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  • Book Overview & Buying Learning Nagios 4
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Learning Nagios 4

Learning Nagios 4

By : Wojciech Kocjan
4.2 (10)
Buy this Book
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Learning Nagios 4

Learning Nagios 4

4.2 (10)
By: Wojciech Kocjan
Buy this Book

Overview of this book

Table of Contents (19 chapters)
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Learning Nagios 4
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Learning Nagios 4
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Introducing Nagios
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Introducing Nagios
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Understanding the basics of Nagios
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Soft and hard states
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What's new in Nagios 4.0
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Summary
2
Installing Nagios 4
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Installing Nagios 4
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Installation
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Configuring Nagios
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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 downtime
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Managing comments
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Nagios information
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Generating reports
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Changing the look of the Nagios web interface
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Third-party Nagios web interfaces
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Summary
4
Using the Nagios Plugins
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Using the Nagios Plugins
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Understanding how checks work
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Monitoring using the standard network plugins
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Monitoring the e-mail servers
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Monitoring network services
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Monitoring the database systems
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Monitoring the storage space
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Monitoring the resources
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Monitoring other operations
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Additional and third-party plugins
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Summary
5
Advanced Configuration
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Advanced Configuration
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Creating maintainable configurations
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Configuring the file structure
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Defining the dependencies
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Using the templates
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Using the custom variables
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Understanding flapping
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Summary
6
Notifications and Events
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Notifications and Events
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Creating effective notifications
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Understanding escalations
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Sending commands to Nagios
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Creating event handlers
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Using adaptive monitoring
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Summary
7
Passive Checks and NSCA
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Passive Checks and NSCA
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Understanding passive checks
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Using NSCA
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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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Monitoring using NRPE
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Comparing NRPE and SSH
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Alternatives to SSH and NRPE
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Summary
9
Monitoring using SNMP
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Monitoring using SNMP
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Introducing SNMP
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Working with SNMP and MIB
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Setting up an SNMP agent
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Using SNMP from Nagios
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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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Understanding distributed monitoring
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Using templates for distributed monitoring
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Summary
11
Programming Nagios
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Programming Nagios
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Introducing Nagios customizations
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Programming in C with libnagios
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Creating custom active checks
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Checking websites
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Virtualization and clouds
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Writing commands to send notifications
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Managing Nagios
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Summary
12
Using the Query Handler
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Using the Query Handler
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Introducing the query handler
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Using the core service
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Introducing Nagios Event Radio Dispatcher
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Summary
1
Index
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Index

Managing downtime

Nagios allows using the web interface to manage scheduled downtimes for hosts and services. This includes listing, adding, and deleting downtimes for both hosts and services.

Checking downtime statuses

The Nagios web interface allows listing all scheduled downtimes. This page can be accessed by clicking on the Downtime link on the left-hand menu. The following is a screenshot of the page:

The page consists of two pages of all scheduled downtimes, for hosts and services separately. You can delete a downtime by clicking on the trash icon on the right, in the row that describes this particular downtime entry.

Downtimes can be triggered by other downtimes. When a host downtime is scheduled, Nagios automatically adds downtimes for all child hosts.

Scheduling downtime

In order to schedule a downtime, open a host or service information page and use the Schedule downtime for this host or Schedule downtime for this service options. It is also possible to use the downtime page to schedule...

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Learning Nagios 4
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