A Zabbix active agent2 template for monitoring containers and container logs

The problem Zabbix (up to v7.2) doesn't seem to be able to monitor the Docker engine and containers in active mode, nor can it collected container logs, which is surprising, since it collects a wide range of container-, image- and runtime engine metrics in passive mode. The solution is a custom agent2 (I'll refer to … Continue reading A Zabbix active agent2 template for monitoring containers and container logs →

Comparing the efficiency of DC voltage boost circuits

Overview & disclaimers This post compares the power efficiency of some voltage boosting circuits. The circuits discussed here are: Buck converter Parallel buck converter Serial buck converter Pulsed transformer Joule thief Honorary mentions What we're doing here is neither complete nor scientific and aspires to more than it delivers. Comparison base line The generic version … Continue reading Comparing the efficiency of DC voltage boost circuits →

Canon EOS M10 / M100 / M200 as web cams under Linux

Not an actual picture of the EOS M10/M100/M200 [Update 2026.01.03] additionally discusses the M200. Since telework became a reality for me, I have constantly tried to upgrade my audio and visual setup; not for the satisfaction of my own vanity but out of mercy for the people who have to stare at me or listen … Continue reading Canon EOS M10 / M100 / M200 as web cams under Linux →