# WHATPORT(1151)

## NAME

port 1151 — Unizensus Login Server — A 2005 vendor registration for a login server; effectively absent from real scans.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA registers 1151 as unizensus, "Unizensus Login Server", assigned in November 2005. No protocol specification is published and Nmap's frequency data shows it open on a tiny share of hosts. Treat an open 1151 as an unidentified application rather than as this product.

## EXPOSURE

**Expose with care.** The registration is an authentication endpoint with unknown transport security — confirm what is listening and whether credentials cross the wire in the clear.

## CHECK

```sh
sudo lsof -nP -iTCP:1151 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml) (iana.org)

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HTML: <https://whatport.net/1151/> · JSON: <https://whatport.net/1151.json> · full dataset: <https://whatport.net/ports.json>