Port 8889Desktop Data TCP 1

Obscure TCP assignment for the Desktop Data TCP 1 service, associated with Fred Yao.

transport
tcp

single transport

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
1/10

safe

lookups
0

rank 993 of 4,765 · top 21%

also known as ddi-tcp-2

1 other service is registered on port 8889. compare all 2 →

Technical Details

what runs on :8889

Desktop Data TCP 1 is registered on port :8889 over tcp to Fred Yao. 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 :8889

this machine
# linux
sudo ss -tlpn 'sport = :8889'

# macos / bsd
sudo lsof -nP -i :8889

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :8889
another host
nmap -sV -p T:8889 <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 :8889

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

every listening transport is another surface to filter at the edge

security overview

no security notes recorded for :8889 yet

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

ports registered around :8889, by lookups.

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted