Outbound connections
This topic lists all outbound connections of Qt License Server and Qt License Service. Ensure the firewall rules allow these connections.
Qt License Server
| Qt License Server type | HTTPS port | URL | Notes |
|---|---|---|---|
| On-Prem Qt License Server | 443 (default) | https://qls.qt.io/ | None. |
| Offline Qt License Server | N/A | N/A | No outbound connections. |
Qt License Service (on the developer machine)
| Qt License Server type | HTTPS port | URL | Notes |
|---|---|---|---|
| On-Prem Qt License Server | See QLS_PORT in your On-Prem Qt License Server configuration file. | The address of your On-Prem Qt License Server instance in your internal network. | For more information, see Configure the server address. |
| Cloud Qt License Server | 443 (default) | https://qls.qt.io/ | None. |
See also Qt License Service configuration and Qt License Server configuration.
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