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• Hue and Rasp Pi

  Since his Trådfri Smarthome article over a year ago, sys admin columnist Charly has been receiving messages from readers with two questions: "Can you do that with the Philips' Hue system?" and "Can this also be done with a normal brightness sensor?" Yes and yes!

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• The sys admin's daily grind: cheat.sh

  Whenever you really need documentation, it's almost always incomplete or outdated – or both. Sys admin columnist Charly K¸hnast recommends a radically different approach: the universal community documentation cheat.sh, which no Linux command and hardly any programming language should do without.

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• Vim Primping

  Working with the infamous Vim is part of every sys admin's daily work. Charly spices up the veteran editor with personal settings for syntax highlighting and indentations.

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• Charly's Column: Corkscrew

  Sys admin columnist Charly never takes a vacation from the Internet. A beach bar with WiFi is quickly found, but it runs a forced proxy, which thinks that the SSH port (22) is in league with the devil and blocks the connection. Time to drill a tunnel.

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• Charly's Column – Mi Flora

  Columnist Charly Kühnast recently attached Mi Flora humidity sensors to his potted plants. At first, they only transmitted junk on Bluetooth, but armed with the right tools and a Rasp Pi, Charly now reaps a rich harvest of data.

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