Port 16367Network Serial Extension Ports Three
TCP and UDP port 16367 is assigned to Network Serial Extension Ports Three; no common deployment is documented.
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
2 transports registered
payload readable on path
registered with iana
safe
rank 993 of 6,369 · top 16%
also known as netserialext3
Technical Details
what runs on :16367Network Serial Extension Ports Three is registered on port :16367 over tcp and udp to Michael J Hoy. 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 :16367
# linux
sudo ss -tulpn 'sport = :16367'
# macos / bsd
sudo lsof -nP -i :16367
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :16367nmap -sV -p T:16367 <host>
sudo nmap -sU -sV -p U:16367 <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 :16367risk 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 :16367 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :16367, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :16384 | Iron Mountain Backup | UDP | File Transfer | caution | 7.4k |
| :16361 | Network Serial Extension Ports Two | TCPUDP | Network Services | safe | 0 |
| :16310 | Policy Distribute, Update Notification | TCPUDP | Network Services | safe | 0 |
| :16309 | etb4j | TCPUDP | — | safe | 0 |
| :16311 | Policy Definition and Update Management | TCPUDP | Network Services | safe | 0 |
| :16360 | Network Serial Extension Port 1 | TCPUDP | Network Services | safe | 0 |
| :16368 | Network Serial Extension Ports Four | TCPUDP | Network Services | safe | 0 |
| :16384 | connected | TCPUDP | — | safe | 0 |
risk mix of the 8 listed
- safe88%
- caution13%
0 of 8 encrypted