Linux command tip

To take a snapshot of resource usage and processes in the system use the ps command with faux option. This will help you to keep track of server performance at various times.

Linux command tip

In Mac the mouse wheel scroll works in opposite direction compared to Windows. To change that go to System Preferences -> Mouse -> Uncheck the Scroll direction: Natural checkbox.

Raspberry Pi

If you are using HDMI to VGA for using your monitor for display then check if the hdmi_safe flag is on in the /boot/config.txt file. If this is disabled then uncomment the line and reboot Raspberry Pi.