OpenSSL CLI-Cheat-Sheet [en]

The OpenSSL library is utilized by a wide range of other open-source projects, like web-servers, mail-servers, VPN-servers, etc. When dealing with such software and SSL, it often proves useful to be familiar with the openssl command-line tools. Of course, OpenSSL does have great man-pages, and a quick web-search reveals plenty of usage examples. However, OpenSSL …

Ubuntu Full-Disk-Encryption – A Field Report [en]

Since my old notebook computer recently gave up on me, I had to install a new one from scratch. I finally decided to give Ubuntu a go, after I had been using Debian (testing) for almost a decade. I must say that I’m really impressed with Ubuntu’s lean installation process, which handles diverse aspects like …

29C3 Talk: Certificate Authority Collapse [en]

Just watching axelarnbak‘s 29C3 talk on Certificate Authority Collapse, which covers structural flaws in SSL. I’ve reported on the mess with SSL before, and you may notice related complications (see CAcert) while browsing this page. After a good summary, the talk mainly focuses on structural problems and regulatory solution approaches. But apparently there are other …

Wireless Earphones: The next generation [en]

Almost a year ago, I reported about the Bluetooth earphones I got. I still don’t get why so few people are using similar devices. Let alone, why there are so few similar products on the market. The Bad However, the model I picked (Jabra Clipper) was not all sunshine. After using it some while, it …

Worries with WordPress: Image Resampling [en]

One of the main reasons I started this blog in the first place was to share photos. Mainly stuff related to travels, nature, snowboarding, architecture and street-art. You may have noticed that such stuff has been extremly scarce so far. Apart from my own lazyness, this is due to technical difficulties related to the way …

SSL Seriously? [Update] [en]

I just ordered a muilti-domain SSL-certificate for 3 of the websites that are run by my company. It’s a simple domain-validated certificate, so they sent me a validation e-mail to the webmaster address of the domain. Yes, you heard right! I’m saying the domain, cause they only bothered to validate one of the three Domains …

My New Wireless Earphones [en]

One of the things I use my new phone most for, is listening to music. Unfortunately the Nexus One came with a set of regular earbuds, whereas I prefer canalphones. So I started to look for an alternative… Wireless Audio Basics The Nexus One has a regular 3.5mm TRRS headphone socket, so it should be …

Nexus One/Android: First Impressions [en]

Ok, so it’s been a while now, since I’ve got my Nexus One. I have to admit, I did not toy around with it too much yet. Did not even install any custom software ‒ or do I have to say “apps” nowadays? I have to say it’s a still a pretty amazing phone! However, …