aws-network-diagnostics

Troubleshoot AWS VPC connectivity by inspecting security groups, NACLs, and route tables to verify access controls and routing. This diagnostic approach helps identify and resolve cross-VPC or public/private subnet connectivity problems quickly.

Validate network paths using AWS Reachability Analyzer to verify connectivity between a source and destination in your AWS account. It checks configurations across VPCs, endpoints, and Transit Gateways to pinpoint blocking rules or routing issues.

Yes, you can diagnose DNS resolution and load balancer connectivity problems in AWS. The diagnostic process includes DNS resolution validation and multi-layer checks across VPC endpoints and load balancers to resolve private service access issues.

Cross-VPC traffic through Transit Gateway fails due to misconfigured route tables, restrictive NACLs, or security group rules. Diagnose the path by inspecting route table configurations and validating network reachability across connected VPCs.

Yes, this network diagnostics approach works for VPC endpoints and security groups. It supports guide-based diagnostics and access control verification across VPCs, endpoints, and related AWS resources to validate network paths.