This page provides a basic overview of troubleshooting Azure NSG rules. Please proceed with the following steps:
1. Access the Rules:** Navigate to Azure NSG Rules. You'll find a comprehensive list of rules and configuration options.
2. Identify the Issue:** Begin by examining the error message or log. Common issues might involve incorrect rule definitions, misconfigured listeners, or network connectivity problems.
3. Rule Inspection:** Carefully review each rule in detail. Understand the actions it performs and the underlying conditions.
4. Listener Verification:** Confirm that the correct listeners are configured to handle the traffic being routed. Incorrect listener settings are a frequent cause of problems.
5. Traffic Flow Analysis:** Trace the traffic flow through the NSG rules. Identify any bottlenecks or unexpected behavior.
6. Testing & Validation:** Thoroughly test the configuration to verify the expected outcomes. Use tools like `az network nsg policy check` to validate rule definitions.
7. Regular Review:** Periodically review NSG rules to ensure they remain relevant and effective, adapting to changing network conditions and security requirements.
8. Logging & Monitoring:** Enable detailed logging to understand the NSG rule responses. Consider integrating with Azure Monitor for proactive alerts.
9. Document & Knowledge Base:** Maintain a comprehensive documentation of NSG rules and configurations to facilitate troubleshooting and maintenance.
10. Support:** For complex issues, contact Azure support for assistance.
This document serves as a starting point for troubleshooting. Consult official Microsoft documentation for detailed information on NSG rules and best practices.