To port or move B.I.A. SchoolSys on new server/hosting/url you have to do change in two files –
1. Open file applicationconfigconfig.php and find line $config['base_url'] = 'http://yourdonamin.com/';
change here to new url name where you want to move B.I.A. SchoolSys.
2. Open file applicationconfigdatabase.php and find following lines –
'hostname' => '',
'username' => '',
'password' => '',
'database' => '',
Change new database details in above lines.