Enabling Wake-on-LAN

The first thing you do when you configure Wake-on-LAN is to enable it in your motherboard BIOS (on my ASRock it's "wake on PCI device -> enabled").

However, this is not enough because when you leave Linux (or Windows), your network card may not be set to wake up from LAN. Thanks to tjansson, I'm now using the following root crontab to enable Wake-on-LAN everytime Linux starts (I prefer that to an init/rc6 script).

@reboot /usr/sbin/ethtool -s eth0 wol g

I invite you to read tjansson's blog entry for more information.

Wake on Lan in Python

I love Wake on Lan because it allows me to shutdown my little server at home, and still be able to remotely wake him up if necessary.

The well-known Depicus WoL pages provide Windows binaries (GUI and CLI) to send WoL packets, as well as an online form.

If you are on Linux or prefer sending it on your own (I mean, not using a closed binary), you can use a few lines of Python as explained by myf00 with Python3 code.