I've never tried to configure web server software and I'm very frustrated here. I followed instructions here to install apache2, MySQL, and PHP5 on the latest version of Ubuntu. When I try to browse to either http://localhost or http://localhost/wordpress, I get
Not Found The requested URL / was not found on this server. Apache/2.2.11 (Ubuntu) Server at localhost Port 80
I don't know how to troubleshoot something like this and I'm finding surprisingly little online (at least that I can understand). Could anyone provide some insight? It'd be much appreciated.