# WHATPORT(8090)

## NAME

port 8090 — Atlassian Confluence — Confluence's default HTTP port.

Protocol: TCP  
IANA: opsmessaging

## DESCRIPTION

Atlassian's installation guide states that Confluence runs on port 8090 by default and that the installer prompts for another port if it is taken. The listener is the bundled Tomcat, so a 8090 on a server with Java processes is usually a wiki. IANA registers 8090/tcp to opsmessaging, a vehicle-to-station messaging assignment you will not encounter. Confluence is normally fronted by a reverse proxy on 80/443, with 8090 left bound to all interfaces underneath.

## EXPOSURE

**Expose with care.** Confluence has a long history of critical pre-auth vulnerabilities; expose it only through a proxy on a patched version, never as a bare 8090.

## CHECK

```sh
curl -sI --max-time 5 http://TARGET:8090/
```

## SEE ALSO

- docs — [Atlassian — Installing Confluence on Linux (default port 8090)](https://confluence.atlassian.com/doc/installing-confluence-on-linux-143556824.html) (confluence.atlassian.com)
- iana — [IANA Service Name and Transport Protocol Port Number Registry — 8090](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=8090) (iana.org)

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HTML: <https://whatport.net/8090/> · JSON: <https://whatport.net/8090.json> · full dataset: <https://whatport.net/ports.json>