# WHATPORT(5002)

## NAME

port 5002 — rfe — Registered to "radio free ethernet", an old broadcast audio experiment — effectively a free port today.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 5002 as rfe, "radio free ethernet", one of the early-1990s registrations that never grew a public specification or a surviving implementation. Nothing widely deployed claims it now, so a listener here is almost always an application that picked a round number near 5000. Treat the registered name as trivia and identify the service from its banner.

## EXPOSURE

**Expose with care.** The port number carries no security meaning. Judge exposure by whatever process actually owns the socket.

## CHECK

```sh
sudo lsof -nP -iTCP:5002 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA port registry — 5002 (rfe)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5002) (iana.org)

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HTML: <https://whatport.net/5002/> · JSON: <https://whatport.net/5002.json> · full dataset: <https://whatport.net/ports.json>