# WHATPORT(1500)

## NAME

port 1500 — IBM Storage Protect (Tivoli Storage Manager) server — Where the IBM Storage Protect backup server listens for client sessions — registered to a different product entirely.

Protocol: TCP  
IANA registry

## DESCRIPTION

IBM Storage Protect, formerly Tivoli Storage Manager and Spectrum Protect, sets its TCPPORT server option to 1500 by default; that is the port the server's TCP/IP driver waits on for backup and archive client sessions. The IANA registration for 1500 is the unrelated vlsi-lm ("VLSI License Manager"), so in practice a listener here in an enterprise environment is a backup server, not a licence daemon. Nearby ports follow from it: the default DBMTCPPORT becomes 51500 when TCPPORT is 1500.

## EXPOSURE

**Do not expose.** A backup server holds every file the estate has ever backed up; keep it on the internal backup network and let only registered clients reach it.

## CHECK

```sh
nc -vz TARGET 1500
```

## SEE ALSO

- docs — [IBM Storage Protect — TCPPORT server option (default 1500)](https://www.ibm.com/docs/en/storage-protect/8.1.21?topic=options-tcpport) (ibm.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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HTML: <https://whatport.net/1500/> · JSON: <https://whatport.net/1500.json> · full dataset: <https://whatport.net/ports.json>