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Port 2369 (bif-p2p)

IANA assigns port 2369 to bif-p2p: Blockchain Identifier InFrastructure P2P.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
bif-p2p TCP Blockchain Identifier InFrastructure P2P Li Zhiping -
bif-p2p UDP Blockchain Identifier InFrastructure P2P Li Zhiping -

Registry dates for this port: registered 2023-03-06.

Check what is listening on port 2369

Linux: is anything listening on TCP 2369?
sudo ss -tlnp 'sport = :2369'
Linux: UDP 2369
sudo ss -ulnp 'sport = :2369'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2369
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2369 '
Windows (Command Prompt)
netstat -ano | findstr :2369
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2369 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2369
From Windows
Test-NetConnection HOST -Port 2369
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2369

Block port 2369 in the firewall

ufw
sudo ufw deny 2369/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2369 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2369 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2369' -Direction Inbound -Protocol TCP -LocalPort 2369 -Action Block
ufw
sudo ufw deny 2369/udp
iptables
sudo iptables -A INPUT -p udp --dport 2369 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2369 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2369' -Direction Inbound -Protocol UDP -LocalPort 2369 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.