CyberHunter
Local dataset, no network
// Other services

Port 2208: HP I/O Backend

Port 2208 is assigned by IANA to hpiod (HP I/O Backend).

2208

How hpiod works

Other services
client:2208hpiodresponse client:2208hpiodresponse

The client sends a request to port 2208 and the hpiod 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 2208 dangerous?

We have no specific security note for port 2208. 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 2208

ServicePortTransportDescriptionReferenceUpdated
hpiod 2208 TCP, UDP HP I/O Backend - 2006-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 2208, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2208'      # process listening on 2208
sudo lsof -nP -i :2208

macOS

sudo lsof -nP -i :2208

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2208 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2208
netstat -ano | findstr :2208

From another machine

nmap -p 2208 -sV <host>
sudo nmap -sU -p 2208 <host>
nc -zv <host> 2208

Block it in the firewall

sudo ufw deny 2208/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2208" -Direction Inbound -LocalPort 2208 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2208 used for?

Port 2208 is assigned by IANA to hpiod (HP I/O Backend).

Is port 2208 TCP or UDP?

Port 2208 is registered for TCP and UDP.

Is it safe to open port 2208?

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 2208 is open?

On Linux run "ss -ltnup 'sport = :2208'", on macOS "lsof -nP -i :2208", and on Windows "netstat -ano | findstr :2208" to see the local process. From another machine, "nmap -p 2208 <host>" shows whether it is reachable.

05 Related
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