How can you remotely determine the host for a webserver?


One method is to give a nonexistent file over http.

Like for example http://www.vbforums.com/noexist.html

That will result in 404 page error. Some of the lazy webmasters have not yet changed this page, so you will get the webserver + the underlying OS.

But in some cases like vbforums, the default 404 page has been changed. So how do I know for a given webserver the underlying OS.

Abhijit