Port 475
tcpnethaspsrv · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | tcpnethaspsrv |
| Registered | 2010-07-23 |
Frequently asked questions
What is port 475 used for?
Port 475 is registered with the IANA for tcpnethaspsrv (TCP/UDP). Description: tcpnethaspsrv.
Is port 475 a well-known port?
Yes. Port 475 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 475 is open?
Locally on Linux with ss -tulpn | grep ':475\b', on Windows with netstat -ano | findstr :475. To test a remote host use Test-NetConnection <host> -Port 475 in PowerShell or nc -zv <host> 475 on Linux/macOS.
How do I open port 475 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 475/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=475/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 475" -Direction Inbound -Protocol TCP -LocalPort 475 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | tcpnethaspsrv | tcpnethaspsrv |
| UDP | tcpnethaspsrv | tcpnethaspsrv |