Network ports ​

CoordinatorDB provides a native TCP listener and an optional HTTP listener. Both authenticate SQL access against the configured users file.

Configuration ​

Setting	Meaning
listen_host	Listener host, default 127.0.0.1.
tcp_port	Native TCP port, default 7400.
http_port	Enables HTTP when configured; the sample uses 7401.

Port 0 asks the operating system to choose an available port. Startup output reports the resulting address.

--addr HOST:PORT overrides the native host and port together. --http-addr HOST:PORT independently overrides HTTP. Both listeners bind before the server announces that it is ready.

Protocols ​

Use the supplied CoordinatorDB client for native TCP. No PostgreSQL, MySQL, interserver or metrics listener is provided. The HTTP listener serves SQL and the browser Playground.

There is no built-in TLS listener. See authentication, HTTP and configuration files for their public access rules.