What tools would you use to troubleshoot issues with the seventh level of the axis model when using the Double Shoot method?

To troubleshoot issues at the seventh layer of the OSI model (application layer) when using the Double Shoot method, the following tools are used:

• Traffic sniffers and analyzers: Wireshark, tcpdump — help capture and analyze network traffic at the application level, identify incorrect requests or responses.

• Application logging: analyzing logs from application servers and services to identify errors and exceptions.

• API and application testing tools: Postman, curl — allow manual reproduction of requests and verification of correct operation.

• Monitoring and tracing: APM tools like Jaeger, Zipkin, New Relic help trace call chains and identify bottlenecks.

• Proxies and debuggers: Fiddler, mitmproxy — for intercepting and modifying HTTP(S) traffic.

• The Double Shoot method involves sequential testing of two points (e.g., client and server) to identify at which stage the problem occurs. It is important to use tools that allow isolating and testing each side separately.

Example: if the application does not respond correctly, first check the API directly using Postman, then analyze the traffic between client and server with Wireshark to understand where the failure occurs.