Bike shares have become increasingly popular as a supplement to public transportation in major cities, and present a convenient alternative to lugging your own bike…
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Published May 7, 2019
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Published December 25, 2018
Running Humio on OpenShift
The other day I wanted to test Humio on OpenShift, but I ran into some problems. Mainly due to OpenShift’s reluctance to run containers as…
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Published June 21, 2018
Improve your PagerDuty to Microsoft Teams integration using Azure Functions
Please note: I have seen issues indicating that this solution is not production ready (when on a Subscription Plan). Errors include multiple alert messages per…
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Published January 7, 2018
Sensu plugin deployment using Git and regular checks (Linux/Windows)
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…
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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…
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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…
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Published June 1, 2017
Using LibreNMS for server OS monitoring, part 3: The aggregate CPU alert hack
Important! This fix is not applicable to later versions of LibreNMS. Please refer to the article comments below. (Updated February 2019) At the moment, LibreNMS…
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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…
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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…
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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…
105 Comments