1-888-310-4540 (main) / 1-888-707-6150 (support) info@spkaa.com
Select Page

Creating a Custom Nagios Plugin

Published by Mike Solinap
on April 13, 2012

Nagios is an invaluable tool to help monitor a customer’s infrastructure.  Last year, I explained how easy it was to be able to integrate Network Appliance health checks.  In fact, Nagios provides a plethora of out of the box plugins.  Additional plugins are available via the Nagios Exchange site.  The most common applications and protocols can be monitored without any additional software or custom coding.  However, Nagios is just as easily extensible for any checks that you’d like to perform that aren’t readily available.

As part of SPK’s network management service, we find that all customers have very specific environments.  Not only is it common to find custom applications, but customers may also require a varying level of visibility into those apps.  For instance, the out of the box check_http script not only can verify connectivity to a web server, but it also can verify a specific string that should be returned.  But what we if we want dive much deeper?  Can we tell if the application throws any critical back-end errors during the login attempt?  What if logins never fail, but performance slowly degrades?  How can we be alerted to such situations?

These situations call for functionality beyond what the out-of-the box plugins can provide.  Writing a custom plugin might sound like a daunting task, but if you follow my simple guidelines and troubleshooting steps, you’ll be off and running in no time.  Read further on how you can create your own custom Nagios plugins.

Have a special situation that requires monitoring?  Let me know how I can help you integrate a Nagios monitoring solution.

Mike Solinap
Sr. Systems Integrator
SPK & Associates

Latest White Papers

Three Trends Are Transforming The Service Desk

Three Trends Are Transforming The Service Desk

Your IT service desk is about to change. Find out what's shaping the future. Three factors — enterprise service management (ESM), collaboration, and intelligent service management — are driving the transformation of the service desk. To better meet customers’ needs...

Related Resources

Extending CloudBees SDA Analytics

Extending CloudBees SDA Analytics

CloudBees SDA Analytics has more power than you think One of the main features of CloudBees SDA is CloudBees Analytics, powered by ElasticSearch. It’s a powerful tool for displaying continuous integration data and there are loads of useful metrics available from...

How To Add More Disk Space To Your Redhat Server Without Reformatting

How To Add More Disk Space To Your Redhat Server Without Reformatting

(Originally published in 2012, updated January 2022.) One of the common tasks for any system administrator is managing disk space on a server. A common question is how to increase disk space on a linux system. I won't go into a boring lecture on why managing disk...

The Power of CloudBees Procedures

The Power of CloudBees Procedures

What are Procedures in CloudBees SDA? In CloudBees SDA, procedures are the basis for reusable code. Any engineer familiar with setting up CD pipelines knows the irritation of re-coding the same task in a multitude of different ways for different teams. With...