# WHATPORT(1117)

## NAME

port 1117 — ARDUS Multicast Transfer — Registered to ARDUS multicast file transfer; not seen in general scanning.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA assigns 1117 to ardus-mtrns, "ARDUS Multicast Transfer", one of a small group of ARDUS registrations for a multicast bulk-transfer product. There is no public protocol document, and Nmap's data shows it open on a negligible share of hosts. An open 1117 almost certainly belongs to unrelated local software.

## EXPOSURE

**Expose with care.** Unknown vendor protocol — identify the process; multicast transfer tooling is designed for a controlled LAN, not the internet.

## CHECK

```sh
sudo lsof -nP -iTCP:1117 -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)

---

HTML: <https://whatport.net/1117/> · JSON: <https://whatport.net/1117.json> · full dataset: <https://whatport.net/ports.json>