Feb 24

Raspberry Pi: Change Java JVM – OpenJDK / Oracle

Source code

When I first began using the Raspberry Pi to run Java applications, Oracle had yet to release a Java virtual machine that utilised ARM hard floats (hardware accelerated floating-point math processing). This meant that the Oracle JVM had to do all of this arithmetic in software causing excessive CPU load and poor performance. It was […]

Feb 14

Raspberry Pi: SSH using public and private keys

Sometimes it’s necessary to leave a publicly accessible SSH connection available on your Raspberry Pi. While a strong password is essential, a much more secure method for authentication is to use a public and private key system. This guide will take you through all of the steps to creating the keys, configuring the Raspberry Pi, […]

Sep 20

Quick tip: Linux Xkill

Need a fast and easy way to kill an unresponsive application in Linux? Press Alt + F2. Type xkill in the Run Application dialog. Click the application with the X (or skull and crossbone) cursor. I discovered this after having a fullscreen Java app freeze on me a few times in Ubuntu. Further reading Xkill […]