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// Other services

Port 2329: NVD

Port 2329 is assigned by IANA to nvd (NVD).

2329

How nvd works

Other services
client:2329nvdresponse client:2329nvdresponse

The client sends a request to port 2329 and the nvd 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 2329 dangerous?

We have no specific security note for port 2329. 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 2329

ServicePortTransportDescriptionReferenceUpdated
nvd 2329 TCP, UDP NVD - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2329, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2329'      # process listening on 2329
sudo lsof -nP -i :2329

macOS

sudo lsof -nP -i :2329

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2329 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2329
netstat -ano | findstr :2329

From another machine

nmap -p 2329 -sV <host>
sudo nmap -sU -p 2329 <host>
nc -zv <host> 2329

Block it in the firewall

sudo ufw deny 2329/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2329" -Direction Inbound -LocalPort 2329 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2329 used for?

Port 2329 is assigned by IANA to nvd (NVD).

Is port 2329 TCP or UDP?

Port 2329 is registered for TCP and UDP.

Is it safe to open port 2329?

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 2329 is open?

On Linux run "ss -ltnup 'sport = :2329'", on macOS "lsof -nP -i :2329", and on Windows "netstat -ano | findstr :2329" to see the local process. From another machine, "nmap -p 2329 <host>" shows whether it is reachable.

05 Related
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