Please someone explain me how a HTTP/FTP request is served?
Say, I open the Internet Explorer and type
www.yahoo.com
and I will press ENTER key and the page will be displayed on my desktop.
But what is the actual process that takes place?
Your browser will first hit up the DNS server configured on your computer. Then the DNS will try to resolve the url to an ip address. Next your computer will go to the default gateway looking for that ip address. The default gateway will route the request out.
You will setup a socket between your computer and the website, this is identified by the source/destination ip and the source/destination port which together identify the communicating computers and the processes at both ends so the correct reply/requests are processed by the right processes.
You will issue HTTP commands to GET the website, and the browser will then interpret the HTML code and display it in conformance to the HTML standards.
