Port 9191Sun Application Server JPDA
Sun Application Server JPDA debugging service assigned to TCP and UDP port 9191.
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 2/10
- lookups
- 0
2 transports registered
payload readable on path
registered with iana
safe
rank 993 of 4,765 · top 21%
also known as sun-as-jpda
Technical Details
what runs on :9191Sun Application Server JPDA is registered on port :9191 over tcp and udp to Abhijit Kumar, assigned November 2005. 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.
find what's listening on :9191
# linux
sudo ss -tulpn 'sport = :9191'
# macos / bsd
sudo lsof -nP -i :9191
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :9191nmap -sV -p T:9191 <host>
sudo nmap -sU -sV -p U:9191 <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 :9191risk score
2/ 10safe
routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.
system averages 2.7 across 917 ports — this one sits 0.7 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
tcp · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
no security notes recorded for :9191 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
the 8 most looked-up other ports in system — 917 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8888 | Sun Answerbook & Alt HTTP | TCP | Web Services | caution | 123.9k |
| :4664 | Google Desktop Search | TCP | System | caution | 67.2k |
| :8008 | IBM HTTP Server Admin | TCP | Web Services | caution | 58.3k |
| :3268 | Microsoft Global Catalog (GC) | TCPUDP | Security | caution | 54.6k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :9080 | WebSphere HTTP Transport (default) | TCP | Web Services | caution | 51.6k |
| :23 | Telnet | TCP | Remote Access | caution | 34.8k |
| :12489 | NSClient Monitoring Agent | TCP | Network Services | caution | 30.0k |
risk mix of the 8 listed
- caution100%
0 of 8 encrypted