# WHATPORT(1124)

## NAME

port 1124 — HP VMM Control — Registered to HP's virtual machine manager control channel — an HP-UX-era management port.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 1124 as hpvmmcontrol, "HP VMM Control", the control channel for HP's virtual machine manager on Integrity/HP-UX systems. It is a hypervisor management interface, not a workload port, so it belongs to a shrinking population of legacy HP servers. Nmap's data confirms it is rarely found open.

## EXPOSURE

**Do not expose.** A hypervisor control channel gives control over every guest on the host; it belongs on an isolated management network, never a public interface.

## CHECK

```sh
sudo lsof -nP -iTCP:1124 -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/1124/> · JSON: <https://whatport.net/1124.json> · full dataset: <https://whatport.net/ports.json>