Tech Blog

Thoughts, stories and ideas.

Finja – Your friendly finding ninja

5. June 2016

Imagine you get a login for Unix-Box running on some esoteric hardware. On that box you find a 10 mloc C++/C/Java project, with many custom domain specific languages and file…

UCS Ansible modules

24. March 2016

A Univention Corporate Server (UCS) is not particularly suited for configuration by Ansible, since many tasks have to be done either via the Web GUI or via special Bash commands.…

systemd: start and stop dependencies

18. February 2016

The problem A web application which requires a Samba-Share (cifs) via openvpn (IPv6) runs on a Debian server (jessie, systemd 215). With the naive configuration, manual starting and stopping works…

GnuPG and SmartCards

18. January 2016

To ensure that GnuPG (Manpage) or PKCS#11 keys can no longer be stolen by a virus or similar, they can instead be stored on an external hardware security module (HSM)…