Thomas Steen Rasmussen / Tykling

I build and run systems, ideally using FreeBSD, Postgres and Django. I have a healthy interest in security, and I dabble in networking. I know a bit about DNS, email and other core internet standards.

I've built UncensoredDNS, Hushfile, Certgrinder and is widely considered the author of the best open source software noone uses. I am also one of the BornHack organisers.

I've spent most of my career in the ISP industry but I currently work as advisor and system architect at MindFuture, a small Danish tech startup.

URLs for Thomas Steen Rasmussen / Tykling

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Events for Thomas Steen Rasmussen / Tykling

After 12 years the UncensoredDNS service is disabling cleartext port 53 TCP/UDP DNS lookups permanently starting September 1st, 2022. Read this blogpost for more information.

To aid users in the transition to encrypted DNS I want to make guides a… Read more


  • Aug. 4, 2022, 4 p.m. - Aug. 4, 2022, 6 p.m.