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// Other services

Port 9954: HaloteC Instrument Network Protocol

Port 9954 is assigned by IANA to hinp (HaloteC Instrument Network Protocol).

9954

How hinp works

Other services
client:9954hinpresponse client:9954hinpresponse

The client sends a request to port 9954 and the hinp service answers.

Transport
TCP
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 9954 dangerous?

We have no specific security note for port 9954. 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 9954

ServicePortTransportDescriptionReferenceUpdated
hinp 9954 TCP HaloteC Instrument Network Protocol - 2012-02-07
-9954-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 9954, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9954'      # process listening on 9954
sudo lsof -nP -i :9954

macOS

sudo lsof -nP -i :9954

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9954 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9954
netstat -ano | findstr :9954

From another machine

nmap -p 9954 -sV <host>
nc -zv <host> 9954

Block it in the firewall

sudo ufw deny 9954/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9954" -Direction Inbound -LocalPort 9954 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9954 used for?

Port 9954 is assigned by IANA to hinp (HaloteC Instrument Network Protocol).

Is port 9954 TCP or UDP?

Port 9954 is registered for TCP.

Is it safe to open port 9954?

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 9954 is open?

On Linux run "ss -ltnup 'sport = :9954'", on macOS "lsof -nP -i :9954", and on Windows "netstat -ano | findstr :9954" to see the local process. From another machine, "nmap -p 9954 <host>" shows whether it is reachable.

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