Setting up Clean Urls for Drupal 7 on Ubuntu 14.04 on Digital Ocean
So you have installed LAMP successfully on your ubuntu server and imported your drupal 7 site files and database, linked both via settings.php but apart from the front page your site is not working?
Here is the solution
If you developed your site and had clean urls working fine on the development environment, but now find it doesn’t bootstrap any page past the front page, the issue is caused by the new site failing the clean urls test.
The solution is to fix rewriting on your server.