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Nagios: Building Enterprise-Grade Monitoring Infrastructures for Systems and Networks

Nagios: Building Enterprise-Grade Monitoring Infrastructures for Systems and Networks

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About the Book

The Fully Updated Guide to Enterprise Network Monitoring with Today’s Nagios Platform and Tools   This is the definitive guide to building cost-effective, enterprise-strength monitoring infrastructures with the latest commercial and open source versions of Nagios. World-renowned monitoring expert David Josephsen covers the entire monitoring software stack, treating Nagios as a specification language and foundation for building well designed monitoring systems that can scale to serve any organization.   Drawing on his unsurpassed experience, Josephsen demonstrates best practices throughout and also reveals common mistakes, their consequences, and how to avoid them. He provides all the technical depth you need to configure and run Nagios successfully, including a practical and thorough discussion of writing your own custom modules with the C-based Nagios Event-Broker API.   Extensively updated throughout, this edition adds an entirely new chapter on scaling Nagios for large, complex networks that rely heavily on virtualization and cloud services. Josephsen thoroughly introduces Nagios XI, the advanced new commercial version of Nagios and shows how to improve productivity with the latest third-party tools and plug-ins.   Coverage includes: Learn how Nagios works, in depth Master focused, efficient techniques for configuring and deploying the latest versions of Nagios Solve real-world problems in monitoring Windows and UNIX systems, networking hardware, and environmental sensors Systematically scale and optimize Nagios for the largest enterprise environments Enhance your monitoring system with new tools including Check-MK, Op5 Merlin, and SFlow Integrate visualization via Ganglia, Graphite, and RRDTool Simplify and streamline all facets of system monitoring with Nagios XI Build powerful custom Nagios Event Broker (NEB) modules, step-by-step Learn about easy-to-understand code listings, fully updated for today’s platforms No matter how complex your systems monitoring challenges are, this book will help you achieve the results you want—right from the start.  

Table of Contents:
Foreword by the Nagios Creator, Ethan Galstad    xiii Introduction    1 Do It Right the First Time    1 Why Nagios?    2 What’s in This Book?    4 Who Should Read This Book?    7 End Notes    7 CHAPTER 1  Best Practices    9 A Procedural Approach to Systems Monitoring    9 Processing and Overhead    12 Remote Versus Local Processing    12 Bandwidth Considerations    13 Network Location and Dependencies    14 Security    16 Silence Is Golden    19 Watching Ports Versus Watching Applications    20 Who’s Watching the Watchers?    21 End Notes    22 CHAPTER 2  Theory of Operations    23 The Host and Service Paradigm    24 Starting from Scratch    24 Hosts and Services    26 Interdependence    26 The Downside of Hosts and Services    27 Plug-ins    28 Exit Codes    28 Remote Execution    31 Scheduling    34 Check Interval and States    34 Distributing the Load    36 Reapers and Parallel Execution    38 Notification    39 Global Gotchas    39 Notification Options    40 Templates    41 Time Periods    41 Scheduled Downtime, Acknowledgments, and Escalations    42 I/O Interfaces Summarized    43 The Web Interface    43 Monitoring    45 Reporting    46 The External Command File    48 Performance Data    48 The Event Broker    49 End Notes    50 CHAPTER 3  Installing Nagios    51 OS Support and the FHS    51 Installation Steps and Prerequisites    53 Installing Nagios    54 Confi gure    54 Make    55 Make Install    56 Installing the Plug-ins    57 Installing NRPE    59 End Notes    60 CHAPTER 4  Confi guring Nagios    61 Objects and Defi nitions    62 nagios.cfg    64 The CGI Confi g    67 Templates    68 Timeperiods    70 Commands    71 Contacts    73 Contactgroup    74 Hosts    75 Services    77 Hostgroups    79 Servicegroups    79 Escalations    80 Dependencies    81 Extended Information    83 Apache Confi guration    83 GO!    85 End Notes    85 CHAPTER 5  Bootstrapping the Nagios Confi g Files    87 Scripting Templates    87 Autodiscovery    91 Check_MK    91 Nagios XI    92 Autodiscovery Is Dead: Long Live Autodiscovery    92 NagiosQL    92 CHAPTER 6  Watching: Monitoring Through the Nagios Plug-ins    95 Local Queries    95 Pings    96 Port Queries    98 Querying Multiple Ports    100 (More) Complex Service Checks    102 E2E Monitoring with WebInject and Cucumber-Nagios    104 Watching Windows    111 The Windows Scripting Environment    111 COM and OLE    113 WMI    113 To WSH or Not to WSH    118 To VB or Not to VB    119 The Future of Windows Scripting    119 Getting Down to Business    121 NRPE    122 Check_NT    123 NSCP    124 Watching UNIX    125 NRPE    125 CPU    126 Memory    129 Disk    130 Check_MK    131 Watching “Other Stuff”    135 SNMP    135 Working with SNMP    137 Environmental Sensors    142 Standalone Sensors    143 LMSensors    144 IPMI    145 End Notes    146 CHAPTER 7  Scaling Nagios    149 Tuning, Optimization, and Some Building Blocks    149 NRDP/NSCA    150 NDOUtils    150 Distributed Passive Checks with Secondary Nagios Daemons    150 Event Broker Modules: DNX, Merlin, and Mod Gearman    153 DNX    154 Mod Gearman    156 Op5 Merlin    157 Distributed Dashboards: Fusion, MNTOS, and MK-Multisite    159 CHAPTER 8  Visualization    167 Nagios Performance Data    168 RRDTool: The Foundation    168 Enter RRDTool    170 RRD Data Types    171 Heartbeat and Step    172 Min and Max    174 Round Robin Archives    174 RRDTool Create Syntax    175 RRDTool Graph Mode    180 RPN    182 Data Visualization Strategies: A Tale of Three Networks    185 Suitcorp: Nagios, NagiosGraph, and Drraw    185 singularity.gov: Nagios and Ganglia    192 Massive Ginormic: Nagios, Logsurfer, Graphite, and Life After RRDTool    200 DIY Dashboards    209 Know What You’re Doing    210 RRDTool Fetch Mode    212 The GD Graphics Library    214 NagVis    215 GraphViz    217 Sparklines    218 Force Directed Graphs with jsvis    220 End Notes    221 CHAPTER 9  Nagios XI    223 What Is It?    223 How Does It Work?    224 What’s in It for Me?    226 One Slick Interface    226 Integrated Time Series Data    227 Modularized Components    228 Enhanced Reporting and Advanced Visualization    228 Integrated Plug-ins and Confi guration Wizards    230 Operational Improvements    234 How Do I Get My Hands on It?    235 CHAPTER 10  The Nagios Event Broker Interface    237 Function References and Callbacks in C    237 The NEB Architecture    239 Implementing a Filesystem Interface Using NEB    242 DNX, a Real-World Example    255 Wrap Up    258 End Notes    259 Index    261  


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Product Details
  • ISBN-13: 9780133135725
  • Binding: Digital download
  • No of Pages: 304
  • Weight: 1 gr
  • ISBN-10: 0133135721
  • Language: English
  • Sub Title: Building Enterprise-Grade Monitoring Infrastructures for Systems and Networks


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