Port 40023
k-patentssensor · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | k-patentssensor |
| Registered | 2015-12-02 |
| Modified | 2021-02-02 |
Frequently asked questions
What is port 40023 used for?
Port 40023 is registered with the IANA for k-patentssensor (TCP/UDP). Description: Reserved; K-PatentsSensorInformation.
Is port 40023 a well-known port?
No. Port 40023 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 40023 is open?
Locally on Linux with ss -tulpn | grep ':40023\b', on Windows with netstat -ano | findstr :40023. To test a remote host use Test-NetConnection <host> -Port 40023 in PowerShell or nc -zv <host> 40023 on Linux/macOS.
How do I open port 40023 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 40023/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=40023/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 40023" -Direction Inbound -Protocol TCP -LocalPort 40023 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | – | Reserved |
| UDP | k-patentssensor | K-PatentsSensorInformation |