How to connect to eduroam at the University of Barcelona

GNU/Linux

If you want to connect to eduroam at the University of Barcelona you will need the following information:

  • Security: WPA Enterprise
  • Authentication: TTLS (Tunneled TLS)
  • Anonymous Identity: anonymous@ub.edu
  • CA Certificate: /usr/share/ca-certificates/mozilla/AddTrust_External_Root.crt
  • Internal authentication: PAP
  • User name: jherg006.alumnes
  • Password: **

If you …

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condformat: Conditional formatting for your DataFrames

condformat v0.2.0 has made it into CRAN!

Downloads Twitter URL

condformat helps visualizing DataFrames. With a ggplot2-like syntax we can format columns of our DataFrame and view it directly in the RStudio Viewer (screenshot). See how we combine several formatting rules in this simple example:

Sepal.Length Sepal.Width Petal …
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Audio error in Space Pirates and Zombies

I recently bought the Humble Indie Bundle 6, which among very nice games, it has "Space Pirates and Zombies". When playing it on Ubuntu precise 12.04, I had this sound related error:

    AL lib: oss.c:168: Could not open /dev/dsp: No such file or directory

In order …

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Skype webcam problem (/usr/lib/libv4l/v4l2convert.so solved)

If you have problems with the webcam in skype with Linux, you may have read that you need to run skype with:

    LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so skype

However, you may get the message:

    ERROR: ld.so: object '/usr/lib/libv4l/v4l2convert.so' from LD_PRELOAD cannot be preloaded: ignored …
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Wine and MimeType associations

I recently installed a Wine application which associated itself to the .dat extension. I tried uninstalling the application to get rid of the association, but the uninstaller did not remove it.

The next thing I tried was: 1. Open Nautilus 2. Right click on a .dat file, Properties 3. Click …

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