- 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 7471: Stateless Transport Tunneling Protocol
Port 7471 is assigned by IANA to sttunnel (Stateless Transport Tunneling Protocol).
7471
How sttunnel works
Other servicesThe client sends a request to port 7471 and the sttunnel service answers.
- Transport
- TCP
- 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 7471 dangerous?
We have no specific security note for port 7471. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 7471
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| sttunnel | 7471 | TCP | Stateless Transport Tunneling Protocol | - | 2014-04-28 |
| - | 7471 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 7471, and is it reachable?
Linux
sudo ss -ltnup 'sport = :7471' # process listening on 7471
sudo lsof -nP -i :7471macOS
sudo lsof -nP -i :7471
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7471 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 7471 netstat -ano | findstr :7471
From another machine
nmap -p 7471 -sV <host> nc -zv <host> 7471
Block it in the firewall
sudo ufw deny 7471/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 7471" -Direction Inbound -LocalPort 7471 -Protocol TCP -Action Block # Windows
What is port 7471 used for?
Port 7471 is assigned by IANA to sttunnel (Stateless Transport Tunneling Protocol).
Is port 7471 TCP or UDP?
Port 7471 is registered for TCP.
Is it safe to open port 7471?
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 7471 is open?
On Linux run "ss -ltnup 'sport = :7471'", on macOS "lsof -nP -i :7471", and on Windows "netstat -ano | findstr :7471" to see the local process. From another machine, "nmap -p 7471 <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