Netfuture: The future is networked

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Today, any device is networked, not only our personal devices, but anything from the fridge to the power plant. This implies endless possibilities, but also possibilities galore for anything to go wrong. Decades of thorough theoretical and hands-on experience enables me to guide you toward the right solution for anything networked. Learn more…

Recent technical essays

Intel BE201: Getting Bluetooth to work on my Vivobook 14 Flip with Linux2025-10-26
While trying to connect a Bluetooth device to my Asus Vivobook 14 Flip running under Debian Trixie, I noticed that Bluetooth did not work. Here’s an easy way to fix it.
Tablet mode unrecognized on Asus Vivobook 14 Flip under Linux: Workaround2025-10-18
My recently purchased Asus Vivobook 14 Flip (TP3407SA) does not flip into tablet (aka “slate”) mode when flipping the lid over. Here is a workaround for Gnome under Debian Trixie.
No sound on Asus Vivobook 14 Flip under Linux: Fixed2025-10-18
I recently purchased an Asus Vivobook 14 Flip (Model TP3407SA) for use under Linux. One of the obstacles I ran into: Playing sounds resulted in no audio, the device remained mute. However, it had worked under Windows. Time to investigate.
Obtaining TLS certificate information on the command line2025-10-15
Here are a few helpful commands if you want to inspect and dump certificates for analysis or debugging:
50 years of microprocessor trend data2024-10-13
I recently wrote a (German) article including this graphic (in German). Here is an English version of it. Have fun!
Compact Archive for WordPress2024-07-27
The default WordPress «Archive» block becomes very long and narrow, when months accumulate. Here is an easy way to make it more compact.
DEFCON Voting Village 23 Panel2024-02-12
There was a DEFCON Voting Village panel «If I can shop online, why can’t I vote online?» which I found extremely important to read or listen to. Not just for me, in fact, for anyone talking about electronic voting. Here… Read more: DEFCON Voting Village 23 Panel
Counting like a computer2024-01-27
Computers are very good at counting. But usually only within narrow limits. Here is an insight into where these limits come from and what goes wrong when they are exceeded.