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Remote wake-up for sleeping computers
The School of Informatics has a remote computer wake-up service. It can be used to wake a machine which is sleeping. It should wake most personal computers, whether they run DICE Linux or are self-managed. To use it, visit the following web page:
When you visit the page you will see a list of computers which you can wake, and a "Wake the computer" button. To wake a computer, choose it from the list then click "Wake the computer".
A computer will only appear on the page if the computer inventory knows that you should have permission to wake it. If your computer is missing ask computing support for permission to wake your machine(s) with wake.inf.
The same wake-up process can also be run from the command line. Login to one of the ssh gateway servers then type the command
where name is the name of a computer to be woken.
If your personal or self-managed machine cannot be woken this way, even when it is listed correctly in wake.inf.ed.ac.uk, try updating its BIOS and software, and enabling "Remote wake-up" or "Wake on LAN" settings.
Users of firefox can streamline the process of waking a machine - for more details see Wake a computer more quickly with a firefox bookmark.
The University also has a central Wake On LAN service, but network and data issues mean that we can't use it with Informatics computers. This is why we have our own service. If you want to know more about the University's service anyway, it is provided by Information Services and there is a helpful PDF document Activating Wake on LAN/Remote Access for Your Office Computer on its Off-site working pages.
See also Automatic sleep on DICE machines. For background reading see Connecting from outside the University - an overview.