# WHATPORT(19315)

## NAME

port 19315 — Sassafras KeyServer shadow (keyshadow) — The companion "key shadow" port of Sassafras KeyServer, registered alongside 19283.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA registers 19315 as keyshadow, "Key Shadow for SASSAFRAS", to the same assignee as 19283 (keysrvr). It belongs to the Sassafras KeyServer license-management system and appears on the same hosts, so finding one usually means finding the other. Outside that product the number has no documented use.

## EXPOSURE

**Do not expose.** Same reasoning as 19283: part of an internal license-management fabric that managed clients trust implicitly. Keep it inside.

## CHECK

```sh
nc -vz -w 3 TARGET 19315
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 19315 (keyshadow)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=19315) (iana.org)

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