Freedom Glory Project

Wow!

First query in WolframAlpha:
literacy vs. gdp

This is the result:

Amazing…

Wolfram Alpha

As announced on their blog, today is the launch of WolframAlpha. From the same company behind Mathematica.
If you want to know just a little bit more about this ’search’ machine, take a look at this screencast.

Càrrega contra els estudiants

No hi ha dret

Què ha canviat?

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LHC

para los que el LHC (Large Hadron Collider) os suene a chino, aquí os dejo un video que lo explica perfecto.

P.S.: Los del LHC hasta las cejas de THC… (¡juas! ¡que chiste malo!)

Openbravo Manifesto

El día 16 de Abril se producen dos noticias importantes dentro de OB, el lanzamiento de un nuevo programa de partners global y el anunciado manifiesto de OB.

Me ha encantado ver como dos de los blogs que sigo habitualmente se hacían eco de la noticia, aquí están sus dos opiniones.

Secure VoIP in ten steps, Gizmo + Zfone

I’m worry about our privacy as you know from previous posts. If you are concerned about the security of your VoIP communications try this. Furthermore, if you are a ubuntu user you have it easier. Just follow this simple steps:

1.- Install Gizmo:
sudo apt-get install gizmo-project

2.- Download Zfone (you must be a registered user). Take a look to the License Agreement!

3.- Install dependencies for Zfone:
sudo apt-get install g++ automake autoconf
sudo apt-get install iptables-dev
sudo apt-get install libglib2.0-dev libgtk2.0-dev

4.- Extract zfone-linux.tar:
tar xvf zfone-linux.tar

5.- Run the installation script
sudo ./install.sh

6.- Some kernel modules have to be loaded, if they are not loaded you’ll get a message like this:
zfoned: start enveronment checking…
zfoned: my pid=25331.
zfoned: try to open zfoned pid-file..
zfoned: /tmp/zfone.pid already exists. check zfoned with pid=17274.
zfoned: zfoned_check_env: start checking for pid=17274.
zfoned: zfoned_check_env: try to open status file (/proc/17274/status) for our process.
zfoned: zfoned_check_env: can’t open /proc/17274/status – process doesn’t exist.
zfoned: PROCESS not running – rewrite pid file
zfoned: storing zfoned pid=25331 at /tmp/zfone.pid.
zfoned: pid-file created zfoned can be started.
[ERROR]:zfoned network create: Error while init ipq lib. Is ip_queue module loaded?
[ERROR]:ZFONED create: can’t initialize network. (code=1)

Load them:
sudo modprobe iptable_filter
sudo modprobe ip_queue

7.- Start the daemon:
sudo /usr/local/bin/zfoned start
Or add it to start automatically:
sudo update-rc.d zfone defaults

8.- Run Zfone:
zfone
or from the panel:
Menu–>Internet–>Zfone

9.- Run Gizmo:
gizmo
or from the panel:
Menu–>Internet–>Gizmo-project

10.- Call me!!
Now you can make an unencrypted call to the “Echo test” (as Zfone will advice you) or you can call me through a secure call.

For more information:
Gizmo-project
Zfone
Ubuntu Help
README file in zfone-linux.tar

The ZRTP protocol has been submitted to the IETF, and you can check the last submitted available as HTML format here.

Update: To avoid loading every time each kernel module, run zfone and run gizmo, I writed such a simple shell script:

#!/bin/sh
sudo modprobe iptable_filter;
sudo modprobe ip_queue;
sudo zfoned;
zfone&
gizmo&

Add it as a launcher to the panel and just with one click you will have Gizmo and Zfone up and running.

New FireGPG add-on for Firefox

Probably all of you know about GPG and probably you’re already messing up with FireGPG, aren’t you?

1.- Install GPG
2.- Generate a key
gpg –gen-key
3.- Export your key to a text file
gpg –armor –output pubkey.txt –export ‘your_name’
4.- Install FireGPG
5.- Enjoy it!

And remember to share your public key. Here is mine.