Notifications and Events | Learning Nagios 4

Sign In Start Free Trial

Book Overview & Buying
Table Of Contents
Feedback & Rating

Learning Nagios 4

By : Wojciech Kocjan

4.2 (10)

Learning Nagios 4

4.2 (10)

By: Wojciech Kocjan

Overview of this book

Learning Nagios 4

Learning Nagios 4

Credits

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

Introducing Nagios

Introducing Nagios

Understanding the basics of Nagios

Soft and hard states

What's new in Nagios 4.0

Summary

Installing Nagios 4

Installing Nagios 4

Installation

Configuring Nagios

Summary

Using the Nagios Web Interface

Using the Nagios Web Interface

Setting up the web interface

Using the web interface

Managing hosts

Managing services

Managing downtime

Managing comments

Nagios information

Generating reports

Changing the look of the Nagios web interface

Third-party Nagios web interfaces

Summary

Using the Nagios Plugins

Using the Nagios Plugins

Understanding how checks work

Monitoring using the standard network plugins

Monitoring the e-mail servers

Monitoring network services

Monitoring the database systems

Monitoring the storage space

Monitoring the resources

Monitoring other operations

Additional and third-party plugins

Summary

Advanced Configuration

Advanced Configuration

Creating maintainable configurations

Configuring the file structure

Defining the dependencies

Using the templates

Using the custom variables

Understanding flapping

Summary

Notifications and Events

Notifications and Events

Creating effective notifications

Understanding escalations

Sending commands to Nagios

Creating event handlers

Using adaptive monitoring

Summary

Passive Checks and NSCA

Passive Checks and NSCA

Understanding passive checks

Using NSCA

Summary

Monitoring Remote Hosts

Monitoring Remote Hosts

Monitoring over SSH

Monitoring using NRPE

Comparing NRPE and SSH

Alternatives to SSH and NRPE

Summary

Monitoring using SNMP

Monitoring using SNMP

Introducing SNMP

Working with SNMP and MIB

Setting up an SNMP agent

Using SNMP from Nagios

Summary

Advanced Monitoring

Advanced Monitoring

Monitoring Windows hosts

Understanding distributed monitoring

Using templates for distributed monitoring

Summary

Programming Nagios

Programming Nagios

Introducing Nagios customizations

Programming in C with libnagios

Creating custom active checks

Checking websites

Virtualization and clouds

Writing commands to send notifications

Managing Nagios

Summary

Using the Query Handler

Using the Query Handler

Introducing the query handler

Using the core service

Introducing Nagios Event Radio Dispatcher

Summary

Index

Index

Customer Reviews

4.2 (10)

5 star

70%

4 star

10%

3 star

0%

2 star

10%

1 star

10%

Chapter 6. Notifications and Events

We already know how notifications work in Nagios. The previous chapters described how Nagios sends information to the users when a problem occurs and how it decides to notify people. Previously, our examples were limited to sending an e-mail 24 hours a day or only during working days.

In this chapter, we will cover the following topics:

Setting up notifications effectively—when they should be sent; how they should be sent; and how to use multiple methods of notifying users, such as setting up Nagios to send a text message to your mobile during the day or to send you a message on Jabber or HipChat only when you are online
Using escalations that allow sending information about the host or service status when it is failing for a long period of time—for example, notifying a manager when a critical service has been down for over four hours
Sending commands via the Nagios external commands, such as adding comments on hosts and services, modifying notification settings...

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Learning Nagios 4

Search

Your notes and bookmarks