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// Other services

Port 1136: HHB Gateway Control

Port 1136 is assigned by IANA to hhb-gateway (HHB Gateway Control).

1136

How hhb-gateway works

Other services
client:1136hhb-gatewayresponse client:1136hhb-gatewayresponse

The client sends a request to port 1136 and the hhb-gateway 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 1136 dangerous?

We have no specific security note for port 1136. 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 1136

ServicePortTransportDescriptionReferenceUpdated
hhb-gateway 1136 TCP, UDP HHB Gateway Control - 2006-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 1136, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1136'      # process listening on 1136
sudo lsof -nP -i :1136

macOS

sudo lsof -nP -i :1136

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1136 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1136
netstat -ano | findstr :1136

From another machine

nmap -p 1136 -sV <host>
sudo nmap -sU -p 1136 <host>
nc -zv <host> 1136

Block it in the firewall

sudo ufw deny 1136/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1136" -Direction Inbound -LocalPort 1136 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1136 used for?

Port 1136 is assigned by IANA to hhb-gateway (HHB Gateway Control).

Is port 1136 TCP or UDP?

Port 1136 is registered for TCP and UDP.

Is it safe to open port 1136?

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 1136 is open?

On Linux run "ss -ltnup 'sport = :1136'", on macOS "lsof -nP -i :1136", and on Windows "netstat -ano | findstr :1136" to see the local process. From another machine, "nmap -p 1136 <host>" shows whether it is reachable.

05 Related
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