# WHATPORT(2041)

## NAME

port 2041 — interbase (registration name only) — Named "interbase" in the registry, but the InterBase/Firebird database actually lives on 3050.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA lists the service name interbase on TCP and UDP 2041 with no description, assignee or reference. The database engine the name suggests does not use it: Borland InterBase and its open-source descendant Firebird use the registered gds-db service on port 3050, which is what their servers bind by default. So 2041 is a historical name with no protocol documented and no common software behind it — Nmap sees it open on about 0.02% of hosts.

## EXPOSURE

**Expose with care.** Do not assume a database. A listener here is unidentified; if you are actually looking for InterBase or Firebird, check 3050 instead.

## CHECK

```sh
sudo lsof -nP -iTCP:2041 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml) (iana.org)
- docs — [Firebird — the InterBase-derived open source database](https://firebirdsql.org/) (firebirdsql.org)

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HTML: <https://whatport.net/2041/> · JSON: <https://whatport.net/2041.json> · full dataset: <https://whatport.net/ports.json>