What is the primary function of port 4243 in Qlik Sense?

The primary function of port 4243 in Qlik Sense is to listen for Qlik Sense Proxy Service REST API connections. This port is crucial for enabling communication between the Qlik Sense frontend and backend services. When users interact with Qlik Sense applications through a web browser, their requests are handled via the Proxy Service, which then communicates with various Qlik Sense components, including the Engine Service, using this port.

This means that any actions that require data retrieval, application loading, or user sessions are facilitated through this specific port, ensuring a smooth user experience while interacting with Qlik Sense's capabilities. The Proxy Service acts as an intermediary, processing incoming requests and forwarding them to the appropriate services, making port 4243 essential for the overall functionality of the Qlik Sense analytic platform.