CyberHunter
Local dataset, no network
// Other services

Port 6409: Business Objects Enterprise internal server

Port 6409 is assigned by IANA to boe-resssvr3 (Business Objects Enterprise internal server).

6409

How boe-resssvr3 works

Other services
client:6409boe-resssvr3response client:6409boe-resssvr3response

The client sends a request to port 6409 and the boe-resssvr3 service answers.

Transport
None registered
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 6409 dangerous?

We have no specific security note for port 6409. 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 6409

ServicePortTransportDescriptionReferenceUpdated
boe-resssvr3 6409 - Business Objects Enterprise internal server - 2026-05-27

// source: IANA service name and port number registry

03 Check it

Which program uses port 6409, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6409'      # process listening on 6409
sudo lsof -nP -i :6409

macOS

sudo lsof -nP -i :6409

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6409 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6409
netstat -ano | findstr :6409

From another machine

nmap -p 6409 -sV <host>
nc -zv <host> 6409

Block it in the firewall

sudo ufw deny 6409/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6409" -Direction Inbound -LocalPort 6409 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6409 used for?

Port 6409 is assigned by IANA to boe-resssvr3 (Business Objects Enterprise internal server).

Is port 6409 TCP or UDP?

Port 6409 has no registered transport. Any program can still use it over TCP or UDP.

Is it safe to open port 6409?

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 6409 is open?

On Linux run "ss -ltnup 'sport = :6409'", on macOS "lsof -nP -i :6409", and on Windows "netstat -ano | findstr :6409" to see the local process. From another machine, "nmap -p 6409 <host>" shows whether it is reachable.

05 Related
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