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Remote power

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Remote power

Description

Power on (and off) computers remotely from a web page.

With this service it is no longer necessary to leave your computer switched on in case you could need it at night, over the weekend or when traveling.

In order to be able to power on your computer remotely it needs to have the Wake on Lan option activated. It is usually on by default, but it is wise to test it locally before trying to use this service for the first time from the outside.

Access

The service can be accessed at https://apps.citius.usc.es/wakeonlan/.

User manual

When loading the web page a list of the computers you are allowed to power on or off will appear and as their actual power status will be shown. You should see at least your own computer (max. one computer per jack) as well as any server with automatic power off configured and to which you have access granted.

Dependent on the current status of each computer you will be able to power them on or off:

  • Off indicator(grey): Computer is switched off, you can send the power on signal to it pressing the button. There is no way of knowing whether it powers on correctly until it has finished off booting, so the service checks the computer status in one minute intervals. If after a while the status indicator is still off(grey) then the computer probably has the wake on lan option deactivated in the BIOS or in the network interface.
  • On indicator (fixed blue): Computer is powered on, you can switch it off pressing the button. Only works in computers that have the CITIUS Ubuntu installed, others will show an error message. Servers with automatic power off configured can't be manually switched off and the button will be grayed out.
  • Working indicator (flashing blue): The computer is being switched on or off presently and nothing can be done. The indicator will remain like this for a minute and a half after switching on or off the computer.
Some computers can't be switched on or off and so they will appear with a grayed out indicator once powered on if they can not be powered off and vice versa. Even though the power off button can appear active for desktop computers it will only work right when the operating system installed is the CITIUS Ubuntu.

Press the Logout button to close the current session.

Changelog

Versión 1.2

  • Recoñece o login da páxina principal do centro http://citius.usc.es/, de forma que ó estar logeado alí non é necesario volver a logearse.
  • 1.2.3: Utiliza directamente o formulario de login do centro en caso de non estar logeado.

Versión 1.1

  • Se o equipo non se pode apagar nin encender, non aparece no listado.
  • Se o equipo non se pode apagar, non aparece o botón de apagar.
  • Se o equipo non se pode encender, non aparece o botón de encender.

Preguntas frecuentes

Tras pulsar no botón de encendido, aparece o indicador azul en movemento e despois volve ó indicador de apagado

Esto pode ser debido a varias causas:

  • O equipo está atascado nalgunha secuencia de arranque (BIOS, menú do Grub, etc.) e require intervención manual.
  • O equipo non está conectado á rede.
  • O equipo non está correctamente configurado para Wake on lan. Pode pasar a primeira vez que probes a ferramenta. Avisa á Unidade de Xestión de Infraestruturas TIC en citius.tic@usc.es para que lle boten un vistazo á configuración do teu equipo.

Tras pulsar no botón de encendido, aparece o indicador azul en movemento e despois volve ó indicador de apagado durante uns segundos, e logo aparece o indicador de encendido

O sistema non ten forma de comprobar se o equipo está encendendo de verdade, polo que tras enviar o sinal de encendido, agarda un minuto e medio antes de volver a mostrar o estado real. Se pasado ese minuto e medio o equipo aínda non encendeu, pero remata máis tarde, é posible que o indicador volva ó estado de apagado durante uns segundos e, unha vez encendido, apareza finalmente o estado correcto.

Tras pulsar no botón de apagado, aparece o indicador azul en movemento e despois volve ó indicador de encendido

Esto pode ser debido a que o sistema quedou atascado nalgunha secuencia de apagado e requira intervención manual.

O botón de encendido/apagado aparece sombreado e non podo pulsar nel

Algúns equipos non se poden apagar ou encender, e estando encendidos ou apagados terán o botón deshabilitado, dependendo das accións que estén permitidas.

Non aparece o meu equipo na lista de equipos que podo encender/apagar

Avisa á Unidade de Xestión de Infraestruturas TIC en citius.tic@usc.es. Os equipos asígnanse manualmente e é posible que haia algún erro.