HTTPfy

Port 29999 (bingbang)

IANA assigns port 29999 to bingbang: data exchange protocol for IEC61850 in wind power plants.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
bingbang TCP data exchange protocol for IEC61850 in wind power plants DEIF AS -

Registry dates for this port: registered 2012-10-15.

Check what is listening on port 29999

Linux: is anything listening on TCP 29999?
sudo ss -tlnp 'sport = :29999'
Linux / macOS: which process owns the port
sudo lsof -nP -i :29999
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':29999 '
Windows (Command Prompt)
netstat -ano | findstr :29999
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 29999 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 29999
From Windows
Test-NetConnection HOST -Port 29999

Block port 29999 in the firewall

ufw
sudo ufw deny 29999/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 29999 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 29999 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 29999' -Direction Inbound -Protocol TCP -LocalPort 29999 -Action Block

Related ports

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.