Not able to access internal pages

hi guys signedup for linode yesterday, and are trying to move our website to linode, but are facing main issue of "not being able to open internal pages."

we have installed Ubuntu 14lts , apache2 , mysql , php5 ,phpmyadmin successfully but Apache is notable to access .htaccess due to other files cannot be executed.

currently same system is running properly in mediatemple server.

Please help ASAP…