Douglas Mauro; Kevin Schmidt Essential SNMP

ISBN 13: 9780596000202

Essential SNMP

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9780596000202: Essential SNMP

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.

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L'autore:

Douglas R. Mauro lives outside of Rochester, New York, with his wife Amy, daughter Kari, and cat Megabyte (a.k.a. Meg). He received a bachelor's degree at the University of Albany, New York, and worked as a system administrator for several years before becoming a project engineer with Sun Microsystems, Inc. In addition to his consulting duties with Sun, he authors their internal OneStop Sun Management Center page and has published several InfoDocs with them. Computers are not just a way of life for Douglas, but a profound passion. He feels extremely fortunate to be working in a field he truly loves.

Kevin J. Schmidt lives in Decatur, Georgia. He shares a home with his significant other, Callie, their loving cats, Chester and Twiggy, two Peruvian guinea pigs, two Litoria species White's tree frogs, and several poison dart frogs. Originally from Pensacola, Florida, Kevin spent several years studying computer science at the University of West Florida. In late 1996 he was recruited by MindSpring Enterprises (now known as Earthlink, Inc.), a national ISP based in Atlanta, and subsequently left school to pursue his career. He spent four years in network management and was the senior network management architect for Earthlink. He left Earthlink to work at Netrail, a tier-1 Internet backbone provider. While at Netrail, Kevin was in charge of the company's network management architecture. These days Kevin works as a software engineer for Guarded.Net, a network security start-up in Atlanta. Kevin's first computer was a Commodore 64. He began running Bulletin Board Systems (BBSs) at age 11 and later became interested in computer networking in general. His other computing interests include Linux, MySQL, and programming in C, Java, Perl, and PHP. Kevin will soon have his private pilot's license and plans to become instrument and multiengine rated soon thereafter. He recently discovered the LEGO® MINDSTORMS™ Robotics Invention System, where he uses Dave Baum's Not Quite C (NQC) for Linux to control his robotic creations.

Contenuti:

Preface; Audience for This Book; Organization; Example Programs; Conventions Used in This Book; Comments and Questions; Acknowledgments; Chapter 1: What Is SNMP?; 1.1 Network Management and Monitoring; 1.2 RFCs and SNMP Versions; 1.3 Managers and Agents; 1.4 The Structure of Management Information and MIBS; 1.5 Host Management; 1.6 A Brief Introduction to Remote Monitoring (RMON); 1.7 Getting More Information; Chapter 2: A Closer Look at SNMP; 2.1 SNMP and UDP; 2.2 SNMP Communities; 2.3 The Structure of Management Information; 2.4 Extensions to the SMI in Version 2; 2.5 A Closer Look at MIB-II; 2.6 SNMP Operations; 2.7 Host Management Revisited; 2.8 Remote Monitoring Revisited; Chapter 3: NMS Architectures; 3.1 Hardware Considerations; 3.2 NMS Architectures; 3.3 A Look Ahead; Chapter 4: SNMP-Compatible Hardware; 4.1 What Does SNMP-Compatible Really Mean?; 4.2 Is My Device SNMP-Compatible?; 4.3 Upgrading Your Hardware; 4.4 In the End; 4.5 A Look Ahead; Chapter 5: Network-Management Software; 5.1 SNMP Agents; 5.2 NMS Suites; 5.3 Element Managers (Vendor-Specific Management); 5.4 Trend Analysis; 5.5 Supporting Software; Chapter 6: Configuring Your NMS; 6.1 HP’s OpenView Network Node Manager; 6.2 Castle Rock’s SNMPc Enterprise Edition; Chapter 7: Configuring SNMP Agents; 7.1 Parameter Settings; 7.2 Security Concerns; 7.3 Agent Configuration Walkthroughs; Chapter 8: Polling and Setting; 8.1 Retrieving a Single MIB Value; 8.2 Retrieving Multiple MIB Values; 8.3 Setting a MIB Value; 8.4 Error Responses; Chapter 9: Polling and Thresholds; 9.1 Internal Polling; 9.2 External Polling; Chapter 10: Traps; 10.1 Understanding Traps; 10.2 Receiving Traps; 10.3 Sending Traps; Chapter 11: Extensible SNMP Agents; 11.1 Net-SNMP; 11.2 SystemEDGE; 11.3 OpenView’s Extensible Agent; Chapter 12: Adapting SNMP to Fit Your Environment; 12.1 General Trap-Generation Program; 12.2 Who’s Logging into My Machine? (I-Am-in); 12.3 Throw Core; 12.4 Veritas Disk Check; 12.5 Disk-Space Checker; 12.6 Port Monitor; Chapter 13: MRTG; 13.1 Using MRTG; 13.2 Viewing Graphs; 13.3 Graphing Other Objects; 13.4 Other Data-Gathering Applications; 13.5 Pitfalls; 13.6 Getting Help; Using Input and Output Octets; More on OpenView’s NNM; Using External Data; Adding a Menu to NNM; Profiles for Different Users; Using NNM for Communications; Net-SNMP Tools; Net-SNMP and MIB Files; Common Command-Line Arguments; Net-SNMP Command-Line Tools; SNMP RFCs; SMIv1 Data Definition Language; SMIv2 Data Definition Language; SNMPv1 Protocol; SNMPv2 Protocol; SNMPv3 Protocol; SNMP Agent Extensibility; SMIv1 MIB Modules; SMIv2 MIB Modules; IANA-Maintained MIB Modules; Related Documents; SNMP Support for Perl; MIB Management Routines; SNMP Operations; SNMPv3; Changes in SNMPv3; Configuring SNMPv3; Final Words on SNMPv3; Colophon;

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