Common operations using Estonian eID (Linux)

Assumptions: Using Ubuntu with OpenSC Installation Tip: Make sure to have installed OpenSC from source, rather than using the Ubuntu repositories (in other words, follow the instructions here [1] rather than using apt-get install opensc). This is necessary to avoid the "failed: Invalid arguments Decrypt failed: Invalid arguments " error as outlined in this OpenSC … Continue reading Common operations using Estonian eID (Linux)

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Android Linux / Raspberry Pi Bluetooth communication

This post explores my attempt to get bidirectional bluetooth communication going between an android device and a linux computer (in this case a Raspberry Pi running Raspbian). This post is part of the documentation of knowledge acquired while building an "AquaPi" - a raspberry pi that will act as a control center for an aquarium. … Continue reading Android Linux / Raspberry Pi Bluetooth communication

Raspberry Pi : Home Control Center Part 1

In this series i'll document how I put together a lot of people's hard work into a home control center that is based off the raspberry pi, both for my future reference and for anyone out there who needs to build something similar. By the end of it, we should be able to have the … Continue reading Raspberry Pi : Home Control Center Part 1

Connecting Ubuntu / Mint to exchange mail and calendar

Assumptions and pre-requisites. This article assumes the Linux user has the following installed: An Ubuntu derived distribution such as Ubuntu itself, Linux Mint, and so on The email client used is evolution, installed via the following packages and their dependencies: evolution evolution-common evolution-data-server-common evolution-mapi evolution-ews evolution-data-server-goa evolution-plugins gnome-online-accounts gnome-control-center Setup Details Open the system menu … Continue reading Connecting Ubuntu / Mint to exchange mail and calendar

Lessons Learned : Linux System Tray Icons in python

While programming in python, for an Ubuntu/Linux Mint target, you may want to include a system tray icon for batter interaction with users. In Ubuntu, these are called "application indicators". A basic appindicator icon is quite simple to do in python via PyGTK. There's a very good example here: http://developer.ubuntu.com/resources/technologies/application-indicators/ Scroll down to the PyGTK … Continue reading Lessons Learned : Linux System Tray Icons in python

Python system tray notifications in Linux

As a follow up to my previous post, here's how to accomplish system tray notifications in ubuntu linux and family. I must say, compared to windows, this is child's play... under ten lines of code! #!/usr/bin/python import sys import pynotify if __name__ == '__main__': if not pynotify.init ("summary-body"): sys.exit (1) # try the summary-body case … Continue reading Python system tray notifications in Linux

Using a Raspberry Pi to power NOC/SOC monitors

When kitting out a NOC (network operations center) or SOC (security operations center), a common request is to have big screens showing some kind of dashboard. This may seem over the top in certain cases, but it does force the NOC/SOC team to pay more attention to a deployment's operational status, since the dashboards are … Continue reading Using a Raspberry Pi to power NOC/SOC monitors