# WHATPORT(57797)

## NAME

port 57797 — Unassigned (dynamic range) — Unregistered and undocumented; a scan hit here identifies nothing on its own.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA has no entry for 57797 because RFC 6335 excludes the Dynamic/Private range from assignment. Nmap's nmap-services lists it "unknown" at 0.000228, one of the lowest frequencies still inside the default top-1000 TCP set. The SANS ISC port page has an empty service field. For an obscure port this is the whole truth: registered to nobody, rarely seen, never identified.

## EXPOSURE

**Expose with care.** Identify the binding process before making any exposure decision; the port number carries no information.

## CHECK

```sh
sudo lsof -nP -iTCP:57797 -sTCP:LISTEN
```

## SEE ALSO

- spec — [RFC 6335 — Dynamic Ports (49152-65535)](https://www.rfc-editor.org/rfc/rfc6335.html) (rfc-editor.org)
- iana — [IANA port registry — search 57797](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=57797) (iana.org)

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HTML: <https://whatport.net/57797/> · JSON: <https://whatport.net/57797.json> · full dataset: <https://whatport.net/ports.json>