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Port 1136 (hhb-gateway)

IANA assigns port 1136 to hhb-gateway: HHB Gateway Control.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hhb-gateway TCP HHB Gateway Control Richard Harwell -
hhb-gateway UDP HHB Gateway Control Richard Harwell -

Registry dates for this port: registered 2006-02.

Check what is listening on port 1136

Linux: is anything listening on TCP 1136?
sudo ss -tlnp 'sport = :1136'
Linux: UDP 1136
sudo ss -ulnp 'sport = :1136'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1136
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1136 '
Windows (Command Prompt)
netstat -ano | findstr :1136
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1136 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1136
From Windows
Test-NetConnection HOST -Port 1136
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1136

Block port 1136 in the firewall

ufw
sudo ufw deny 1136/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1136 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1136 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1136' -Direction Inbound -Protocol TCP -LocalPort 1136 -Action Block
ufw
sudo ufw deny 1136/udp
iptables
sudo iptables -A INPUT -p udp --dport 1136 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1136 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1136' -Direction Inbound -Protocol UDP -LocalPort 1136 -Action Block

Related ports

1134aplx1135omnivision1137trim1138encrypted-admin, encrypted_admin

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