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• Charly's Column

  Some weather forecasts give you the temperature and a windchill adjustment, and a similar forecast for bandwidth would be helpful. If you feel the bandwidth is too low – and it always is – you need some kind of measuring instrument to reveal the truth.

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• Charly's Column: Animated GIFs

  Beyond flashing web emoticons, animated gif images can present trends that catch your eye in system monitoring.

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• Charly’s Column: Raspberry Pi

  It’s probably not a coincidence that a number of people want to write about the muchlauded Raspberry Pi single-board computer, and our regular columnist Charly isn’t going to blow raspberries.

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• Charly's Column – Reverse SSH Tunnel

  This month, Charly Kühnast draws attention to a widely unknown weather phenomenon: The instability of rarely used tunnels leading to a Raspberry Pi. Read on for greater insights.

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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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