# WHATPORT(2500)

## NAME

port 2500 — Resource Tracking system server — Registered as the server half of a "resource tracking system" with no public specification.

Protocol: TCP  
IANA: rtsserv

## DESCRIPTION

IANA registers 2500 as rtsserv, "Resource Tracking system server", paired with rtsclient on 2501. No specification accompanies the registration and no widely deployed product defaults here, so the name identifies almost nothing in practice. Being a round number just above the well-known range, 2500 is also a popular arbitrary choice for ad-hoc services, which makes process identification the only reliable answer.

## EXPOSURE

**Expose with care.** Whatever is here was almost certainly chosen by a person, not by a protocol; find the process and judge it on its own authentication and encryption.

## CHECK

```sh
sudo lsof -nP -iTCP:2500 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 2500 (rtsserv)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=2500) (iana.org)

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HTML: <https://whatport.net/2500/> · JSON: <https://whatport.net/2500.json> · full dataset: <https://whatport.net/ports.json>