Port 9999distinct
The distinct service is assigned to TCP and UDP port 9999, but public protocol details are not 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 4,603 · top 22%
3 other services are registered on port 9999. compare all 4 →
Technical Details
what runs on :9999distinct is registered on port :9999 over tcp and udp to Anoop Tewari. 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 :9999
# linux
sudo ss -tulpn 'sport = :9999'
# macos / bsd
sudo lsof -nP -i :9999
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :9999nmap -sV -p T:9999 <host>
sudo nmap -sU -sV -p U:9999 <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 :9999risk 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 :9999 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :9999, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :10000 | Webmin | Web Services | caution | 23.3k | |
| :10000 | Ericsson Account Manager | Network Services | caution | 15.9k | |
| :9999 | Lantronix RS-485 Telnet Control | TCP | Network Services | caution | 15.8k |
| :9999 | Hydranode TELNET Control | File Transfer | caution | 15.6k | |
| :10000 | BackupExec | File Transfer | caution | 15.3k | |
| :9999 | Urchin Analytics | Web Services | caution | 13.8k | |
| :9987 | TeamSpeak 3 Voice | UDP | Gaming | caution | 11.9k |
| :10051 | Zabbix Trapper | TCPUDP | Network Services | caution | 9.6k |
risk mix of the 8 listed
- caution100%
0 of 8 encrypted