# WHATPORT(2875)

## NAME

port 2875 — dxmessagebase2 (registered) — Registered as the DX Message Base Transport Protocol, and almost never seen.

Protocol: TCP/UDP  
IANA: dxmessagebase2

## DESCRIPTION

IANA registers 2874 and 2875 to one person as dxmessagebase1 and dxmessagebase2, "DX Message Base Transport Protocol" — a message-base (BBS-style message store) transport. There is no public specification and no widely distributed implementation, and scan datasets show essentially nothing answering here. If 2875 is open on a host you run, the listener is some local application that picked a free port, not this registration.

## EXPOSURE

**Expose with care.** Nothing standard lives here, so the honest step is to identify the process behind the port before treating it as expected.

## CHECK

```sh
sudo lsof -nP -iTCP:2875 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 2875 (dxmessagebase2)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=2875) (iana.org)

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HTML: <https://whatport.net/2875/> · JSON: <https://whatport.net/2875.json> · full dataset: <https://whatport.net/ports.json>