Port 474
tn-tl-w1 and tn-tl-w2 · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | tn-tl-w1 and tn-tl-w2 |
Frequently asked questions
What is port 474 used for?
Port 474 is registered with the IANA for tn-tl-w1 and tn-tl-w2 (TCP/UDP). Description: tn-tl-w1; tn-tl-w2.
Is port 474 a well-known port?
Yes. Port 474 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 474 is open?
Locally on Linux with ss -tulpn | grep ':474\b', on Windows with netstat -ano | findstr :474. To test a remote host use Test-NetConnection <host> -Port 474 in PowerShell or nc -zv <host> 474 on Linux/macOS.
How do I open port 474 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 474/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=474/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 474" -Direction Inbound -Protocol TCP -LocalPort 474 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | tn-tl-w1 | tn-tl-w1 |
| UDP | tn-tl-w2 | tn-tl-w2 |