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// Other services

Port 6500: BoKS Master

Port 6500 is assigned by IANA to boks (BoKS Master).

6500

How boks works

Other services
client:6500boksresponse client:6500boksresponse

The client sends a request to port 6500 and the boks 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 6500 dangerous?

We have no specific security note for port 6500. 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 6500

ServicePortTransportDescriptionReferenceUpdated
boks 6500 TCP, UDP BoKS Master - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6500, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6500'      # process listening on 6500
sudo lsof -nP -i :6500

macOS

sudo lsof -nP -i :6500

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6500 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6500
netstat -ano | findstr :6500

From another machine

nmap -p 6500 -sV <host>
sudo nmap -sU -p 6500 <host>
nc -zv <host> 6500

Block it in the firewall

sudo ufw deny 6500/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6500" -Direction Inbound -LocalPort 6500 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6500 used for?

Port 6500 is assigned by IANA to boks (BoKS Master).

Is port 6500 TCP or UDP?

Port 6500 is registered for TCP and UDP.

Is it safe to open port 6500?

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 6500 is open?

On Linux run "ss -ltnup 'sport = :6500'", on macOS "lsof -nP -i :6500", and on Windows "netstat -ano | findstr :6500" to see the local process. From another machine, "nmap -p 6500 <host>" shows whether it is reachable.

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