# WHATPORT(2394)

## NAME

port 2394 — Microsoft OLAP (legacy) — The second of Microsoft's early OLAP registrations, and just as dormant as the first.

Protocol: TCP  
IANA: ms-olap2

## DESCRIPTION

IANA registers 2394 as ms-olap2, "MS OLAP 2", registered by Microsoft's Analysis Services team next to ms-olap1 on 2393. Microsoft's current Analysis Services firewall documentation names only TCP 2383 (default instance) and TCP 2382 (SQL Server Browser), so 2394 does not correspond to anything a supported SQL Server installs. Identify any listener here by process; the registry name will not tell you what it is.

## EXPOSURE

**Do not expose.** Either an unidentified service or a legacy database listener — keep it off public interfaces either way.

## CHECK

```sh
sudo lsof -nP -iTCP:2394 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 2394 (ms-olap2)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=2394) (iana.org)
- docs — [Microsoft Learn — Configure the Windows Firewall to Allow Analysis Services Access (documents 2382/2383)](https://learn.microsoft.com/en-us/analysis-services/instances/configure-the-windows-firewall-to-allow-analysis-services-access) (learn.microsoft.com)

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HTML: <https://whatport.net/2394/> · JSON: <https://whatport.net/2394.json> · full dataset: <https://whatport.net/ports.json>