To do this remotely (which is outside your home network), you can for example set up a method in which you can control that “another device”. So how can we solve this? Port forwardingįrom the previous part, we see that in order to achieve the wake-on-lan feature, we need another device in the same network to send a “magic signal” to port 9 of your PC. If you go outside of your home network, you won’t be able to do what listed above. One downside is, this method can only be applied through a local network. 9 is the most popular port, but it can be 7 in some cases. The “255.255.255.255” is the broadcast address, which means that the message will be sent to all the devices in the same network, and the “:9” is the port number that listens to the wake-on-lan command. Then, you will need to know the MAC address of the network device which your PC has, simply run this command in your PC (if it is Linux, for other OSes there should be a similar option): Simply turn on the computer, press a special key (in my PC it is F12) to do to BIOS settings and you should be able to find that option. In order to enable Wake on LAN on your PC, first, you need to make sure that your BIOS supports this feature. However, this protocol only works for Ethernet-based network devices, so please take note! There are some ready-made programs (both native and web-based) and command-line interfaces such as wakeonlan cli, Wake on Lan Android. Send a target device in the same Local Area Network (LAN, which can be your home wifi or hotspot) with a special message. Wake on LAN is “a computer networking standard which allows a computer to be turned on or awaken by a network message”. Connect via VNC server (which is equivalent to Team Viewer, except it is open source and allows you to customize it).Local Port Forwarding (which allows a device at home to receive a signal from the Internet), and,.Wake on LAN (which allows turning on a device remotely).That sounds inefficient isn’t it? What if there is a way to leave your PC turned off when you don’t need, and have the ability to turn it on, remotely, when you require.įortunately, it is possible through a couple of techniques, which are: One easy way could be leaving your PC to always turned on and, for example, install Team Viewer on it. It would be convenient and also cool if you can have access to your own PC when you are not at home, whether through your phone or your laptop. I think it might have stopped working when I upgraded to Mountain Lion.Important: This blog requires the reader to have some knowledge in BIOS settings, network communication (i.e ports, TCP/UDP), and a little bit of scripting skill. Wake on Lan/sharing used to work wonderfully for me, but lately it has stopped working. (At least, that's how it used to work for me. I think it might have stopped working when I upgraded to Mountain Lion.) (I don't remember if you have to click on Connect As. The sleeping Mac should wake up, and the window should show the Mac's shared folders and a Share Screen button. The sharing Mac should be listed under "Shared" if you have checked the items under Shared in Finder->Preferences->Sidebar. Put that machine (the one sharing the service) to sleep. You can test this by going to System Preferences->Sharing and choosing one of the services, like Screen Sharing and/or File Sharing.Īlso in System Preferences->Energy Saver, ensure you have "Wake for network Access" (or equivalent-wording is slightly different on different machines) checked. I don't know anything about TeamViewer, but it might help narrow down the problem if you "took it out of the equation" and checked to see if Wake On Lan works for the built-in OS X sharing services.
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