Port 8191Limner Pressure
Limner Pressure is an obscure TCP service assignment with no established public usage.
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
single transport
payload readable on path
registered with iana
safe
rank 993 of 6,005 · top 17%
Technical Details
what runs on :8191Limner Pressure is registered on port :8191 over tcp to Aaron Kleinsteiber, assigned January 2014. 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 :8191
# linux
sudo ss -tlpn 'sport = :8191'
# macos / bsd
sudo lsof -nP -i :8191
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :8191nmap -sV -p T:8191 <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 :8191risk 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 :8191 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :8191, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8243 | Apache Synapse HTTPS Listener | TCPUDPtls | Web Services | caution | 22.3k |
| :8200 | GoToMyPC | TCP | Remote Access | caution | 9.9k |
| :8194 | Sophos RMS | TCP | Security | caution | 8.3k |
| :8222 | VMware Server UI (Insecure) | Web Services | caution | 8.2k | |
| :8192 | Sophos RMS | TCP | Security | caution | 7.4k |
| :8193 | Sophos RMS | TCP | Security | caution | 7.0k |
| :8201 | TRIVNET | TCPUDP | — | safe | 0 |
| :8207 | LM SServer | TCPUDP | — | safe | 0 |
risk mix of the 8 listed
- safe25%
- caution75%
1 of 8 encrypted