Control Remoto En Un Aula 2.0

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Control Remoto En Un Aula 2.0 Uso educativo de las TIC Control remoto en un aula 2.0 Autor: Fernando Posada Prieto [email protected] Marzo 2013 canaltic.com Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com Índice 1. El control remoto de aula ................................................................................. 3 2. Instalación de TightVNC en un aula de notebooks ............................................. 4 2.1 Paso 1: Configuración de cada equipo del alumno/a .......................... 4 2.2 Paso 2. Instalación en cada equipo de alumno/a ................................ 6 2.3 Paso 3. Instalación en el equipo del profesor ................................... 10 2.4 Paso 4. Configuración de las conexiones ......................................... 13 3. Acceso a los equipos del alumnado ................................................................ 18 3.1 Visor TightVNC Viewer ...................................................................... 18 3.2 Acceso desde un archivo de conexión *.vnc ..................................... 20 3.3 TightVNC Viewer en versión Java ...................................................... 20 3.4 TightVNC Viewer en versión portable ............................................... 22 4. Transferencia de archivos ................................................................................. 23 Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 1. El control remoto de aula Desde el ordenador del profesor/a se puede actuar sobre un equipo del alumno/a sin necesidad de tener que acudir físicamente al pupitre del mismo. Esto se consigue mediante la utilización de un software de control remoto. En un aula de Escuela 2.0 es una buena forma de evitar las incidencias derivadas del desplazamiento del alumnado por la clase portando el portátil en sus manos. Resulta bastante habitual que el alumno/a acuda con el equipo a la mesa del profesor/a cuando requiere su asistencia en la resolución de un problema. Por otra parte si es el docente el que se desplaza entre los pupitres puede ser que su espalda se resienta en breve plazo de tiempo. En el mercado existen distintas aplicaciones comerciales para el control remoto de un aula de ordenadores. Entre ellas destacan: NetOp School: http://www.netop.com/ NetSupport School: http://www.netsupportschool.com/ES/index.asp ABTutor: http://www.abtutor.com/ También existe alguna alternativa gratuita GNU como: iTalC: http://italc.sourceforge.net/home.php Todas estas soluciones están pensadas para funcionar en una red de ordenadores conectados por cable. Disponen de múltiples prestaciones sumamente interesantes en el contexto educativo pero resultan un poco pesadas y no se comportan de forma fiable cuando se intentan utilizar en una red inalámbrica. Como alternativa gratuita y ligera para una red WIFI de portátiles o notebooks (Escuela 2.0) se propone el uso del programa TightVNC (http://tightvnc.com/). Evidentemente también funcionaría en una red local por cable. Esta solución no dispone de todas las prestaciones que las anteriormente citadas pero para una red WIFI resuelve con fiabilidad y agilidad dos interesantes opciones: el control remoto del ordenador del alumno/a para realizar asistencias desde el equipo del profesor/a y la transferencia bidireccional de archivos. Existen otros programas gratuitos para instalar un sistema cliente/servidor de VNC: UltraVNC: http://www.uvnc.com/ RealVNC: http://www.realvnc.com TigerVNC: http://sourceforge.net/projects/tigervnc/ Se ha elegido TightVNC por sus prestaciones y por resultar más fiable y ligero. Asimismo existen programas de control remoto que utilizan como intermediario un servidor en Internet. Por ejemplo: TeamViewer (http:// www.teamviewer.com/) o LogMeIn (https://logmein.com/). Estas soluciones necesitan disponer de acceso a Internet para que funcionen. Sin embargo TightVNC funciona en una red local de ordenadores sin requerir conexión al exterior. Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 2. Instalación de TightVNC en un aula de notebooks 2.1 Paso 1: Configuración de cada equipo del alumno/a Para que TightVNC funcione correctamente es necesario que cada equipo del alumno disponga de un nombre de equipo único en la red y se recomienda que todos los ordenadores (alumnado y profesorado) pertenezcan al mismo grupo de trabajo. Por este motivo es necesario realizar la siguiente tarea en cada ordenador (Windows 7): 1. Desde el escritorio selecciona Inicio > Panel de Control > Sistema. 2. En el apartado Configuración de nombre, dominio y grupo de trabajo del equipo haz clic en el enlace Cambiar configuración. 3. Se muestra el cuadro de diálogo Propiedades del sistema. En la pestaña Nombre de equipo pulsa en el botón Cambiar… 4. Introduce el nombre del equipo del alumno/a en la casilla Nombre de equipo. Conviene utilizar un nombre significativo que aluda al alumno/a. Otra opción es utilizar un identificativo que contenga un número y luego situar una pegatina que muestra ese número en un lugar visible de la tapa del ordenador (p.e. nb01) Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 5. Conviene definir también el Grupo de trabajo para que sea el mismo para todos los ordenadores del aula. Teclea el nombre de un grupo, p.e., aula6b o cualquier otro significativo. 6. Pulsa en el botón Aceptar. Al cabo de unos segundos, si todo ha ido bien, se mostrará el mensaje Se unió correctamente al grupo de trabajo … 7. A continuación se comunica que es necesario reiniciar el equipo para aplicar los cambios. Clic en el botón Aceptar para cerrar esta ventana. 8. Si se solicita reiniciar el equipo, pulsa en el botón Reiniciar ahora. En caso contrario reinícialo de forma manual. Nota: Conviene configurar el ordenador del profesor/a siguiendo los pasos anteriores para incluirlo en el mismo Grupo de trabajo que los ordenadores de los alumnos/as. Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 2.2 Paso 2. Instalación de TightVNC Server en cada equipo de alumno/a 1. Visita la web oficial de TightVNC: http://tightvnc.com/ . Localiza la página de descargas para obtener el archivo de instalación: Installer for Windows (32‐bit/ 64‐bit) 2. Copia el archivo de instalación tightvnc‐X.X.X‐setup‐XXbit.msi al ordenador del alumno/a (por ejemplo, usando un pendrive) y ejecútalo para iniciar la instalación. 3. Welcome to the TightVNC Setup Wizard. Bienvenido al asistente de instalación de TightVNC. Clic en el botón Next (Siguiente). 4. End‐User License Agreement. Aceptación de la Licencia de Usuario Final. Marca el checkbox I accept … Yo acepto … y haz clic en el botón Next (Siguiente). Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 5. Choose Setup Type. Elige tipo de instalación. En este caso vamos a instalar sólo el Server (Servidor) y no vamos a instalar el Viewer (Visor). De esta forma el alumno/a no dispondrá en su ordenador del visor con que tratar de acceder a otros ordenadores. Para ello haz clic en el botón Custom (Personalizada) que permite definir una instalación personalizada. 6. Custom Setup. Instalación personalizada. Despliega el combo TightVNC Viewer y selecciona la opción X Entire feature will be unavailable (X Esta característica no estará disponible) para no instalar el visor del programa. Clic en el botón Next. 7. Select Additional Tasks. Seleccionar tareas adicionales. En este caso deja marcadas las 3 opciones que se ofrecen por defecto y pulsa en el botón Next (Siguiente): Register TightVNC Server as a system service. Registrar el servidor de TightVNC como un servicio de sistema. De esta forma el servidor se iniciará de forma automática cuando arranque el ordenador. Configure system to allow services simulate Ctrl‐Alt‐Del. Configurar sistema para permitir servicios que simulen Ctr‐Alt‐Del. Windows Firewall configuration: Add exception for TightVNC to Windows Firewall. Configuración del Firewall de Windows: Añadir una excepción para TightVNC al firewall de Windows. Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 8. Ready to install TightVNC. Listo para instalar TightVNC. Clic en el botón Install (Instalar). 9. TightVNC Server: Set Passwords. Servidor TightVNC: configurar contraseñas. En este paso conviene definir las dos contraseñas que se indican: Password for Remote Access. Contraseña para Acceso Remoto. Es la contraseña que el profesor/a tendrá que introducir desde su equipo para acceder de forma remota al equipo del alumno. Es recomendable definirla para evitar que desde un equipo de alumno se intente acceder al equipo de otro alumno. Marca la opción Require password‐based authentication (Requiere autentificación basada en contraseña) y teclea la contraseña (máximo 8 caracteres). Administrative Password. Contraseña de Administración. Es la contraseña que el profesor/a tendrá que introducir en el equipo del alumno para acceder al panel de administración del server del programa instalado en ese ordenador. Marca la opción Protect control interface with an administrative password (Proteger el interfaz de control con una contraseña administrativa) y teclea la contraseña (máximo 8 caracteres). Nota: Se aconseja utilizar la misma contraseña en todos los equipos del alumnado. Control remoto en una aula 2.0 2013. Fernando Posada Prieto. canaltic.com 10. Clic en el botón Ok para guardar las contraseñas definidas. A continuación se muestra el panel Completed the TightVNC Setup Wizard (Asistente de instalación de TightVNC completado). Clic en el botón
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