Calling time on DNSSEC

Written on 02 Jun 2023, 11 min read.

I’m calling time on DNSSEC. Last week, prompted by a change in my DNS hosting setup, I began removing it from the few personal zones I had signed. Then this Monday the .nz ccTLD experienced a multi-day availability incident triggered by the annual DNSSEC key rotation process. This incident broke several of my unsigned zones, which led me to say very unkind things about DNSSEC on Mastodon and now I feel compelled to more completely explain my thinking:

co2mon.nz

Written on 18 Apr 2023, 7 min read.

Previously, I explained why ventilation monitoring is important, and the opportunity I see to help accelerate deployment of high quality ventilation monitoring for small businesses and organisations. In this post, I’m going to discuss my plans to tackle that opportunity: My journey to ventilation monitoring co2mon.nz: Ventilation monitoring as a service prototype Areas of development Next steps My journey to ventilation monitoring I started looking into ventilation monitoring in detail last year when I wanted to ensure that the classrooms of our local primary school were well ventilated during the Omicron outbreak.

Ventilation Monitoring

Written on 28 Mar 2023, 10 min read.

The importance of clean, fresh indoor air is one of the most tangible takeaways of the Covid-19 pandemic. In addition to being an effective risk mitigation strategy for reducing the spread of respiratory illnesses, clean, fresh air is necessary to enable effective cognitive performance. Monitoring indoor air quality is relatively easy to do, but traditionally has not been a key focus. I believe air quality monitoring should be accessible for any indoor space, and for highly occupied indoor spaces should be provided on a continuous basis.