If your IP address has been blocked, you can confirm whether it was blocked by a cloud firewall through the following steps:
Check Firewall Logs: Most cloud firewalls provide access logs that record blocked IP addresses and the reasons for blocking (e.g., suspicious activity, brute-force attacks). Log in to your cloud console and navigate to the firewall or security group settings to review these logs.
Test Connectivity: Try accessing your cloud services (e.g., web servers, databases) from the blocked IP using tools like ping, telnet, or curl. If connections are consistently refused or time out, it may indicate a firewall block.
Review Security Policies: Check the security group or firewall rules associated with your cloud resources. Look for rules that explicitly deny traffic from your IP address or a range that includes it.
Check for Automated Security Responses: Some cloud platforms have automated threat detection systems (e.g., WAF, DDoS protection) that block IPs based on predefined rules. Check if your IP was flagged by such systems.
Example:
If you host a website on a cloud platform and users from your IP can no longer access it, check the web application firewall (WAF) logs. If the logs show repeated SQL injection attempts from your IP, the firewall likely blocked it to protect the service.
Recommended Solution:
If you confirm the block was due to a cloud firewall and it was a false positive, you can whitelist your IP in the firewall rules. For enhanced protection, consider using Tencent Cloud's Web Application Firewall (WAF) to filter malicious traffic while allowing legitimate access. Additionally, Tencent Cloud Security Center can help monitor and manage security policies efficiently.