how to wake mac every 20 minutes
Hello
I have a simple goal and I think I found a 3rd party solution but it's overkill for my needs.
I need the mac to wake from sleep every 20 minutes or so and trigger OpenDNS updater.
I can't find anything in google and a Calendar automator script failed to wake the mac.
regards
iMac, OS X Mountain Lion, iMac 2006 10.6.x, Mac mini 10.8