Port 5584BeInSync-Web

TCP and UDP 5584 are assigned to BeInSync-Web; public protocol and deployment details are not documented.

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

also known as bis-web

Technical Details

what runs on :5584

BeInSync-Web is registered on port :5584 over tcp and udp to Adi Ruppin, assigned August 2005. 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 :5584

this machine

# linux
sudo ss -tulpn 'sport = :5584'

# macos / bsd
sudo lsof -nP -i :5584

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5584

another host

nmap -sV -p T:5584 <host>
sudo nmap -sU -sV -p U:5584 <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 :5584

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 :5584 yet

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

Record

iana registry entry

port: :5584
service: BeInSync-Web
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA entry identifies the service as BeInSync-Web and lists Adi Ruppin as its registrant. The assignment alone does not establish what software listens on the port or whether it remains in use.
lookups: 0rank 993
added: 2026-10-08
updated: 2026-10-08
references: IANA service name registry — port 5584

Something wrong?

This record is maintained by the engineers who use port 5584. 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 2026-10-08.

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 :5584, by lookups.

port	service	proto	category	risk	views
:5555	Freeciv	TCP	Security	caution	26.9k
:5632	pcAnywhere Status	UDP	Security	caution	13.4k
:5631	Symantec pcAnywhere	TCP	Security	caution	10.3k
:5550	HP Data Protector	TCP	File Transfer	caution	8.2k
:5591	Tidal Scheduler Master	TCP	System	caution	6.9k
:5556	Freeciv	TCPUDP	Gaming	caution	6.1k
:5629	Symantec Storage Foundation for Database	TCPUDP	Databases	safe	0
:5566	Westec Connect	TCP	—	safe	0

risk mix of the 8 listed

safe25%
caution75%

0 of 8 encrypted

Port :5584BeInSync-Web

Technical Details

Security Information

Related Ports

Port 5584BeInSync-Web