- Close the port if nothing on the host needs it.
- Identify the process that listens on it (commands below) before opening it in a firewall.
- Expose a service only to the networks that use it.
Port 25471: RNSAP User Adaptation for Iurh
Port 25471 is assigned by IANA to rna (RNSAP User Adaptation for Iurh).
25471
How rna works
Other servicesThe client sends a request to port 25471 and the rna service answers.
- Transport
- SCTP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Other services
Is port 25471 dangerous?
We have no specific security note for port 25471. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 25471
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| rna | 25471 | SCTP | RNSAP User Adaptation for Iurh | - | 2011-02-07 |
// source: IANA service name and port number registry
Which program uses port 25471, and is it reachable?
Linux
sudo ss -ltnup 'sport = :25471' # process listening on 25471
sudo lsof -nP -i :25471macOS
sudo lsof -nP -i :25471
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 25471 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 25471 netstat -ano | findstr :25471
From another machine
nmap -p 25471 -sV <host> nc -zv <host> 25471
Block it in the firewall
sudo ufw deny 25471/sctp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 25471" -Direction Inbound -LocalPort 25471 -Protocol SCTP -Action Block # Windows
What is port 25471 used for?
Port 25471 is assigned by IANA to rna (RNSAP User Adaptation for Iurh).
Is port 25471 TCP or UDP?
Port 25471 is registered for SCTP.
Is it safe to open port 25471?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.
How do I check if port 25471 is open?
On Linux run "ss -ltnup 'sport = :25471'", on macOS "lsof -nP -i :25471", and on Windows "netstat -ano | findstr :25471" to see the local process. From another machine, "nmap -p 25471 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp