If a service protected by Anti-DDoS Pro is attacked and the bandwidth of attack traffic exceeds the basic or burstable protection threshold, blackhole filtering is triggered. In this case, you can manually deactivate blackhole filtering in the Anti-DDoS Pro console to recover your service. We recommend that you increase the basic or burstable protection capability before you deactivate blackhole filtering. This prevents blackhole filtering from being triggered again.
Prerequisites
Background information
You consume a chance of deactivation only when you successfully deactivated blackhole filtering. The first deactivation in a day immediately takes effect. The interval of two deactivation operations must be greater than 10 minutes.
Procedure
Result
- Blackhole filtering is a risk management policy used by the backend servers of Alibaba Cloud. If your request to deactivate blackhole filtering fails, your deactivation chance for the day is not deducted. In this case, an error message appears. You can wait and try again later.
- If the message "Cannot deactivate the black hole status due to risk management. Wait 10 minutes and try again." appears, try again 10 minutes later.
- If no error message appears, blackhole filtering is deactivated. You can refresh the page to check whether network access is restored.