I briefly reviewed that link and it seems to be speaking to web server security with JBOSS being the web server. ColdFusion is not a web server, at least it is not recommended that it be a web server in a production environment. The built-in web server inside ColdFusion is recommended only for development environments.
If you want web-server security you need to look at the features of the web server you are using with ColdFusion, commonly IIS or Apache. They both have features to provide authentication.
If you want basic Application security done with ColdFusion, the documentation has an entire chapter complete with code examples: http://livedocs.adobe.com/coldfusion/8/htmldocs/appSecurity_01.html. The basic idea is that one puts code in the Application.cfm or Application.cfc files that is run at the beginning of every request. This code checks for a logged in state, if the state is not logged in then look for a login form post, if post try to log in, if try fails OR no login form post, display login form.