# WHATPORT(6789)

## NAME

port 6789 — Oracle Solaris admin console (radg / smc-https) — The Oracle/Sun Java Web Console over HTTPS; registered at IANA today as radg.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA's current entry for 6789/tcp is radg, "GSS-API for the Oracle Remote Administration Daemon", registered in 2002 and updated in 2016; older service tables, including nmap's, still print the earlier names smc-https and ibm-db2-admin. In practice this is the port of the Oracle Java Web Console on Solaris, reached as https://hostname:6789, and Oracle's documentation notes the console ships configured to refuse remote connections unless the tcp_listen property is turned on. An open 6789 therefore usually means a Solaris box with its administration console deliberately opened up.

## EXPOSURE

**Do not expose.** A root-capable system administration console. Oracle's default is local-only for a reason; if it must be remote, reach it over a VPN rather than from the internet.

## CHECK

```sh
curl -skI https://TARGET:6789/
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 6789 (radg)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=6789) (iana.org)
- docs — [Oracle Java Web Console Reference Information — Oracle Solaris Administration: Basic Administration](https://docs.oracle.com/cd/E26505_01/html/E29492/ewpoy.html) (docs.oracle.com)

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