Implantación de un ERP

“Cambiar de software es como limpiar debajo de las alfombras que nunca se limpian, sale de todo”
Oscar Gaspar

Crayon Physics

Do you remember the old game TIM (The Incredible Machine)?? Here you can see the new version!! Just amazing… And one more here! This software is called ASSIST: A Shrewd Sketch Interpretation and Simulation Tool and it has been developed in the MIT.

This one is called Phun, and it has been developed for Umeås university.

Openbravo Alerts

or an analysis of Openbravo echoes through GoogleAlerts

You can see and early draft here.

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.