Module
Web and HTTP Fundamentals
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About
Core client-server model of the web, URLs, DNS basics, TCP connection reuse, the HTTP request/response cycle, methods, status codes, headers, content negotiation, cookies, and HTTPS/TLS at a practical level.
Goal
Manually craft and inspect HTTP/1.1 (and note HTTP/2/3 differences) requests/responses with curl or a browser devtools; correctly interpret common status codes and headers; explain the difference between HTTP and HTTPS and why TLS matters for confidentiality and integrity.
Prerequisites
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