Nagios add host and write MySQL plugin

in the Nagios add monitored hosts and services on the server:

Nagios configuration file:

[Email protected] etc]# CD objects/

[[email protected] objects]# ls

commands.cfg (define monitoring commands) localhost.cfg (define what to monitor) switch.cfg (define switch) timeperiods.cfg (template file)

contacts.cfg (define a contact) printer.cfg (definition of printer template) templates.cfg (template customization file) windows.cfg (Monitoring Windows and their templates)

[Email protected] objects]# pwd

/usr/local/nagios/etc/objects

Add a host: [email protected] objects]# vim localhost.cfg

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Check the configuration file for errors:

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Restart the service and view (click Host ):

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Monitoring Services ( SSH ): [email protected] objects]# vim localhost.cfg

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[Email protected] objects]#/etc/init.d/nagios Reload

Running Configuration Check ...

Reloading Nagios configuration ...

Done

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Write plugin:

0 Normal

1 Warning

2 Critical Warning

One: Write a monitor this machine MySQL The plugin:

[Email protected] libexec]# vim Check_mysql

#!/bin/bash

MYSQL-E "Show Databases" &>/dev/null

If [$?-eq 0]

Then

echo "MySQL runing ..."

Exit 0

Else

echo "MySQL Stop"

Exit 2

Fi

Test Plug-ins ;

[Email protected] libexec]# chmod 755 check_mysql

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Two: Write a command to invoke the plugin

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Test Plug-ins:

[Email protected] objects]#/usr/local/nagios/libexec/check_mysql-h localhost

MySQL Stop

[[email protected] objects]#/etc/init.d/mysqld start

Start MySQL : [ OK ]

[Email protected] objects]#/usr/local/nagios/libexec/check_mysql-h localhost

MySQL runing .....

Write localhost.cfg file ;

[Email protected] objects]# vim localhost.cfg

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Test the configuration file for errors:

[Email protected] objects]#/usr/local/nagios/bin/nagios-v/usr/local/nagios/etc/nagios.cfg

[Email protected] objects]#/etc/init.d/nagios Reload

Running Configuration Check ...

Reloading Nagios configuration ...

Done

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This article is from the Cisco Experimental Linux blog, so be sure to keep this source http://1054054.blog.51cto.com/1044054/1613489

Nagios add host and write MySQL plugin