DMVPN // Building a Scalable Multi-Tenant Phase-3 DMVPN Headend

For whatever reason, I end up supporting technology for a lot of events, some simultaneously. A lot of times, when you’re using Telepresence endpoints for events, remote hands-on labs, etc. you want to be able to have separation between events so that one group doesn’t break another group’s stuff. At the same time, I don’t want to have to be deploying 30 different routers in my DMZ for 30 different events; it’s just an administrative nightmare. Instead, what we opted for, was to use multi-tenanted DMVPN headend for site-to-site connectivity.

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Gist // Create Client Certificates with NGINX for use with Home Assistant

Another Gist that someone asked me to do. Here we use Nginx with self-signed client certificates to frontend Home Assistant (or really anything else)

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Gist // Install Kubernetes with Flannel Network Plugin on CentOS 7

Thought I would create a Gist and document installing Flannel with Kubernetes on CentOS

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Gist // Running NGINX and CertBot Containers on the Same Host

A lot of people run into the problem of running Let's Encrypt's CertBot Tool and an NGINX on the same container host. A big part of this has to do with CertBot needing either port 80 or 443 open for the tool to work as intended. This tends to conflict with NGINX as most people usually use port 80 (HTTP) or 443 (HTTPS) for their reverse proxy. Section 1 outlines how to configure NGINX to get this to work, and Section 2 is the Docker command to run CertBot.

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MQTT // An Intro to MQTT for IoT

Lately, I've been into building custom sensors and I've been talking to Farraday Robotech and he mentioned that it would be pretty helpful if I could do an introductory post about MQTT and its use in IoT applications.

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