I’ve recently started converting my old Nagios installs across to using CheckMK.  As part of this, I have a collection of old Nagios checks that I want to be able to use verbatim in CheckMK as legacy checks.  Here’s how you do that.

Installed Ubuntu in a VMware Workstation 12 VM, and can’t get desktop autosize working with open-vm-tools?  Here’s how to fix it.

The Garmin Fenix 3 watch is a sports/fitness/navigation watch with a lot of features.  A firmware update that came out a few months ago included a new Man Overboard feature, ostensibly intended so that the owner can hit a button on the watch and have it record the location so you can navigate back to it at sea.

There’s only a pretty short list of numbers that I care about having Caller ID name substitution enabled for on my Asterisk setup, so I elected to use Asterisk’s native database and some adjustments to my extensions to substitute in a name into the CALLERID(name) field.

When you want to run multiple processes in a single Docker container, there's a few ways to do this.  Launch scripts is one.  I chose to use Supervisord.  Supervisord has some cool features, but it's intended to manage processes that don't fork (daemonize) themselves.  If you have something that you want to run under Supervisord that you cannot stop from forking, you can use the following script to monitor it;

A useful little snippet.  This will concatenate multiple PDFs together into one;