Nagios XI is extremely flexible, perhaps more flexible than most people realize!
To showcase the flexibility of Nagios XI, President and Founder of Nagios – Ethan Galstad, has developed the plugin Doomsday Check to monitor an arbitrary doomsday date (of your choosing) with customizable warning and critical thresholds.
Although this plugin may not be very practical in a networking environment, it’s fun to play around with and is definitely worth a try.
If you would like to use this plugin, simply download it here to your plugins directory (/usr/local/nagios/libexec/), make it executable (`chmod +x check_doomsday.php`), and create a service for it.
You can find more information on how to manage plugins in Nagios XI in this document. If you are an XI customer you may also watch this video.
If you are new to Nagios XI, you can test drive it free for 60 Days by downloading the trial.
Also, the Nagios World Conference is fast approaching! Register here today!
Every once in a while, a new database pushes to the front of the news. These databases generally bring a renewed schema and some neat tricks and features others may not offer. Due to the increasing popularity of MongoDB NoSQL databases, we have designed two new wizards for use with Nagios XI 2014: the MongoDB Database Wizard, and MongoDB Server Wizard. Continue reading ‘Monitoring Your MongoDB Database and Server with the New Wizards in Nagios XI 2014’
The sensorProbe2, sensorProbe4, sensorProbe8 and Probe8-X20 are intelligent devices for monitoring environmental variables, power, physical threads and security. Various AKCP intelligent sensors can be connected via the RJ45 connectors to the sensorProbe devices.
I would like to show you how easy it is to monitor a Dual Temperature/Humidity AKCP Sensor in Nagios XI via SNMP active checks and SNMP traps.
Continue reading ‘Monitoring AKCP sensorProbe2 with Nagios XI Using SNMP’
When active agent-based monitoring is not an option (because of a firewall, or security restriction), passive monitoring can provide the solution necessary to maintain network security and health. Today we will be discussing Nagios Remote Data Sender (NRDS) and how it can monitor Linux machines using passive check results. Passive results are sent to the Nagios Remote Data Processor (NRDP) server and processed in Nagios XI.
The NRDS client configuration can be managed centrally via the NRDS Config Manager Component in Nagios XI. Updated configuration files on the NRDS server are automatically picked up by all clients. The NRDS client runs on a cron job at a specified interval. Each time it runs, it will do the following:
- Run all of the commands, specified in the config file
- Send the results back to the Nagios XI server
- Check if there is a new version of the configuration file on the Nagios XI server, and if there is one, it will download it
- Download all of the plugins it needs from the server and install them on the client
In this article, I will show you how you can start monitoring a Linux host passively in three easy steps.
Step 1 – Adding Configuration
Go to Admin -> Monitoring Config -> NRDS Config Manager, click on Create Config, and select Linux from the Operating System drop-down menu.
Continue reading ‘How to Passively Monitor Linux Machines with NRDS & Nagios XI’