CyberHunter
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// Other services

Port 19412: HP-SESSMON

Port 19412 is assigned by IANA to hp-sessmon (HP-SESSMON).

19412

How hp-sessmon works

Other services
client:19412hp-sessmonresponse client:19412hp-sessmonresponse

The client sends a request to port 19412 and the hp-sessmon 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 19412 dangerous?

We have no specific security note for port 19412. 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 19412

ServicePortTransportDescriptionReferenceUpdated
hp-sessmon 19412 TCP, UDP HP-SESSMON - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 19412, and is it reachable?

Linux

sudo ss -ltnup 'sport = :19412'      # process listening on 19412
sudo lsof -nP -i :19412

macOS

sudo lsof -nP -i :19412

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 19412 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 19412
netstat -ano | findstr :19412

From another machine

nmap -p 19412 -sV <host>
sudo nmap -sU -p 19412 <host>
nc -zv <host> 19412

Block it in the firewall

sudo ufw deny 19412/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 19412" -Direction Inbound -LocalPort 19412 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 19412 used for?

Port 19412 is assigned by IANA to hp-sessmon (HP-SESSMON).

Is port 19412 TCP or UDP?

Port 19412 is registered for TCP and UDP.

Is it safe to open port 19412?

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 19412 is open?

On Linux run "ss -ltnup 'sport = :19412'", on macOS "lsof -nP -i :19412", and on Windows "netstat -ano | findstr :19412" to see the local process. From another machine, "nmap -p 19412 <host>" shows whether it is reachable.

05 Related
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