CyberHunter
Local dataset, no network
// Other services

Port 7676: iMQ Broker Rendezvous

Port 7676 is assigned by IANA to imqbrokerd (iMQ Broker Rendezvous).

7676

How imqbrokerd works

Other services
client:7676imqbrokerdresponse client:7676imqbrokerdresponse

The client sends a request to port 7676 and the imqbrokerd 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 7676 dangerous?

We have no specific security note for port 7676. 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 7676

ServicePortTransportDescriptionReferenceUpdated
imqbrokerd 7676 TCP, UDP iMQ Broker Rendezvous - 2002-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 7676, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7676'      # process listening on 7676
sudo lsof -nP -i :7676

macOS

sudo lsof -nP -i :7676

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7676 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7676
netstat -ano | findstr :7676

From another machine

nmap -p 7676 -sV <host>
sudo nmap -sU -p 7676 <host>
nc -zv <host> 7676

Block it in the firewall

sudo ufw deny 7676/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7676" -Direction Inbound -LocalPort 7676 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7676 used for?

Port 7676 is assigned by IANA to imqbrokerd (iMQ Broker Rendezvous).

Is port 7676 TCP or UDP?

Port 7676 is registered for TCP and UDP.

Is it safe to open port 7676?

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 7676 is open?

On Linux run "ss -ltnup 'sport = :7676'", on macOS "lsof -nP -i :7676", and on Windows "netstat -ano | findstr :7676" to see the local process. From another machine, "nmap -p 7676 <host>" shows whether it is reachable.

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