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// Other services

Port 1912: rhp-iibp

Port 1912 is assigned by IANA to rhp-iibp (rhp-iibp).

1912

How rhp-iibp works

Other services
client:1912rhp-iibpresponse client:1912rhp-iibpresponse

The client sends a request to port 1912 and the rhp-iibp 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 1912 dangerous?

We have no specific security note for port 1912. 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 1912

ServicePortTransportDescriptionReferenceUpdated
rhp-iibp 1912 TCP, UDP rhp-iibp - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1912, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1912'      # process listening on 1912
sudo lsof -nP -i :1912

macOS

sudo lsof -nP -i :1912

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1912 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1912
netstat -ano | findstr :1912

From another machine

nmap -p 1912 -sV <host>
sudo nmap -sU -p 1912 <host>
nc -zv <host> 1912

Block it in the firewall

sudo ufw deny 1912/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1912" -Direction Inbound -LocalPort 1912 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1912 used for?

Port 1912 is assigned by IANA to rhp-iibp (rhp-iibp).

Is port 1912 TCP or UDP?

Port 1912 is registered for TCP and UDP.

Is it safe to open port 1912?

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 1912 is open?

On Linux run "ss -ltnup 'sport = :1912'", on macOS "lsof -nP -i :1912", and on Windows "netstat -ano | findstr :1912" to see the local process. From another machine, "nmap -p 1912 <host>" shows whether it is reachable.

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