# WHATPORT(5633)

## NAME

port 5633 — Backup Exec Operations Request Listener (beorl) — A Veritas Backup Exec server listening for DBA-initiated Oracle and DB2 backup jobs.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA registered 5633 in 2006 as beorl, the BE Operations Request Listener, part of Symantec's — now Veritas' — Backup Exec. The media server opens it so database administrators can start Oracle and DB2 backups from the database host rather than from the backup console. On a scan it identifies the machine as a backup server, which is exactly the machine an attacker wants.

## EXPOSURE

**Do not expose.** Backup infrastructure holds copies of everything; the listener belongs on the internal backup network, reachable only from the database hosts that need it.

## CHECK

```sh
nc -vz -w 3 TARGET 5633
```

## SEE ALSO

- iana — [IANA port registry — 5633 (beorl)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5633) (iana.org)

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