4HOW WEB SERVERS WORK
In the previous chapter, you learned how browsers communicate over the internet and render the HTML pages and other resources that make up a website. In this chapter, you’ll learn about how those same HTML pages are constructed by web servers.
By its simplest definition, a web server is a computer program that sends back HTML pages in response to HTTP requests. Modern web servers encompass a much broader range of functionality than this suggests, however. When a browser makes an HTTP request, modern web servers allow code to be executed in order to generate the web page HTML dynamically, and often incorporate content from ...
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