# WHATPORT(5631)

## NAME

port 5631 — pcAnywhere data (pcanywheredata) — Symantec pcAnywhere's remote-control data channel — on a modern network, a stranded legacy host.

Protocol: TCP  
IANA registry

## DESCRIPTION

5631/tcp carries the session data for Symantec pcAnywhere remote control, paired with 5632/udp, which answers host discovery broadcasts and is how scanners enumerate pcAnywhere hosts. Symantec discontinued the product after its source code leaked in 2012, and at the time advised customers to disable it until patched. Anything still answering here is an unmaintained remote-control host, typically on an old Windows server or an industrial machine nobody has touched in years.

## EXPOSURE

**Do not expose.** Discontinued, unpatched remote-desktop software with a history of weak authentication — an internet-facing 5631 is a standing invitation.

## CHECK

```sh
nc -vz -w 3 TARGET 5631
```

## SEE ALSO

- iana — [IANA port registry — 5631 (pcanywheredata)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5631) (iana.org)

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HTML: <https://whatport.net/5631/> · JSON: <https://whatport.net/5631.json> · full dataset: <https://whatport.net/ports.json>