Port 1194UDP/TCP
Common default port of openVPN.
What is the purpose of port 1194?
VPN. The protocol or service generally associated is OpenVPN.
Transport Protocol
UDP/TCP
Safety precautions
The port is configurable. Apply MFA and robust certificates.
Should we open this port in the firewall?
Only if a service is actually needed the use it. Apply the principle of any privilege: limit the authorized sources, destinations and interfaces, and then log connections when relevant.
How do I check this port?
Test-NetConnection SERVER -Port 1194Under Linux, you can use nc -vz SERVER 1194.
Port/service associations are common conventions. An application can be configured on another port.