Port 8981Network of Devices Client
UDP/8981 is assigned to the Network of Devices Client service; no established protocol behavior or common deployment is known.
- transport
- udp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
single transport
payload readable on path
registered with iana
safe
rank 993 of 6,103 · top 16%
also known as nod-client
Technical Details
what runs on :8981Network of Devices Client is registered on port :8981 over udp to David Muller, assigned February 2015. 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 :8981
# linux
sudo ss -ulpn 'sport = :8981'
# macos / bsd
sudo lsof -nP -i :8981
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :8981sudo nmap -sU -sV -p U:8981 <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 detailsSecurity Information
exposure of :8981risk 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
udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
no security notes recorded for :8981 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :8981, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :9001 | ETL Service Manager | TCPUDP | Databases | caution | 28.6k |
| :9043 | WebSphere Admin Console (SSL) | TCP | Web Services | caution | 28.0k |
| :9001 | SharePoint Authoring | Web Services | caution | 26.3k | |
| :9001 | DBGp Proxy | TCPtls | Network Services | caution | 25.5k |
| :9001 | Tor Network | Security | caution | 23.7k | |
| :9001 | Cisco XRemote | Remote Access | caution | 23.7k | |
| :9009 | Pichat Server | TCPUDP | Network Services | caution | 19.7k |
| :9000 | SqueezeCenter | TCP | Web Services | caution | 14.4k |
risk mix of the 8 listed
- caution100%
1 of 8 encrypted