The Journey of a Web Request: Unraveling Multi-Tier Architecture and Cloud Security
Introduction: Imagine you have a company with a website, say XYZ.com , where you sell grocery items online. When a client (let’s call them Client A) tries to access your website using a web browser, they type the website address (URL). The Domain Name System (DNS) resolves this webpage name (like www.xyz.com ) into an IP address. Once the IP address is obtained, the browser sends an HTTP request to the serve. Now, what exactly is a server? Every webpage you see is essentially a static file provided by a server to your web browser. A server is nothing but a computer that is ready to serve you with the files or anything it is configured to server. For example, even something as simple as searching for www.xyz.com triggers an HTTP request to the server. The server then responds by sending back the requested webpage, typically the homepage, to the browser. While this process may seem straightforward, a lot of complex operations happen behind the scen es every time you see such simpl...