Look for the 'Out of memory' string in the /var/log/kern.log file. Its presence indicates the OOM Killer was activated. For more information: http://en.wikipedia.org/wiki/Out_of_memory

Others

check_jenkins_slaves

A Nagios plugin that check the status of slaves of a Jenkins instance.

Components

Performance Data Tool

The purpose of the Performance Data Tool is to give you the ability to view and manipulate the .rrd and .xml performance data files on…

Bacula

Bacula PostgreSQL Nagios monitor

Nagios monitor for Bacula with Postgresql database written in Python. Depends on PSYCOPG2 Python module for database connection.

2012 Nagios World Conference Presentations

Nagios Conference 2012 – Fernando Honig – Nagios Distributed Monitoring for Web Applications

Fernando Honig's presentation on using Nagios in distributed environments.

External Commands

autoScheduledDowntime.pl

The autoScheduledDowntime-Script can be used to schedule periodically Nagios Downtimes. First fill the Configfile with your Hosts/Services for wich you want to set a downtime…

Cloud

Mysql service monitoring

This script is used to monitor mysql service status.

2012 Nagios World Conference Presentations

Nagios Conference 2012 – Mike Guthrie – Nagios Fusion 2012

Mike Guthrie's presentation on Nagios Fusion 2012.

2012 Nagios World Conference Presentations

Nagios Conference 2012 – Mike Weber – 10 Quick Steps To Disaster

Mike Weber's presentation on using Nagios and preventing disasters in your configuration.

VMWare

Monitor old snapshot within a VMWare data-center.

Very basic PowerCLI script for monitoring snapshots in a datacenter. Couldn't find anything similar, so i decided to share it with you.

Other Tutorials And HOWTOs

Nagios Plugin To Check an OCSP Server

This is a nagios plugin to check an OCSP server. It does so by having either a PEM encoded certificate in the code, and the…

Tutorials

installing-nagios-3-4-4-in-centos-6-3

Installing new 3.4.4 nagios version in CentOS 6.3 or Red Hat 6.3 http://sharadchhetri.com/2013/02/27/installing-nagios-3-4-4-in-centos-6-3/

BackupPC

check_backuppc_shares

A nagios plugin for backuppc. Has a few options.

Network and Systems Management

check_ncpa

A plugin meant to use with the new NCPA agent.

Cloud

Check Flume Agent Service

This script is to monitor Health check for Flume Agent Service.

2012 Nagios World Conference Presentations

Nagios Conference 2012 – Nicholas Scott – Netflow Monitoring and SNMP Trap Management With Nagios

Nicholas Scott's presentation on Netflow and SNMP Trap monitoring with Nagios.

Dashboards

Better Apache Dashboard

The "Better Apache Dashboard" also know as the 5 minute dashboard as presented at the 2014 Nagios World Conference. View the conference slides at http://www.nagios.com/events/nagiosworldconference/northamerica/2014/speakers#Scott-Wilkerson

Cloud

check_vmware_view_sessions

this is a simple power shell script that check vmware view active sessions using NSClient++ client on Windows 2008

Apache Tomcat

check_TomcatApplication updated

This is an updated version of : http://localhost/directory/Plugins/Java-Applications-and-Servers/Apache-Tomcat/check_TomcatApplication/details The reason for my update was the script was very useful but did not generated any graphical…