CPanel allows you to install a pre-made bulletin board forum called phpBB. The phpBB is a PHP web-based bulletin board. Unlike an e-mail list or newsgroup, the phpBB creates a forum on your web site that allows users to post questions and receive replies, all from their web browser. This allows you to choose from a variety of graphical interfaces and smilies - little faces that communicate the mood of the writer. Once a forum has been created you can modify it extensively, from adding new sub-forums to changing the visual appearance of the board. Be sure to visit the phpBB web site - https://www.phpbb.com/ - for more information on how to customize and use your phpBB
Note: Keep in mind that each separate installation of phpBB takes up several megabytes, and will grow in size with the popularity of the forum.
To install a phpBB forum:
Click on the Bulletin Board button on the home page.
Enter the name of the forum folder in the available field. Note that the folder must be on the top level of your site.
Click on the Install button.