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Fun Publications

The first honest Baloney Journal

We did it! The first honest Baloney Journal has been founded! It is available at kaese-journal.ch, the German equivalent of Baloney Journal. Submission is open now for the first issue, for anything already the author considers Baloney.

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Publications

Fighting Ransomware with Guided Undo

Master Thesis

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Publications

Datenschutz und IT in der Arztpraxis: ein Fass mit Boden

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Fun General

Toy store for grown-ups

Toys, games, handicraft and fun should not be limited to children, especially not in a society where creativity is important. I am therefore excited to announce that our small yet beautiful town of Stein am Rhein has a new toy store, focusing on grown-ups. The bigger sibling of the children’s toy store Wundernas, the new […]

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Publications

Meltdown und Spectre: Lesen ohne zu lesen

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Editorial Open Source

The dangers of free cloud-based storage

A few days ago, Google Docs locked out many users from their documents, claiming they violated their Terms of Service, despite being innocuous. Here is why this will continue to happen what you can do to not run into this problem yourself.

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How-to Open Source

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 […]

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General How-to

DNSSEC: Beware during algorithm transitions

DNSSEC is cool. It easily adds security to probably the most important enabling protocol in today’s Internet: No web pages could be found, email delivered, or instant message received, without the Domain Name System (DNS). DNSSEC also enables DANE, a step forward for certificates for most applications. Sometimes you want to change a few settings. […]

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Editorial Open Source

XMPP server hands-on comparison: ejabberd vs. Prosody

Having been involved in testing an open-source XMPP web client (JSXC) against ejabberd and Prosody, I have noticed the following differences that I would like to share, to make it easier for you to decide. Please note that I have done more with ejabberd, so there will naturally be more nitpicking there, but also more […]

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Publications

MoDeNA: Enhancing User Security for Devices in Wireless Personal and Local Area Networks