A Cloud Firewall's blocking mode typically starts when specific security rules or policies are triggered. These rules can be based on various criteria, such as IP addresses, ports, protocols, or known malicious patterns. Once a request or traffic matches a predefined rule that is set to block, the firewall will prevent that traffic from passing through.
For example, if a Cloud Firewall is configured to block all incoming traffic from a known malicious IP address, the blocking mode will activate as soon as it detects traffic originating from that IP. Similarly, if a rule is set to block all HTTP traffic on port 8080, any attempt to access a service on that port will be blocked.
In the context of cloud services, Tencent Cloud offers a robust Cloud Firewall solution that helps protect your network by filtering and blocking malicious traffic based on customizable security rules. This ensures that your applications and data are safeguarded against potential threats.