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// Other services

Port 6507: BoKS Dir Server, Private Port

Port 6507 is assigned by IANA to bdir_priv (BoKS Dir Server, Private Port), bdir-priv (BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv".).

6507

How bdir_priv works

Other services
client:6507bdir_privresponse client:6507bdir_privresponse

The client sends a request to port 6507 and the bdir_priv service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 6507 dangerous?

We have no specific security note for port 6507. 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 6507

ServicePortTransportDescriptionReferenceUpdated
bdir_priv 6507 TCP, UDP BoKS Dir Server, Private Port - -
bdir-priv 6507 TCP, UDP BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv". - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6507, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6507'      # process listening on 6507
sudo lsof -nP -i :6507

macOS

sudo lsof -nP -i :6507

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6507 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6507
netstat -ano | findstr :6507

From another machine

nmap -p 6507 -sV <host>
sudo nmap -sU -p 6507 <host>
nc -zv <host> 6507

Block it in the firewall

sudo ufw deny 6507/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6507" -Direction Inbound -LocalPort 6507 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6507 used for?

Port 6507 is assigned by IANA to bdir_priv (BoKS Dir Server, Private Port), bdir-priv (BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv".).

Is port 6507 TCP or UDP?

Port 6507 is registered for TCP and UDP.

Is it safe to open port 6507?

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 6507 is open?

On Linux run "ss -ltnup 'sport = :6507'", on macOS "lsof -nP -i :6507", and on Windows "netstat -ano | findstr :6507" to see the local process. From another machine, "nmap -p 6507 <host>" shows whether it is reachable.

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