Settings > RadioBOSS:

This tab holds the settings for RadioBOSS control (HTTP API) and the RadioBOSS database (MariaDB / MySQL).

Show commands for RadioBOSS: Activates the RadioBOSS tab (Shift+F12) and the top info area (previous / current / next track and the OnAir playlist).
RadioBOSS Host: URL of the RadioBOSS HTTP API (e.g. http://192.168.1.10:9000).
RadioBOSS User / RadioBOSS Password: Login credentials for the API (leave empty if not required).
Relay start link: URL of the relay stream (default for the Relaystart command).
Show trigger php: URL of the PHP script called on track change (setsendung command).
Livestream URL: URL for the live stream (for the 'Live' player button).

Database connection (required for the database song search and the Cue Point / Tag Editor):
SQL Host: Hostname or IP address of the database server (e.g. db.myserver.com).
SQL Port: Port number (default 3306).
SQL Database: Database name (e.g. radioboss).
SQL User: Database user name.
SQL Password: Database password.

The connection is established automatically on program start; if it is lost, RemotePLE reconnects automatically. Without a database connection the Tag Editor and the database search modes are not available; FTP functions are unaffected.
