Port 9401
sec-t4net-clt · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | sec-t4net-clt |
| Registered | 2007-02 |
Frequently asked questions
What is port 9401 used for?
Port 9401 is registered with the IANA for sec-t4net-clt (TCP/UDP). Description: Samsung Twain for Network Client.
Is port 9401 a well-known port?
No. Port 9401 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 9401 is open?
Locally on Linux with ss -tulpn | grep ':9401\b', on Windows with netstat -ano | findstr :9401. To test a remote host use Test-NetConnection <host> -Port 9401 in PowerShell or nc -zv <host> 9401 on Linux/macOS.
How do I open port 9401 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 9401/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9401/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9401" -Direction Inbound -Protocol TCP -LocalPort 9401 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | sec-t4net-clt | Samsung Twain for Network Client |
| UDP | sec-t4net-clt | Samsung Twain for Network Client |