Sending Wake-on-LAN packets from a Wi-Fi device or "why you should disable Windows 10 quick boot"

Recently one of my co-workers signed up for doing home office a few days every week. Being the exemplary user he should be (working in IT and all) he tried waking up his office machine using his notebook a few days before he was going to do home office. And against all expectations ... nothing happened.

Java usage tracking or "How to figure out what Java is used for in your environment"

UPDATE 2018-10-17: The release notes of Java 8u191/192 indicate that the location of the usagetracker.properties file has been changed. The guide below has been updated accordingly.

Oracle announced the end of Java 8 and that they will no longer provide free updates for Java 8 for enterprises after January 2019 here and here. And while Mozilla, Google and even Microsoft already removed Java support from their respective flagship browsers Oracle also announced that they will drop the browser plugin completely in upcoming releases.