Accessing PRTG Interface

1. Open your web browser and navigate to the PRTG Network Monitor web interface.
2. Log in with your credentials to access the dashboard.

Adding SSL/TLS Certificate Revocation List Sensor

1. From the PRTG dashboard, navigate to "Devices" or "Groups" where you want to add the sensor.
2. Click on the "Add Sensor" button.
3. Search for the "SSL Certificate Expiry" sensor type and select it.
4. Choose the target device or server where the SSL/TLS certificate is installed.
5. Configure the sensor settings, including the scanning interval and notification thresholds.

Configuring SSL/TLS Certificate Revocation List Sensor

1. Once the sensor is added, click on it to access its settings.
2. Under the "Settings" tab, configure the parameters specific to SSL/TLS certificate revocation list monitoring.
3. Enable the option for CRL monitoring.
4. Specify the CRL distribution points (CDP) URLs associated with the SSL/TLS certificate.
5. Set up the monitoring frequency and notification triggers based on your requirements.
6. Save the settings.

Reviewing Monitoring Results

1. After configuring the sensor, PRTG will start monitoring the SSL/TLS certificate revocation list update intervals.
2. Access the sensor overview to view real-time data and status updates.
3. Monitor trends and historical data to identify any potential issues or anomalies.
4. Configure alerts and notifications to be promptly informed of any deviations from normal behavior.

Troubleshooting and Maintenance

1. In case of any issues or errors, review the sensor logs and error messages for troubleshooting.
2. Ensure that the CRL distribution points (CDP) URLs are accessible from the PRTG server.
3. Verify that the SSL/TLS certificate is properly configured and updated on the target device.
4. Regularly review and adjust monitoring settings as per the changing requirements of your network environment.
5. Keep PRTG Network Monitor updated to the latest version to benefit from enhancements and bug fixes.

Monitoring SSL/TLS certificate revocation list update intervals with PRTG Network Monitor is crucial for maintaining the security and reliability of your network infrastructure. By following this manual, you can effectively configure and utilize the SSL/TLS certificate revocation list sensor to ensure timely detection of any certificate revocation updates, minimizing the risk of security breaches and ensuring uninterrupted service availability.