Wake on LAN
From GroovixWiki
To use Wake on LAN (WoL), type the following command in terminal wakeonlan [MACaddress] Where [MACaddress] is the physical address of the machine you want to power on. To get the MAC address of the machine you want to power on, run the following terminal command ifconfig /all and look for the result labeled "Physical Address" (00:00:00:00:00:00). If the wakeonlan application is not already installed on that particular machine, typing apt-get install wakeonlan and try again.
Note: WoL magic packets cannot be routed past a layer-2 link, WoL will only work if the computer sending and the computer receiving are on the same IP subnet.
