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// Other services

Port 5404: HPOMS-DPS-LSTN

Port 5404 is assigned by IANA to hpoms-dps-lstn (HPOMS-DPS-LSTN).

5404

How hpoms-dps-lstn works

Other services
client:5404hpoms-dps-lstnresponse client:5404hpoms-dps-lstnresponse

The client sends a request to port 5404 and the hpoms-dps-lstn 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 5404 dangerous?

We have no specific security note for port 5404. 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 5404

ServicePortTransportDescriptionReferenceUpdated
hpoms-dps-lstn 5404 TCP, UDP HPOMS-DPS-LSTN - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5404, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5404'      # process listening on 5404
sudo lsof -nP -i :5404

macOS

sudo lsof -nP -i :5404

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5404 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5404
netstat -ano | findstr :5404

From another machine

nmap -p 5404 -sV <host>
sudo nmap -sU -p 5404 <host>
nc -zv <host> 5404

Block it in the firewall

sudo ufw deny 5404/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5404" -Direction Inbound -LocalPort 5404 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5404 used for?

Port 5404 is assigned by IANA to hpoms-dps-lstn (HPOMS-DPS-LSTN).

Is port 5404 TCP or UDP?

Port 5404 is registered for TCP and UDP.

Is it safe to open port 5404?

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 5404 is open?

On Linux run "ss -ltnup 'sport = :5404'", on macOS "lsof -nP -i :5404", and on Windows "netstat -ano | findstr :5404" to see the local process. From another machine, "nmap -p 5404 <host>" shows whether it is reachable.

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