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// Other services

Port 3492: TVDUM Tray Port

Port 3492 is assigned by IANA to tvdumtray-port (TVDUM Tray Port).

3492

How tvdumtray-port works

Other services
client:3492tvdumtray-portresponse client:3492tvdumtray-portresponse

The client sends a request to port 3492 and the tvdumtray-port service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 3492 dangerous?

We have no specific security note for port 3492. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 3492

ServicePortTransportDescriptionReferenceUpdated
tvdumtray-port 3492 TCP, UDP TVDUM Tray Port - 2002-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 3492, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3492'      # process listening on 3492
sudo lsof -nP -i :3492

macOS

sudo lsof -nP -i :3492

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3492 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3492
netstat -ano | findstr :3492

From another machine

nmap -p 3492 -sV <host>
sudo nmap -sU -p 3492 <host>
nc -zv <host> 3492

Block it in the firewall

sudo ufw deny 3492/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3492" -Direction Inbound -LocalPort 3492 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3492 used for?

Port 3492 is assigned by IANA to tvdumtray-port (TVDUM Tray Port).

Is port 3492 TCP or UDP?

Port 3492 is registered for TCP and UDP.

Is it safe to open port 3492?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 3492 is open?

On Linux run "ss -ltnup 'sport = :3492'", on macOS "lsof -nP -i :3492", and on Windows "netstat -ano | findstr :3492" to see the local process. From another machine, "nmap -p 3492 <host>" shows whether it is reachable.

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