# WHATPORT(125)

## NAME

port 125 — Locus PC-Interface Net Map Server — Registered to the Locus PC-Interface net map server; a dead 1980s product.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists port 125 as `locus-map`, the Locus PC-Interface Net Map Server, from Locus Computing's PC-Interface product that let DOS PCs use Unix file and print services. The company and the product are long gone and no specification was published. The registration persists in `/etc/services`, so scanners print the name without evidence. Anything listening on 125 today is unrelated to Locus.

## EXPOSURE

**Expose with care.** The service name is a fossil; identify the actual listener before making any exposure decision.

## CHECK

```sh
nc -vz TARGET 125
```

## 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/125/> · JSON: <https://whatport.net/125.json> · full dataset: <https://whatport.net/ports.json>