📄️Connecting to MySQL Server from Applications in OpenPanel

OpenPanel runs each user service inside its own container and uses local networks to isolate them. This means that applications do not connect to the database via localhost or 127.0.0.1, but instead through container hostnames.

📄️How to troubleshoot: Error establishing a database connection

If your website/application is alerting you that there was an error establishing database connection you should take the following steps in order to troubleshoot the issue: