# WHATPORT(2005)

## NAME

port 2005 — berknet / deslogin (legacy) — A legacy registration — berknet at IANA, deslogin in old /etc/services, Cisco line 5 in practice.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA registers 2005/tcp as berknet and 2005/udp as oracle; traditional Unix /etc/services files instead call it deslogin, an encrypted symmetric telnet replacement from the early 1990s. None of these are in real use today. A listener on 2005 is realistically line 5 of a Cisco terminal server (reverse telnet uses 2000 plus the line number) or an unrelated local application.

## EXPOSURE

**Expose with care.** Fingerprint what is actually there; if it is a device console over reverse telnet, that is cleartext management access and must stay internal.

## CHECK

```sh
nc -vz TARGET 2005
```

## SEE ALSO

- iana — [IANA port registry — 2005 (berknet)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=2005) (iana.org)

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HTML: <https://whatport.net/2005/> · JSON: <https://whatport.net/2005.json> · full dataset: <https://whatport.net/ports.json>