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Web3 is just expensive P2P
Web3 claims to be the only way to save us from commercial entities defining what we can see and what not. Yet, it does exactly this: It results in commercialized entities defining what we can see and what not.
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Blockchain in a nutshell
People often try to claim blockchain use cases without much deliberation. Here is a condensed, quotable version of «Hitchhiker’s Guide to the Blockchain» and «Data lifecycle questions, not only for Blockchains».
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A business-driven blockchain evaluation flow chart
Yesterday, Rene Jan Veldwijk posted a blockchain decision flowchart he had previously used in a presentation.
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Offline digital cash?
The question of using digital money in the event of a network outage comes up again and again. Here is an overview of the options and their pros and cons.
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What is an NFT, behind the scenes?
“NFT” is currently on everyone’s lips again, and not only because of Pro Senectute. But what is actually behind the full-bodied promises of the NFT advocates? For more insights on NFTs and the entire blockchain ecosystem, click here. You can also read this text in German 🇩🇪. “NFT” stands for “Non-Fungible Token” and is being…
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Netfuture: The future is networked
Bevorzugen Sie Deutsch? Einige Artikel und mehr über mich gibt es auch in meiner Muttersprache. 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…
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Upgrade ejabberd to the latest TLS security [UPDATE#2, 2014-06-05]
ejabberd is a very fine XMPP server. However, it has very few options to configure its SSL and TLS security settings away from the very weak OpenSSL defaults. The TLS Interposer makes securing TLS used by ejabberd a breeze.
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chrony NTS certificate reload
The chrony NTS daemon has no way to automatically reload its NTS certificate. A quick hack fixes this.
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Modern ejabberd configuration
ejabberd is one of the most widely used XMPP servers. It is easy to get it running for text-based messaging with a few configuration changes. However, to obtain a smoothly running modern feature set is harder. The configuration documentation is detailed, but even for a seasoned systems administrator or XMPP guru, a lot of questions…