1. Log into the Plesk Control Panel.
2. Click on Tools & Settings, located in the menu on the left.
3. Find the Server Management menu and click on Services Management.
4. You are now in the services management menu and can start/stop/restart as needed.
* If an option is greyed out, then the unavailable option is the current status of the service. If all options are greyed out, the service is not configured or installed on your server.