# WHATPORT(1075)

## NAME

port 1075 — RDRMSHC — An IANA registration whose name, RDRMSHC, has never been publicly expanded.

Protocol: TCP  
IANA registry

## DESCRIPTION

1075/tcp and 1075/udp are registered to Ericko Shimada under the service name rdrmshc, with the registry giving "RDRMSHC" as the description and nothing more. There is no published specification, vendor page, or implementation to match against. In practice the port shows up mostly as a client-side ephemeral socket on older Windows hosts, not as a server.

## EXPOSURE

**Expose with care.** Nothing is documented about this protocol's security properties, so a listener here needs to be identified before it is exposed anywhere.

## CHECK

```sh
nmap -sV -Pn -p 1075 TARGET
```

## SEE ALSO

- iana — [IANA port registry — 1075 (rdrmshc)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=1075) (iana.org)

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HTML: <https://whatport.net/1075/> · JSON: <https://whatport.net/1075.json> · full dataset: <https://whatport.net/ports.json>