Port 6507BoKS Directory Server (Private)

Historic private-port assignment for the BoKS Directory Server, not commonly observed open in internet scans.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as bdir_priv, bdir-priv, BoKS Dir Server (Private)

Technical Details

what runs on :6507

BoKS Directory Server (Private) is registered on port :6507 over tcp and udp to Magnus Nystrom. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :6507

this machine

# linux
sudo ss -tulpn 'sport = :6507'

# macos / bsd
sudo lsof -nP -i :6507

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6507

another host

nmap -sV -p T:6507 <host>
sudo nmap -sU -sV -p U:6507 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :6507

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.6 across 1,723 ports — this one sits 1.6 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

no security notes recorded for :6507 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :6507
service: BoKS Directory Server (Private)
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: Network Services
usage: IANA assigns this port to the BoKS Directory Server's private port and lists the entry as an alias of “bdir-priv.” The assignment is attributed to Magnus Nystrom; it is historic and may not work with common service-discovery mechanisms.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6507

Something wrong?

This record is maintained by the engineers who use port 6507. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-10.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 1,723 in network services →

the 8 most looked-up other ports in network services — 1,723 ports carry that label.

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:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :6507BoKS Directory Server (Private)

Technical Details

Security Information

Related Ports

Port 6507BoKS Directory Server (Private)