Port 6100SynchroNet-db

SynchroNet-db is an assigned TCP/UDP service on port 6100, registered to Arne Haugland.

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

1 other service is registered on port 6100. compare all 2 →

Technical Details

what runs on :6100

SynchroNet-db is registered on port :6100 over tcp and udp to Arne Haugland. 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 found open rarely. What's listening is often not the registered service, so check before you assume.

IANA has recorded this port being used for something it was not assigned for.

find what's listening on :6100

this machine

# linux
sudo ss -tulpn 'sport = :6100'

# macos / bsd
sudo lsof -nP -i :6100

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6100

another host

nmap -sV -p T:6100 <host>
sudo nmap -sU -sV -p U:6100 <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 :6100

risk score

1/ 10safe

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

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 :6100 yet

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

Record

iana registry entry

port: :6100
service: SynchroNet-db
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns TCP and UDP port 6100 to the SynchroNet-db service name and lists Arne Haugland as the registrant. Public documentation describing the protocol or deployments is not established here.
lookups: 0rank 993
added: 2026-09-06
updated: 2026-09-06
references: IANA service name registry — port 6100

Something wrong?

This record is maintained by the engineers who use port 6100. 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 2026-09-06.

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

browse categories →

ports registered around :6100, by lookups.

port	service	proto	category	risk	views
:6101	Backup Exec Browser	TCP	File Transfer	caution	15.2k
:6112	Battle.net Gaming	TCP	Gaming	caution	13.6k
:6086	PDTP	TCP	File Transfer	caution	11.5k
:6129	DameWare Remote Control	TCP	Remote Access	caution	10.4k
:6112	DTSPCD	TCPUDP	Remote Access	caution	10.4k
:6112	Club Penguin Server	TCP	Gaming	caution	9.0k
:6113	Club Penguin	TCP	Gaming	caution	6.8k
:6110	HP Softbench CM	TCPUDP	Network Services	caution	5.7k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :6100SynchroNet-db

Technical Details

Security Information

Related Ports

Port 6100SynchroNet-db