KVM Virtualization, VMM, and Spice on Ubuntu
Linux Kernel Virtualization is a great and free tool for running a virtual environment for a home lab or small business. Linode and Digital Ocean, two of the most popular independent Virtual Hosting Providers, both use KVM (with a lot of custom in house tooling). While it is powerful and free it isn't always as slick and polished as VMWare Workstation on Windows.
Watts to Lumens
A Handy translation between Incandescent Watts and Lumens
OWASP CRS 3.0 and ModSecurity Presentation March 2017
Philadelphia Linux Users Group OWASP CRS, March 2017.
How I finally got my car's radio to play mp3 files in the correct order.
The dealer's conclusion was that my files must be defective.
Living With Network Manager
In modern Gnome Desktop environments it can be really hard to get rid of gnome-network-manager, the other option is to configure it.