Port 3169: SERVERVIEW-AS — Fujitsu's Server Management HTTP Interface

What Port 3169 Is

Port 3169 is registered with IANA under the name SERVERVIEW-AS — the application server component of Fujitsu's ServerView Suite, an enterprise platform for managing Fujitsu PRIMERGY servers.

In that context, port 3169 serves the HTTP web interface for ServerView's management console. Port 3170 handles the HTTPS version. If you work with Fujitsu rack servers and see traffic on 3169, it's almost certainly ServerView doing its job.

Outside of Fujitsu server environments, this port is effectively invisible.

The Registered Ports Range

Port 3169 lives in the registered ports range: 1024–49151.

IANA divides the full 0–65535 port space into three bands:

Registered ports are assigned on request. A vendor or project submits an application to IANA, and if approved, the port gets a name in the registry. The assignment is voluntary — no enforcement mechanism exists. Any process on your system can listen on port 3169 regardless of what IANA says about it.

This matters: a registered name doesn't mean the port is in use on your network. It means someone filed paperwork.¹

Other Observed Uses

Beyond Fujitsu ServerView, port 3169 occasionally appears in other contexts:

Rainbow Six Vegas (UDP): Ubisoft's multiplayer servers have been documented using the UDP range 3074–3174, which includes 3169.² If you're troubleshooting game connectivity or configuring NAT rules, the whole range is relevant.

MyDoom.A: This 2004 email worm opened a backdoor on a random port in the range 3127–3198. Port 3169 falls in that band. If you're analyzing old malware logs or incident reports from that era, an unexpected listener on 3169 was worth investigating.³

How to Check What's Using Port 3169

If you see traffic on port 3169 and want to know why:

Linux / macOS:

# Show what process is listening on port 3169
ss -tlnp | grep 3169
# Or with lsof
lsof -i :3169

Windows:

# Show listening ports with process IDs
netstat -aon | findstr 3169
# Then look up the PID
tasklist | findstr <PID>

Network-wide:

# Scan a host to see if 3169 is open
nmap -p 3169 <host>

Why Unassigned (or Rarely Used) Ports Matter

The registered ports range contains thousands of entries like this one — ports with official names attached to software that never became widespread. They occupy the registry without occupying real networks.

This creates useful ambiguity. When a port is truly unassigned, any traffic on it is unexpected by definition — no legitimate application claims it. Security teams use this: unexpected listeners on unregistered ports are high-signal anomalies. Unexpected listeners on obscure registered ports are slightly lower signal, but still worth investigating. Either way, "I don't recognize this" is the right instinct.

Port 3169 is registered. It has a name. If you see it in your environment and you're not running Fujitsu ServerView, ask why.