phpBB is a high powered, fully scalable, and highly customizable Open Source bulletin board package. phpBB has a user-friendly interface, simple and straightforward administration panel, and helpful FAQ. Based on the powerful PHP server language and your choice of MySQL, MS-SQL, PostgreSQL or Access/ODBC database servers, phpBB is the ideal free community solution for all web sites.
The first step is to create a database. For this you can use the option in cpanel. Please refer to the details given below to complete the installation.
Database Configuration
Database Server Hostname / DSN: localhost
Your Database Name: database name
Database Username: username for the database
Database Password: password for the database
Prefix for tables in database: phpbb_
Admin Configuration
Admin Email Address: your email address
Domain Name: domainname.com
Server Port: 3306
Script path:exact path of the folder to which you are installing it
Administrator Username: any name
Administrator Password: any password
Administrator Password [ Confirm ]:confirm the above password
For more details please refer to the following url