# WHATPORT(1108)

## NAME

port 1108 — ratio-adp — A vendor registration (ratio-adp) with no public protocol behind it.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA assigns 1108 to ratio-adp on TCP and UDP. The registration is a vendor assignment with no published specification or open implementation, and Nmap sees it open on a tiny fraction of scanned hosts. Any open 1108 on your network should be traced to a process rather than read off the registry.

## EXPOSURE

**Expose with care.** Unidentified listener: name the process first, then decide. Vendor application ports rarely have authentication worth exposing.

## CHECK

```sh
sudo lsof -nP -iTCP:1108 -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/1108/> · JSON: <https://whatport.net/1108.json> · full dataset: <https://whatport.net/ports.json>