1. I'm running PhpStorm. Button "Start Listening for PHP Debug Connections" is enabled. But I'm not running any PHP code yet. Ubuntu ufw rules allow IN connections from 127.0.0.1 only
2. After looking at Event Log of IDE I see the following message: "Cannot accept external Xdebug connection: Cannot evaluate expression 'isset($_SERVER['PHP_IDE_CONFIG'])'" It is shown 6 times, at 16:39, 16:39, 17:09, 17:09, 17:39, 17:39
What does it mean? Is somebody sending connection requests to the port that IDE listens from Internet?
Or it is some internal diagnostic message that tells that nobody is sending connection requests?