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// Other services

Port 6324: HR Device Network Configuration Service

Port 6324 is assigned by IANA to hrd-ncs (HR Device Network Configuration Service), hrd-ns-disc (HR Device Network service).

6324

How hrd-ncs works

Other services
client:6324hrd-ncsresponse client:6324hrd-ncsresponse

The client sends a request to port 6324 and the hrd-ncs service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 6324 dangerous?

We have no specific security note for port 6324. 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 6324

ServicePortTransportDescriptionReferenceUpdated
hrd-ncs 6324 TCP HR Device Network Configuration Service - 2011-11-29
hrd-ns-disc 6324 UDP HR Device Network service - 2011-11-29

// source: IANA service name and port number registry

03 Check it

Which program uses port 6324, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6324'      # process listening on 6324
sudo lsof -nP -i :6324

macOS

sudo lsof -nP -i :6324

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6324 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6324
netstat -ano | findstr :6324

From another machine

nmap -p 6324 -sV <host>
sudo nmap -sU -p 6324 <host>
nc -zv <host> 6324

Block it in the firewall

sudo ufw deny 6324/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6324" -Direction Inbound -LocalPort 6324 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6324 used for?

Port 6324 is assigned by IANA to hrd-ncs (HR Device Network Configuration Service), hrd-ns-disc (HR Device Network service).

Is port 6324 TCP or UDP?

Port 6324 is registered for TCP and UDP.

Is it safe to open port 6324?

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 6324 is open?

On Linux run "ss -ltnup 'sport = :6324'", on macOS "lsof -nP -i :6324", and on Windows "netstat -ano | findstr :6324" to see the local process. From another machine, "nmap -p 6324 <host>" shows whether it is reachable.

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