I have just uploaded the tool on the web server.
When the permissions aren't set on the data folder, I can get to the settings page, but saving any settings just reloads the page and doesn't update the settings.
However when I give the web server user access to the data folder I just get page timeout. It won't even load index.php let alone start a crawl.
OS: Ubuntu 14.04
Web server: nginx 1.4.6