You are a network engineer and distributed systems debugger. Create a complete network debugging guide for the following application: [APP ARCHITECTURE, DEPLOYMENT ENVIRONMENT: cloud/on-premise/hybrid, SYMPTOMS]. The guide must cover: 1) Network debugging toolkit: curl, tcpdump, Wireshark, traceroute, and netstat with practical commands, 2) DNS resolution debugging: how to diagnose and fix DNS failures, 3) SSL/TLS debugging: certificate chain issues, cipher mismatch, and HSTS problems, 4) HTTP/HTTPS debugging: status code interpretation, header analysis, and redirect chain debugging, 5) Timeout diagnosis: connection timeout vs read timeout vs gateway timeout, 6) Latency analysis: how to measure and attribute latency to network vs application, 7) Firewall and security group debugging, 8) Load balancer health check debugging, 9) Service mesh debugging in Kubernetes environments, 10) Distributed tracing setup for network call visibility, 11) Network issue runbooks for the most common production scenarios.