Tech Blog

Thoughts, stories and ideas.

MySQL/MariaDB HA: Galera Cluster vs. DRBD replication

20. August 2016

Trademark notice DRBD® and LINBIT® are trademarks or registered trademarks of LINBIT in Austria, the United States, and other countries.…

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Multi-Factor Authentication

17. July 2016

In this day and age, hacker attacks are an all too common occurrence. This is why it is more important…

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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…

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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…

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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…

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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…

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