# WHATPORT(2399)

## NAME

port 2399 — FileMaker Server ODBC/JDBC — FileMaker Server's xDBC listener — SQL access to hosted FileMaker databases.

Protocol: TCP  
IANA: fmpro-fdal

## DESCRIPTION

IANA registers 2399 as fmpro-fdal, "FileMaker, Inc. - Data Access Layer". Claris documents it as the port that must be open for ODBC and JDBC clients to query hosted FileMaker files, and the JDBC driver's port is fixed at 2399 — it cannot be moved. Access still requires an account whose privilege set carries the fmxdcc extended privilege, and the listener only accepts connections when ODBC/JDBC sharing is enabled on the server. On a scan it identifies a FileMaker Server, usually alongside 443 and 5003.

## EXPOSURE

**Do not expose.** Direct SQL access to a live database with credentials on the wire; keep it inside the network or behind a VPN rather than opening 2399 to the internet.

## CHECK

```sh
nc -vz TARGET 2399
```

## SEE ALSO

- docs — [Claris — Ports used by FileMaker Server](https://help.claris.com/en/server-installation-configuration-guide/content/ports-used-by-server.html) (help.claris.com)
- iana — [IANA Service Name and Transport Protocol Port Number Registry — 2399 (fmpro-fdal)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=2399) (iana.org)

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