Module 3: Networking & Troubleshooting¶
Days 11–15 · Intermediate
You will read and interpret IP configuration, troubleshoot connectivity layer by layer, diagnose DNS failures, map ports to applications, and capture packets for analysis.
Module outcomes¶
- Interpret addresses, subnets, gateways and routes on both platforms.
- Run a structured connectivity investigation: link → IP → gateway → DNS → port → application.
- Resolve and debug DNS records and caching.
- Identify which process owns a listening port or connection, and capture traffic safely.
Lessons¶
| Day | Lesson | Lab | Status |
|---|---|---|---|
| 11 | IP Configuration | Lab 11 | 2026-11-12 22:00 IST |
| 12 | Connectivity Troubleshooting | Lab 12 | 2026-11-12 22:00 IST |
| 13 | DNS Troubleshooting | Lab 13 | 2026-11-13 22:00 IST |
| 14 | Ports, Sockets and Connections | Lab 14 | 2026-11-13 22:00 IST |
| 15 | Network Interfaces and Diagnostics | Lab 15 | 2026-11-14 22:00 IST |
Module test: released with Day 15 in Assessments.