Tag: linux

Solutions to caffeine starting at ranom

I have noticed that my caffeine-ng in the tray is seemingly enabling/activating at random, even though I had virtually nothing running and I had no apps listed explicitly in the Preferences dialog: After running caffeine from the command line, I could see the following: INFO:caf…

Using electronic ID on Arch in Slovakia

Some months ago I wrote an article about the smartcard and shown a possible way to initialize communication with it on Arch Linux and the notebook equipped with smartcard reader, in my case a trusty T470. The basis for making the smartcard reader work is to install the required p…

Fighting Docker iptables on Arch

A strange issue I could not find a meaningful explanation anywhere regarding running docker-compose script and iptables firewall on Arch Linux. Steps to reproduce assume bare iptables, Docker and docker-compose available. Step 1. Start Docker Start the docker.service via systemct…

Transfer files between servers using rrsync

You might be thinking there is a typo in the rrsync but it is actually a legitimate command name. The command name comes from restricted rsync and is usually distributed alongside rsync via the package manager. Lets find out where it is located on Arch Linux: $ pacman -Fy &&a…

Upgrading wiringpi on Raspberry Pi 4

I have had a problem with the gpio command on Raspberry Pi 4. Checking it's version with gpio -v produced the following output: gpio version: 2.50 Copyright (c) 2012-2018 Gordon Henderson This is free software with ABSOLUTELY NO WARRANTY. For details type: gpio -warranty Raspber…