Attaching an RNG Device

Attach an RNG device to an instance through the Pextra CloudEnvironment® web interface.

1. Select the virtual machine in the resource tree and view the page on the right. Click on the Resources tab in the right pane. The configuration and attached devices will be listed.

   

2. Click the Attach Device button.

   

3. Select RNG Device from the Device Type dropdown list. Additional RNG device configuration options will appear at the bottom of the dialog.

   

4. Enter a device name and optional description.

   

5. Optionally enable Hot-plug to attach the RNG device to a running instance. If Hot-plug is not enabled, the instance must be stopped before attaching the device.

   

6. Select an RNG device from the RNG device dropdown list.

   

Note

RNG devices provide a source of randomness to the guest operating system and are commonly used for cryptographic operations, key generation, and other security-related functions.

Available RNG device options include:

RNG Device	Description
/dev/random	Provides high-quality random data and may block when insufficient entropy is available.
/dev/urandom	Provides random data without blocking and is recommended for most workloads.
Passthrough	Passes the host system’s RNG device directly to the instance, allowing the guest to use the host’s entropy source.

7. Click Confirm to attach the RNG device to the instance.