Luis Muñoz

A space of my own

Let's Encrypt Proxy DNS Authentication

Certain use cases preclude DNS dynamic updates to a zone for technical, policy or other reasons. This post explains a simple way to enable automatic DNS-based authorization for Let’s Encrypt certificates – and perhaps for other vendors’ – by way of delegating the authorization challenge to a trusted DNS zone.

DNS with Dynamic Updates

I manage my own DNS servers for my personal projects and some of the causes I support. This gives me absolute control over the operation. Recently I decided to return to a 100% dynamically updated setup – where records can be added securely and in real time from anywhere. This post includes some notes on how to do this easily.

Handling Database Schema Changes

Most of the applications I work with involve storing, transforming and querying data from relational databases. Over the years I’ve developed a pattern to manage those changes that has proven to be helpful, involving a minimum of universally available tools. This post introduces this pattern in the hopes that it becomes useful for others.

Updated Shopping List for 2018

This is an updated shopping list for the quads I’ve built for my 2018 flying season. It’s based on lessons learned during 2017, and I’ll be discussing the results and reasoning behind each part. Hopefully you’ll find this useful if you’re building a new quad or three and want to save some money.

Safeguarding your website visitors

This post discusses various additions in your website configuration that help protect your visitors from various forms of attack. While not really a requirement for most personal sites such as this, hopefully the discussion below will be of help to people in charge of more sensitive sites.