Restoring the Embedded Sensor after restoring the application from a backup copy

If the network mask in the backup copy of the application does not match the network mask in the application that was used as the basis for the restoration, the Embedded Sensor encounters an error after the restoration. We recommend checking the current network mask to ascertain that the error is due to a mismatch.

To check the current value of the network mask,

Select the Sensor servers section of the application web interface.

The current value of the network mask is displayed on the component card under the name of the component. If the values do not match, follow the steps in the instructions to restore the Embedded Sensor.

After restoring the component, the settings for the ICAP integration with the proxy server and the SMTP and POP3 integrations with the mail server are reset. The settings for forwarding traffic from the Endpoint Agent to the Sensor server, if configured, are also reset.

To restore the Embedded Sensor:

1. Select the Sensor servers section in the window of the application web interface.
2. Click the card of the relevant component.

   This opens a window with information about the component.

3. Click Delete.
4. The component card is deleted.
5. Sign in to the management console of the Central Node server that hosted the relevant Embedded Sensor using SSH or a terminal.
6. Raise the privileges of the user by running the following command:

   sudo -i

7. Run the following commands:

   kata-sensor-tool reset

   kata-sensor-tool init-embedded-sensor

The Embedded Sensor is restored. Information about the component is displayed in the Sensor servers section.

If restoration fails, please contact Technical Support.

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