Quickly Enable Root Login in Ubuntu 12.10

To get started, press Ctrl – Alt – T on your keyboard to open the terminal. When it opens, run the commands below to create a root password.

sudo passwd root

 

It will ask for your user password and then por de root password twice. With those steps you changed the root password for one you know

Next, run the commands below to enable root login in Ubuntu 12.10

sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf'

 

 

Restart your computer and select Login on the Login Screen. Then type the root username and password.

 

Ejecutar archivo "run" en Ubuntu 12.10

Para ejecutar un archivo "run" en Ubuntu 12.10 (por lo general usado por drivers) se debe seguir estos pasos:

1. Mover el archivo a nuestra carpeta personal (/home/nombre_usuario)
2. Hacer clic derecho, propiedades e ir a la sección "Permisos"
3. En ella seleccionar la casilla "Permitir ejecutar el archivo como un programa"
4. Cerrar la ventana de propiedades
5. Hacer doble clic sobre el archivo (esto abrirá un cuadro de dialogo) y seleccionar "Ejecutar"

NOTA: Tener paciencia dado que puede demorar bastante en abrir (esto es porque descomprime ciertas cosas para su ejecución)

Listo!

How To Install Additional Drivers In Ubuntu 12.10

As soon as you install a fresh Ubuntu 12.10, you will miss one thing: Additional Drivers. Earlier you could simply search for it in Unity dash but unfortunately Ubuntu 12.10 has moved the Additional Drivers to Software Sources and this is why you cannot find it in Unity dash. So if you are looking to install additional drivers, here is what you need to do:

Go in Ubuntu Unity Dash and search for Software Sources:

In the Software Center, go to the Additional Drivers tab:

Here you will find all the additional drivers available for your computer in Ubuntu 12.10.

Generate a new SID on Windows Server 2008 and Windows 7 (sysprep)

With the NewSID tool no longer supported by Microsoft for more recent versions of Windows, you may find yourself in a situation where you need to generate a new SID on a Windows Server 2008 or Windows 7 computer, and wonder which tool you need to use. I myself have run across an issue in the past in our development environment where duplicate SIDs caused a problem. Care needs to be taken when cloning Windows virtual machines, particularly if they will later be used as domain controllers.

In order to avoid any issues like this, the new preferred method to set a new SID on a Windows machine is to use Sysprep. Before running Sysprep, you may wish to verify the current SID on the sytem that you wish to modify. This can easily be done by running the psgetsid utility, which is part of the excellent Pstools developed by Mark Russinovich. The output of the psgetsid command can be seen below, showing the current machine SID:

Output of psgetsid before running Sysprep on Windows Server 2008 R2

 Next you can sysprep by running the following command:

C:\Windows\System32\Sysprep\sysprep.exe

Running Sysprep

 

On the Sysprep, screen make sure that you tick the 'Generalize' tick box as shown below:

 

Choose settings for the System Preparation Tool

 The Sysprep process will take a few minutes to run, and will automatically reboot the system if you chose to do so. On reboot, the following screen will be displayed. Click 'Next' to continue:

 

Click next to continue the Sysprep process

 After the sysprep process is complete, you can run psgetsid again to verify that a new SID has been generated for this computer:

Output of psgetsid after running Sysprep on Windows Server 2008 R2

Background-Image “fullscreen” ajustable a Ventana con CSS3

Método para crear un efecto fullscreen de una imágen usada como fondo sin necesidad de utilizar javascript. Para ello solo vamos a utilizar CSS y su propiedad background-size: cover.

La propiedad "background-size: cover" nos permite escalar el tamaño de las imágenes de fondo (background), en lugar de el comportamiento predeterminado del mosaico de la imagenes.

* para su visualización correcta requiere o bien un navegador basado en Gecko, WebKit (Safari y Google Chrome, por ejemplo) y Opera.

html {
    background: url(bg.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

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