# WHATPORT(1111)

## NAME

port 1111 — LM Social Server — Registered as LM Social Server, but a memorable number that assorted software squats on.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA lists 1111 as lmsocialserver for TCP and UDP. The registration has no public specification, and the port's real-world appearances are mostly unrelated software choosing a memorable four-ones number for a local service or test listener. Nmap still ranks it among the more commonly seen ports in this block, which reflects that squatting rather than any deployment of LM Social Server.

## EXPOSURE

**Expose with care.** A convenient round number attracts ad-hoc dev listeners; confirm what is bound and whether it has any authentication before it leaves localhost.

## CHECK

```sh
sudo lsof -nP -iTCP:1111 -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)
- source — [nmap-services (port name and frequency data)](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/1111/> · JSON: <https://whatport.net/1111.json> · full dataset: <https://whatport.net/ports.json>