Azure Networking Troubleshooting - Best Practices

This page provides a comprehensive overview of best practices for Azure networking. We’ll cover key areas to ensure optimal performance, security, and cost-effectiveness.

Let's dive in!

Key Areas to Focus On:

1. **Subnet Planning:** Properly size subnets to meet application needs. Don't over-provision – avoid unnecessary overhead. Consider using Azure Traffic Manager to decouple services.

2. **Network Security Groups (NSGs):** Implement robust NSG rules to control traffic flow based on application needs. Use least privilege principles.

3. **Azure Route Explorer:** Leverage Route Explorer for complex routing scenarios, especially with multiple subscriptions and resources. Optimize routing paths for performance and cost.

4. **Azure Traffic Manager:** Use Traffic Manager to direct users to the best-performing geographic region/service. Properly configure health probes for monitoring.

5. **Azure DNS:** Utilize Azure DNS for domain management and zone registration, leveraging features like DNSSEC for enhanced security.

6. **Cost Optimization:** Regularly review and optimize your Azure costs. Use Azure Cost Management + Analytics to identify areas for savings.

7. **Monitoring & Logging:** Implement comprehensive monitoring and logging to proactively identify issues and troubleshoot network problems.

8. **Service Availability Zones:** Utilize Service Availability Zones for high availability and disaster recovery.

9. **Azure Bastion:** Using Azure Bastion will streamline access to VMs and other resources.

10. **Azure Network Watcher:* Utilize Azure Network Watcher to monitor the network for anomalies and potential issues.

This page provides a starting point. For detailed documentation, please refer to the official Microsoft Azure documentation: [link to official documentation]