# WHATPORT(8083)

## NAME

port 8083 — HTTP alternate (IANA: us-srv) — Registered as Utilistor Server; in the field, one more alternate HTTP port.

Protocol: TCP  
IANA: us-srv

## DESCRIPTION

IANA lists 8083/tcp and /udp as us-srv, the server half of the Utilistor pair that owns 8082. Nmap keeps the same name and records it as uncommon. Like its neighbours it is used generically: an extra HTTP listener, a management interface, or a service published from a container. Fingerprint it rather than trusting the registered name.

## EXPOSURE

**Expose with care.** Whether this is safe depends entirely on the application answering. Check whether it requires authentication and whether it was ever supposed to be reachable from outside.

## CHECK

```sh
curl -sI http://TARGET:8083/
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 8083 (us-srv)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=8083) (iana.org)
- source — [nmap/nmap — nmap-services (8083/tcp us-srv)](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/8083/> · JSON: <https://whatport.net/8083.json> · full dataset: <https://whatport.net/ports.json>