Port 34965
profinet-cm-sec · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | profinet-cm-sec |
| Registered | 2026-03-10 |
Frequently asked questions
What is port 34965 used for?
Port 34965 is registered with the IANA for profinet-cm-sec (TCP/UDP). Description: PROFINET secure connection management and key provisioning.
Is port 34965 a well-known port?
No. Port 34965 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 34965 is open?
Locally on Linux with ss -tulpn | grep ':34965\b', on Windows with netstat -ano | findstr :34965. To test a remote host use Test-NetConnection <host> -Port 34965 in PowerShell or nc -zv <host> 34965 on Linux/macOS.
How do I open port 34965 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 34965/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=34965/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 34965" -Direction Inbound -Protocol TCP -LocalPort 34965 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | profinet-cm-sec | PROFINET secure connection management and key provisioning |
| UDP | profinet-cm-sec | PROFINET secure connection management and key provisioning |