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// Other services

Port 2506: jbroker

Port 2506 is assigned by IANA to jbroker (jbroker).

2506

How jbroker works

Other services
client:2506jbrokerresponse client:2506jbrokerresponse

The client sends a request to port 2506 and the jbroker 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 2506 dangerous?

We have no specific security note for port 2506. 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 2506

ServicePortTransportDescriptionReferenceUpdated
jbroker 2506 TCP, UDP jbroker - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2506, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2506'      # process listening on 2506
sudo lsof -nP -i :2506

macOS

sudo lsof -nP -i :2506

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2506 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2506
netstat -ano | findstr :2506

From another machine

nmap -p 2506 -sV <host>
sudo nmap -sU -p 2506 <host>
nc -zv <host> 2506

Block it in the firewall

sudo ufw deny 2506/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2506" -Direction Inbound -LocalPort 2506 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2506 used for?

Port 2506 is assigned by IANA to jbroker (jbroker).

Is port 2506 TCP or UDP?

Port 2506 is registered for TCP and UDP.

Is it safe to open port 2506?

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 2506 is open?

On Linux run "ss -ltnup 'sport = :2506'", on macOS "lsof -nP -i :2506", and on Windows "netstat -ano | findstr :2506" to see the local process. From another machine, "nmap -p 2506 <host>" shows whether it is reachable.

05 Related
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