# WHATPORT(4446)

## NAME

port 4446 — N1-FWP (IANA registration) — An old Sun N1 registration with no live protocol behind it; treat a listener here as unidentified.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 4446 as N1-FWP, a name from Sun Microsystems' N1 provisioning product line, with no reference document or current implementation. Nothing in common use binds 4446 by default and scan frequency is negligible. If it is open, the answer comes from fingerprinting the service, not from the registry.

## EXPOSURE

**Expose with care.** No standard service to judge — identify what answers and apply that service's rules.

## CHECK

```sh
nc -vz -w 3 TARGET 4446
```

## SEE ALSO

- iana — [IANA port registry — 4446 (n1-fwp)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=4446) (iana.org)

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HTML: <https://whatport.net/4446/> · JSON: <https://whatport.net/4446.json> · full dataset: <https://whatport.net/ports.json>