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// Other services

Port 2369: Blockchain Identifier InFrastructure P2P

Port 2369 is assigned by IANA to bif-p2p (Blockchain Identifier InFrastructure P2P).

2369

How bif-p2p works

Other services
client:2369bif-p2presponse client:2369bif-p2presponse

The client sends a request to port 2369 and the bif-p2p 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 2369 dangerous?

We have no specific security note for port 2369. 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 2369

ServicePortTransportDescriptionReferenceUpdated
bif-p2p 2369 TCP, UDP Blockchain Identifier InFrastructure P2P - 2023-06-29

// source: IANA service name and port number registry

03 Check it

Which program uses port 2369, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2369'      # process listening on 2369
sudo lsof -nP -i :2369

macOS

sudo lsof -nP -i :2369

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2369 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2369
netstat -ano | findstr :2369

From another machine

nmap -p 2369 -sV <host>
sudo nmap -sU -p 2369 <host>
nc -zv <host> 2369

Block it in the firewall

sudo ufw deny 2369/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2369" -Direction Inbound -LocalPort 2369 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2369 used for?

Port 2369 is assigned by IANA to bif-p2p (Blockchain Identifier InFrastructure P2P).

Is port 2369 TCP or UDP?

Port 2369 is registered for TCP and UDP.

Is it safe to open port 2369?

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 2369 is open?

On Linux run "ss -ltnup 'sport = :2369'", on macOS "lsof -nP -i :2369", and on Windows "netstat -ano | findstr :2369" to see the local process. From another machine, "nmap -p 2369 <host>" shows whether it is reachable.

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