Tech Blog

Thoughts, stories and ideas.

Automated Debian Package Build with GitLab CI

20. March 2017

We’ve decided to use GitLab CI to build Debian packages automatically. GitLab CI allows users to execute tasks based on definable events, such as Git tags. We’ve created a generic…

Performance analysis with strace

4. March 2017

I recently had a customer on the line who was complaining about a script that was running too slowly. It was an import that generally takes several hours. The source…

Secret Management with HashiCorp’s Vault

10. February 2017

Security continues to be a hot topic in IT. We’ve seen the trend reflected, for example, in the development of a variety of security-related tools, such as Square’s Keywhiz or…

OpenSSH Security

10. February 2017

The configuration of SSL protocols and ciphers on web servers has been the done thing for some time now. It is often overlooked that other services can also be configured…

SUSECon 2016

17. January 2017

We visited Washington D.C. with the chameleon and saw a lot of exciting things at the annual SUSECon and above all, experienced the Open Source spirit. The infectious mood, the…

Form validation with Ember.js

10. January 2017

Forms on websites are so ubiquitous and so much taken for granted that they are rarely given much thought. Even so, every Internet user would probably find it easy to…

Django Girls Workshop Zurich 2017

8. January 2017

Last weekend I had the chance to coach at the Django Girls workshop in Zurich. More than 40 girls came into contact with the world of programming for the first…

EmberFest Berlin 2017

7. January 2017

Last week we travelled to the hipster capital Berlin to see the latest trends of the Ember.js world at the EmberFest. More than 100 Ember developers and fans were there…

SUSE Enterprise Storage 2 – CephCalamari hands on

2. November 2016

Ceph is on everyone’s lips and, at the latest since Red Hat has acquired Inktank, the software defined storage solution has arrived in the enterprise segment. Ceph promises nothing less…

Yubikey configuration

14. October 2016

Yubikeys (manufactured by Yubico) are inexpensive hardware tokens for multi-factor authentication. In addition to Yubikeys, Yubico also manufactures YubiHSM, which are Hardware Security Modules. HSM are used to store various…