Nagios Core Administration Cookbook电子书

Nagios Core Administration Cookbook

Table of Contents

Nagios Core Administration Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

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Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Understanding Hosts, Services, and Contacts

Introduction

Creating a new network host

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new HTTP service

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new e-mail contact

Getting ready

How to do it...

How it works...

There's more...

See also

Verifying configuration

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new hostgroup

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new servicegroup

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new contactgroup

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new time period

Getting ready

How to do it...

How it works...

There's more...

See also

Running a service on all hosts in a group

Getting ready

How to do it...

How it works...

There's more...

See also

2. Working with Commands and Plugins

Introduction

Finding a plugin

Getting ready

How to do it...

How it works...

There's more...

See also

Installing a plugin

Getting ready

How to do it...

How it works...

There's more...

See also

Removing a plugin

Getting ready

How to do it...

How it works...

There's more...

See also

Creating a new command

Getting ready

How to do it...

How it works...

There's more...

See also

Customizing an existing command

Getting ready

How to do it...

How it works...

There's more...

See also

Using an alternative check command for hosts

Getting ready

How to do it...

How it works

There's more...

See also

Writing a new plugin from scratch

Getting ready

How to do it...

How it works...

There's more...

See also

3. Working with Checks and States

Introduction

Specifying how frequently to check a host or service

Getting ready

How to do it...

How it works...

There's more...

See also

Changing thresholds for PING RTT and packet loss

Getting ready

How to do it...

How it works...

There's more...

See also

Changing thresholds for disk usage

Getting ready

How to do it...

How it works

There's more...

See also

Scheduling downtime for a host or service

Getting ready

How to do it...

How it works...

There's more...

See also

Managing brief outages with flapping

Getting ready

How to do it...

How it works...

There's more...

See also

Adjusting flapping percentage thresholds for a service

Getting ready

How to do it...

How it works...

There's more...

See also

4. Configuring Notifications

Introduction

Configuring notification periods

Getting ready

How to do it...

How it works...

There's more...

See also

Configuring notification for groups

Getting ready

How to do it...

How it works...

There's more...

See also

Specifying which states to be notified about

Getting ready

How to do it...

How it works...

There's more...

See also

Tolerating a certain number of failed checks

Getting ready

How to do it...

How it works...

There's more...

See also

Automating contact rotation

Getting ready

How to do it...

How it works...

There's more...

See also

Defining an escalation for repeated notifications

Getting ready

How to do it...

How it works...

There's more...

See also

Defining a custom notification method

Getting ready

How to do it...

How it works...

There's more...

See also

5. Monitoring Methods

Introduction

Monitoring PING for any host

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring SSH for any host

Getting ready

How to do it...

How it works...

There's more...

See also

Checking an alternative SSH port

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring mail services

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring web services

Getting ready

How to do it...

How it works...

There's more...

See also

Checking that a website returns a given string

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring database services

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring the output of an SNMP query

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring a RAID or other hardware device

Getting ready

How to do it...

How it works...

See also

Creating an SNMP OID to monitor

Getting ready

How to do it...

How it works...

There's more...

See also

6. Enabling Remote Execution

Introduction

Monitoring local services on a remote machine with NRPE

Getting ready

How to do it...

How it works...

There's more...

See also

Setting the listening address for NRPE

Getting ready

How to do it...

How it works...

See also

Setting allowed client hosts for NRPE

Getting ready

How to do it...

How it works...

There's more...

See also

Creating new NRPE command definitions securely

Getting ready

How to do it...

How it works...

There's more...

See also

Giving limited sudo privileges to NRPE

Getting ready

How to do it...

How it works...

There's more...

See also

Using check_by_ssh with key authentication instead of NRPE

Getting ready

How to do it...

How it works...

There's more...

See also

7. Using the Web Interface

Introduction

Using the Tactical Overview

Getting started

How to do it...

How it works...

There's more...

See also

Viewing and interpreting availability reports

Getting started

How to do it...

How it works...

There's more...

See also

Viewing and interpreting trends

Getting started

How to do it...

How it works...

There's more...

See also

Viewing and interpreting notification history

Getting started

How to do it...

How it works...

There's more...

See also

Adding comments on hosts or services in the web interface

Getting started

How to do it...

How it works...

There's more...

See also

Viewing configuration in the web interface

Getting started

How to do it...

How it works...

There's more...

See also

Scheduling checks from the web interface

Getting started

How to do it...

How it works...

There's more...

See also

Acknowledging a problem via the web interface

Getting started

How to do it...

How it works...

There's more...

See also

8. Managing Network Layout

Introduction

Creating a network host hierarchy

Getting ready

How to do it...

How it works...

There's more...

See also

Using the network map

Getting ready

How to do it...

How it works...

There's more...

See also

Choosing icons for hosts

Getting ready

How to do it...

How it works...

There's more

See also

Establishing a host dependency

Getting ready

How to do it...

How it works...

There's more...

See also

Establishing a service dependency

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring individual nodes in a cluster

Getting ready

How to do it...

How it works...

There's more...

See also

Using the network map as an overlay

Getting ready

How to do it...

How it works...

There's more...

See also

9. Managing Configuration

Introduction

Grouping configuration files in directories

Getting ready

How to do it...

How it works...

There's more...

See also

Keeping configuration under version control

Getting ready

How to do it...

How it works...

There's more...

See also

Configuring host roles using groups

Getting ready

How to do it...

How it works...

There's more...

See also

Building groups using regular expressions

Getting ready

How to do it...

How it works...

There's more...

See also

Using inheritance to simplify configuration

Getting ready

How to do it...

How it works...

There's more...

See also

Defining macros in a resource file

Getting ready

How to do it...

How it works...

There's more...

See also

Dynamically building host definitions

Getting ready

How to do it...

How it works...

There's more...

See also

10. Security and Performance

Introduction

Requiring authentication for the web interface

Getting ready

How to do it...

How it works...

There's more...

See also

Using authenticated contacts

Getting ready

How to do it...

How it works...

There's more...

See also

Writing debugging information to a Nagios log file

Getting ready

How to do it...

How it works...

There's more...

See also

Monitoring Nagios performance with Nagiostats

Getting ready

How to do it...

How it works...

There's more...

See also

Improving startup times with pre-cached object files

Getting ready

How to do it...

How it works...

There's more...

See also

Setting up a redundant monitoring host

Getting ready

How to do it...

How it works...

There's more...

See also

11. Automating and Extending Nagios Core

Introduction

Allowing and submitting passive checks

Getting ready

How to do it...

How it works...

There's more...

See also

Submitting passive checks from a remote host with NSCA

Getting ready

How to do it...

How it works...

There's more...

See also

Submitting passive checks in response to SNMP traps

Getting ready

How to do it...

How it works...

There's more...

See also

Setting up an event handler script

Getting ready

How to do it...

How it works...

There's more...

See also

Tracking host and service states with Nagiosgraph

Getting ready

How to do it...

How it works...

There's more...

See also

Reading status into a MySQL database with NDOUtils

Getting ready

How to do it...

How it works...

There's more...

See also

Writing customized Nagios Core reports

Getting ready

How to do it...

How it works...

See also

Getting extra visualizations with NagVis

Getting ready

How to do it...

How it works...

There's more...

See also

Index