One of Sensu’s strong points is how it executes plugins stored on remote client machines. But it means you need to have an automated deployment…
Leave a Comment
Published January 7, 2018
Overflow(); Posts
Published July 4, 2017
Upgrading Graphite on Ubuntu 14.04 (0.9.12.3 -> 0.9.15)
If you’ve installed Graphite from the default Ubuntu 14.04 (trusty) repositories, chances are you’ve got version 0.9.12-3 installed. And you might have stumbled upon performance…
Leave a Comment
Published June 3, 2017
Using LibreNMS for server OS monitoring, part 4: A simpler overview
LibreNMS is excellent at graphing metrics. But sometimes, getting a quick overview of the health of all your devices can be a bit troublesome. When…
1 Comment
Published June 1, 2017
Using LibreNMS for server OS monitoring, part 3: The aggregate CPU alert hack
At the moment, LibreNMS only allows for triggering reliable alerts on single CPU devices. If a system has multiple CPU’s, and you set up an…
3 Comments
Published May 30, 2017
Using LibreNMS for server OS monitoring, part 2: Alert rules
My greatest enemy is alert fatigue. Every time I receive a false positive alert from a monitoring system, I cringe. I try my best to…
Leave a Comment
Published May 14, 2017
Using LibreNMS for server OS monitoring, part 1: Basic configuration tweaks
After being an Observium user for several years, I recently made the switch to LibreNMS, an open source fork of Observium. If you’re unfamiliar with…
4 Comments
Published January 19, 2012
How to remotely enable/disable a LED on your Arduino using PHP and Processing
Just got your first Arduino, but you don’t have any additional hardware? Gotten a little tired of watching the LED blink by itself, with no…
104 Comments