# WHATPORT(34571)

## NAME

port 34571 — Unassigned — Unassigned by IANA — the first of the 34571-34573 block that scanners list with no name attached.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA has no registration for 34571, and Nmap carries it as unknown with an open frequency near 0.04%. Its two neighbours, 34572 and 34573, are equally unregistered, which is why the three tend to appear together in port lists rather than because any documented protocol claims them. On a Linux host the number is also inside the default ephemeral range, so transient sockets show up here routinely.

## EXPOSURE

**Expose with care.** Treat it as an unknown service: fingerprint the listener and confirm what owns it before exposing anything on it.

## CHECK

```sh
nmap -sV -Pn -p 34571 TARGET
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 34571](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=34571) (iana.org)
- source — [nmap/nmap — nmap-services (port frequency database)](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/34571/> · JSON: <https://whatport.net/34571.json> · full dataset: <https://whatport.net/ports.json>