# WHATPORT(1175)

## NAME

port 1175 — Dossier Server — A 2004 vendor registration for a "Dossier Server"; no public protocol and almost never observed.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA registers 1175 as dossier, "Dossier Server", assigned in November 2004. No specification is published with the registration and Nmap's frequency data places it among the least-seen ports in this block. An open 1175 should be attributed to whatever process is actually bound, not to this name.

## EXPOSURE

**Expose with care.** Unidentified vendor service — enumerate the process locally and keep it off untrusted networks until you know what it is.

## CHECK

```sh
sudo lsof -nP -iTCP:1175 -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/1175/> · JSON: <https://whatport.net/1175.json> · full dataset: <https://whatport.net/ports.json>