# WHATPORT(5825)

## NAME

port 5825 — Unassigned — Unregistered with IANA and not the default for any widely used software.

Protocol: TCP  
IANA registry

## DESCRIPTION

There is no IANA assignment for 5825 and no common product that binds to it out of the box. Ports in this stretch of the registered range are sparsely allocated, so gaps like this get picked up ad hoc by internal tools, test harnesses, and vendor agents. The only honest identification method is to look at the process holding the socket or to see what the service says when you connect.

## EXPOSURE

**Expose with care.** No known protocol means no known authentication story. Do not open it at a firewall until you know what answers.

## CHECK

```sh
sudo lsof -nP -iTCP:5825 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA port registry — 5825 (unassigned)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5825) (iana.org)

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HTML: <https://whatport.net/5825/> · JSON: <https://whatport.net/5825.json> · full dataset: <https://whatport.net/ports.json>