Port 8894Desktop Data UDP 6: COAL application

An obscure UDP assignment for the COAL application, with no established public deployment known.

transport
udp

single transport

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
1/10

safe

lookups
0

rank 993 of 6,097 · top 16%

also known as ddi-udp-7, ddi-tcp-7, COAL application

Technical Details

what runs on :8894

Desktop Data UDP 6: COAL application is registered on port :8894 over udp 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 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 :8894

this machine
# linux
sudo ss -ulpn 'sport = :8894'

# macos / bsd
sudo lsof -nP -i :8894

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :8894
another host
sudo nmap -sU -sV -p U:8894 <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 :8894

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 1,833 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

udp

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

security overview

no security notes recorded for :8894 yet

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

the 8 most looked-up other ports in network services — 1,833 ports carry that label.

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted