Is it possible to get a list of files under a directory of a website? How?

Question

Say I have a website www.abc.com. Under the website directory there is a page secret.html. It can be accessed directly like www.abc.com/secret.html, but there are no pages that

Answer 1

DirBuster is such a hacking script that guesses a bunch of common names as nsanders had mentioned. It literally brute forces lists of common words and file endings (.html, .php) and over time figures out the directory structure of such sites, this could discover the page as you described but would also discover many others.