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// Other services

Port 3227: DiamondWave NMS Server

Port 3227 is assigned by IANA to dwnmshttp (DiamondWave NMS Server).

3227

How dwnmshttp works

Other services
client:3227dwnmshttpresponse client:3227dwnmshttpresponse

The client sends a request to port 3227 and the dwnmshttp 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 3227 dangerous?

We have no specific security note for port 3227. 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 3227

ServicePortTransportDescriptionReferenceUpdated
dwnmshttp 3227 TCP, UDP DiamondWave NMS Server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3227, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3227'      # process listening on 3227
sudo lsof -nP -i :3227

macOS

sudo lsof -nP -i :3227

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3227 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3227
netstat -ano | findstr :3227

From another machine

nmap -p 3227 -sV <host>
sudo nmap -sU -p 3227 <host>
nc -zv <host> 3227

Block it in the firewall

sudo ufw deny 3227/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3227" -Direction Inbound -LocalPort 3227 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3227 used for?

Port 3227 is assigned by IANA to dwnmshttp (DiamondWave NMS Server).

Is port 3227 TCP or UDP?

Port 3227 is registered for TCP and UDP.

Is it safe to open port 3227?

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 3227 is open?

On Linux run "ss -ltnup 'sport = :3227'", on macOS "lsof -nP -i :3227", and on Windows "netstat -ano | findstr :3227" to see the local process. From another machine, "nmap -p 3227 <host>" shows whether it is reachable.

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