[CMS] How to Remove Forum.php

[Trendri]

I want to remove forum.php from my index. When i type my url as www.naijafinder.com it redirect to www.naijafinder.com/forum.php
i want it to be www.naijafinder.com without forum.php.

I have my cms as www.naijafinder.com /content/
Home page www.naijafinder.com/forum.php

I will be glad if you can assist me with procedure on how to remove the forum.php from my url.

Thanks