# WHATPORT(1311)

## NAME

port 1311 — Dell OpenManage Server Administrator — The HTTPS web console for Dell OpenManage Server Administrator — a server's hardware admin plane.

Protocol: TCP  
IANA registry

## DESCRIPTION

Dell OpenManage Server Administrator (OMSA) runs an embedded web server on TCP 1311 and serves its console over HTTPS at https://host:1311. Through it an authenticated operator reads hardware health, RAID and firmware state, and performs management actions on a PowerEdge server. The IANA registration for 1311 is the unrelated "RxMon", so on a scan of Dell hardware treat 1311 as OMSA. Its presence marks the host as a physical Dell server with the management agent installed.

## EXPOSURE

**Do not expose.** This is a hardware administration console with credentials in front of it; OMSA has a history of remotely exploitable CVEs and belongs on a management VLAN, never on the internet.

## CHECK

```sh
openssl s_client -connect TARGET:1311 -servername TARGET </dev/null
```

## SEE ALSO

- docs — [Dell — Support for OpenManage Server Administrator (OMSA), web console on port 1311](https://www.dell.com/support/kbdoc/en-us/000132087/support-for-dell-emc-openmanage-server-administrator-omsa) (dell.com)
- 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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