My $169 development Chromebook

How Chrome OS, Termux, YubiKey & Duo Mobile make for great usable security Backstory In the last year while talking to respected security-focused engineers & developers, I've come to fully appreciate Google's Chrome OS design. The architecture benefited from a modern view of threat modeling and real-world attacks. For example,…

Barebones LetsEncrypt cron job

This is a barebones, simple LetsEncrypt cron job shell script to auto-refresh TLS (or SSL v 4 if you prefer) certificates. If you host your own site, the easiest solution is probably to run a Caddy web server and let it do the heavy lifting. But if you need a…

About

I'm an odd duck. My formal training is in computational neuroscience & clinical research, specifically around signal and image analysis, using machine learning for real-time classification and pattern recognition. Besides my research, much of my energy for the past several years has been focused on networks, public cloud infrastructure, and…