Recently, we came across an error - "Forbidden You don't have permission to access / on this server" while trying to run a new virtual host on our Ubuntu 14.04 machine. The first step to troubleshoot this type of issue would be to check at your Apache error logs as this specific type status can be thrown due to many reasons. Since we have Apache 2.4.7 installed on our system, each virtual host file should have the .conf extension. We corrected the extension also. But the issue was still there. However this information lead us to think on it further and finally we found the reason for the issue.