Port 2423RNRP
RNRP is an obscure IANA-assigned service on TCP and UDP port 2423 with no established public usage.
- 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 4,046 · top 25%
Technical Details
what runs on :2423RNRP is registered on port :2423 over tcp and udp to Per Sahlqvist. 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 :2423
# linux
sudo ss -tulpn 'sport = :2423'
# macos / bsd
sudo lsof -nP -i :2423
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :2423nmap -sV -p T:2423 <host>
sudo nmap -sU -sV -p U:2423 <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 :2423risk 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 :2423 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :2423, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :2484 | Oracle SSL Listener | TCPUDPtls | Security | caution | 25.0k |
| :2370 | BMC Control-M Server | TCP | System | caution | 17.4k |
| :2369 | BMC Control-M Configuration Agent | TCP | System | caution | 14.8k |
| :2381 | HP Insight Manager Web | TCP | Web Services | caution | 14.4k |
| :2483 | Oracle Listener (Unsecure) | TCPUDP | Security | caution | 14.1k |
| :2447 | OpenView NNM ovwdb Daemon | TCPUDP | Network Services | caution | 12.8k |
| :2404 | IEC 60870-5-104 | TCP | Network Services | caution | 10.5k |
| :2427 | Cisco MGCP | UDP | Network Services | caution | 7.9k |
risk mix of the 8 listed
- caution100%
1 of 8 encrypted