be true of O'Reilly books. What I enjoyed a lot about this book was its general look first off at what SMNP is, why it's important, SMNP managers and agents, how it in most cases works better with UDP as opposed to TCP, etc.
This book also describes the various types of Network Management Services architectures, the compatible hardware and network management software available, how to configure specific SMNP agents to monitor a specific device on a network, and how polling works, among other topics.
As always with O'Reilly books, there's a wealth of reference information at the back of the book (for example, Using Input and Output Octects, command line tools, and a list of SNMP RFC's to refer to for more information). If you're a sys admin or anyone else desiring to learn more about SMNP, this book covers a lot of important SMNP information.
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