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  • Book Overview & Buying Learning Nagios 3.0
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Learning Nagios 3.0

Learning Nagios 3.0

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Learning Nagios 3.0

Learning Nagios 3.0

4.2 (5)
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Overview of this book

Table of Contents (16 chapters)
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Learning Nagios 3.0
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Learning Nagios 3.0
Credits
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Credits
About the Author
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About the Author
About the Reviewer
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About the Reviewer
Preface
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Preface
Lock Free Chapter
1
Introduction
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Introduction
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Introduction to Nagios
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Benefits of Monitoring Resources
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Main Features
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Soft and Hard States
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What's New in Nagios 3.0?
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Summary
2
Installation and Configuration
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Installation and Configuration
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Installation
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Nagios Configuration
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Summary
3
Using the Nagios Web Interface
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Using the Nagios Web Interface
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Setting up the Web Interface
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Using the Web Interface
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Managing Hosts
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Managing Services
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Managing Downtimes
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Managing Comments
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Nagios Information
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Reports
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Summary
4
Overview of Nagios Plugins
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Overview of Nagios Plugins
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Standard Network Plugins
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Monitoring Email Servers
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Monitoring Network Services
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Monitoring Database Systems
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Storage Space
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Resource Monitoring
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Miscellaneous Plugins
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Summary
5
Advanced Configuration
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Advanced Configuration
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Maintainable Configurations
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Configuration File Structure
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Defining Dependencies
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Using Templates
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Custom Variables
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Flapping
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Summary
6
Notifications and Events
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Notifications and Events
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Effective Notifications
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Escalations
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External Commands
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Event Handlers
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Modifying Notifications
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Adaptive Monitoring
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Summary
7
Passive Checks and NSCA
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Passive Checks and NSCA
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What are Passive Checks?
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Configuring Passive Checks
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Passive Checks — Hosts
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Passive Checks — Services
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Troubleshooting Passive Checks
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What is NSCA?
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Obtaining NSCA
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Compiling NSCA
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Configuring the NSCA Server
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Sending results over NSCA
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Security Concerns
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Summary
8
Monitoring Remote Hosts
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Monitoring Remote Hosts
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Monitoring over SSH
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Configuring SSH
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Using the check_by_ssh Plugin
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Performing Multiple Checks
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Troubleshooting SSH-Based Checks
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Introduction to NRPE
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Obtaining NRPE
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Compiling NRPE
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Configuring the NRPE Daemon
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Installing NRPE as a System Service
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Configuring Nagios for NRPE
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NRPE and Command Arguments
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Other Approaches
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Troubleshooting NRPE
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Summary
9
SNMP
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SNMP
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Introduction to SNMP
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Data Objects
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Working with SNMP and MIB
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Graphical Tools
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Setting up an SNMP Agent
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Using SNMP from Nagios
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Receiving Traps
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Additional Plugins
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Summary
10
Advanced Monitoring
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Advanced Monitoring
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Monitoring Windows Hosts
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NSClient++
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Performing Tests via check_nt
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Performing Checks with NRPE Protocol
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Passive Checks using NSCA Protocol
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Distributed Monitoring
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Obsessive Notifications
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Configuring Nagios Instances
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Freshness Checking
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Summary
11
Extending Nagios
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Extending Nagios
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Introduction
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Active Checks
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Writing Plugins the Right Way
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Checking Websites
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Monitoring VMware
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Your Own Notifications
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Managing Nagios
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Using Passive Checks
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Summary

Chapter 2. Installation and Configuration

This chapter describes how to install Nagios and standard Nagios plugins. The process described here does not take advantage of any of the packaging systems that are currently available on the majority of operating systems.

It is recommended that you consult your operating system and software distribution mechanisms to see if they are already offering Nagios packages. Obtaining and installing Nagios as a binary distribution, suited to a particular platform, is always a better choice as it also offers automated upgrades and ensures that all dependencies are met.

Manual installation is recommended for system administrators who want more power over where their software is installed, and want to manage software upgrades and configurations on their own.

This chapter also covers the basics of Nagios configuration, and what types of objects can be configured.

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Learning Nagios 3.0
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