HTTP (HyperText Transfer Protocol) is the protocol used by the World Wide Web.
You can make the filer an HTTP server by adding HTTP service to it. After you start the HTTP service, clients can display text files under the root directory by using a Web browser.
You can use the filer as an HTTP server only if you purchased the license for HTTP. Without the license, you can use an HTTP client only to display the filer man pages and to use FilerView.