Nginx HTTP Protocol Training Tutorial

FULL TUTORIAL at infopirate.xyz https://infopirate.xyz/knowledge/Nginx/Zeal%20Vora%20-%20Nginx%20-%20Beginner%20to%20Advanced/02_-_HTTP_Protocol/NGINX-TRAINING-HTTP-Protocol.txt Uses:

Web server Reverse proxy Load balancing Content caching Monitoring and management HTTP protocol: The communication between a web browser and a web server uses the HTTP protocol. This system allows for displaying pages and files, such as using GET /example.mp4. Typing GET / HTTP/1.1 in the browser is accompanied by the host name and other relevant information, showcasing the request's structure.

The HTTP protocol offers much more than just GET commands; it encompasses a wide array of requests and response headers.

HTTP GET method: When the client aims to retrieve specific resources, the GET method is employed. For instance, to fetch the admin page content from example.com, you would use GET /admin HTTP/1.1.

Streaming a video from a web server involves the browser sending a GET request for files like example.mp4.

HTTP Partial GET: This method allows for requesting only a segment of a video, specifying a range of bytes in the request, useful for partial content viewing.

Creating simple GET requests in SSH might involve commands to request specific parts of content, demonstrating the flexibility of HTTP in handling various content types.

HTTP Conditional GET Request: This request type asks the server for a resource only if it has been modified since a certain date, minimizing data transfer for unchanged content.

HTTP POST: Utilized for submitting data, such as login details on a form, to the server for processing. This demonstrates the dynamic nature of HTTP in interacting with web applications.

HTTP HEAD: Retrieves the headers of a resource without the body, allowing for metadata checks without full content download.

HTTP TRACE and HTTP OPTIONS:

TRACE is used for diagnostic purposes, revealing the request's path. OPTIONS identifies the supported HTTP methods for a resource, aiding in capabilities discovery. HTTP Response Status Codes: These codes inform the outcome of an HTTP request, categorized into informational, success, redirection, client error, and server error codes. They provide essential feedback on the request's handling, including successful requests (200 OK), redirections (301 Moved Permanently), client errors (404 Not Found), and server errors (500 Internal Server Error).

Understanding these codes is crucial for diagnosing issues and ensuring efficient web communication.

This summary provides a comprehensive overview of web server use cases, the function of the HTTP protocol, and the significance of HTTP methods and response status codes in web application management and troubleshooting. ... https://www.youtube.com/watch?v=FGBnTc9gX60