I am running Little Snitch in demo mode:
After a few hours, how can I tell whether Little Snitch is running or stopped?
From the official website:
Free Evaluation License
Little Snitch has a free, built-in demo mode that provides the same protection and functionality as the full version. The demo runs for three hours, and it can be restarted as often as you like. The Network Monitor expires after 30 days.
How can I restart it when it's stopped?