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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
- Domains for Digital Sovereignty
Whether digital services work for you is no longer independent of where these services are operating from. This also applies to the Internet Domains. Here is a table of country dependencies of all the 1595 top-level domains. - Autistici/Inventati Sanctions Status
This documents the current WHOIS and DNS status of the autistici.org domain and their seemingly conflicting message as of 2026-09-05. - Intel BE201: Getting Bluetooth to work on my Vivobook 14 Flip with Linux
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: Workaround
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: Fixed
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 line
Here are a few helpful commands if you want to inspect and dump certificates for analysis or debugging: - 50 years of microprocessor trend data
I recently wrote a (German) article including this graphic (in German). Here is an English version of it. Have fun! - Compact Archive for WordPress
The default WordPress «Archive» block becomes very long and narrow, when months accumulate. Here is an easy way to make it more compact.
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Archiv
- 2026: 09
- 2025: 10
- 2024: 10 | 07 | 02 | 01
- 2023: 12 | 11 | 07 | 03 | 02 | 01
- 2022: 12 | 11 | 10 | 06 | 05 | 04 | 03 | 02 | 01
- 2021: 12 | 11 | 09 | 04 | 03
- 2020: 05
- 2019: 09 | 03 | 02
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- 2017: 11 | 09 | 08 | 07 | 06 | 05 | 03 | 02
- 2016: 10 | 09 | 08 | 07 | 06 | 03 | 02
- 2015: 09 | 05 | 04 | 03 | 02
- 2014: 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 01
- 2013: 11 | 10 | 09 | 08 | 07 | 06 | 03
- 2012: 11 | 10 | 09 | 07 | 05
- 2011: 11 | 10 | 06 | 03 | 02
- 2010: 11 | 05 | 04
- 2009: 08 | 07 | 05 | 04
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- 2004: 11 | 10 | 04 | 01
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- 1999: 09 | 08
- 1998: 09 | 06
- 1997: 08 | 05
- 1995: 09
- 1989: 07
Themen
Apache (4) Blockchain (17) Cloud Computing (4) Cloud Storage (12) Data Protection (5) Denial of Service (8) DNS (11) DNS-SD (6) DNSSEC (6) Fast Routers (20) Federated Services (6) Hash Tables (8) Identity Management (6) Internet of Things (8) Intrusion Detection (6) JSXC (10) Linux (23) Mac OS X (5) Mobile Networks (7) MPLS (4) Multicast (15) NAT traversal (4) Network Processors (4) NTP (6) NTS (6) Opportunistic Networks (9) Peer-to-Peer (23) Privacy (16) Quality of Service (9) Replication (4) Security (55) Service Discovery (5) Social Networks (8) Timestamps (6) TLS (8) TLS Interposer (6) Traffic Engineering (9) Trust (8) Ubuntu (7) Usability (6) Web Applications (11) WISEchat (5) XML (8) XMPP (11) Zeroconf (6)
Software
