Database settings

[...]
    # DatabaseHost
    # (The database host.)
    $Self->{DatabaseHost} = 'localhost';

    # Database
    # (The database name.)
    $Self->{Database} = 'otrs';

    # DatabaseUser
    # (The database user.)
    $Self->{DatabaseUser} = 'otrs';

    # DatabasePw
    # (The password of database user.)
    $Self->{DatabasePw} = 'some-pass';

    # DatabaseDSN
    # (The database DNS.)
    $Self->{DatabaseDSN} = 'DBI:mysql:database='.
        $Self->{Database}.';host='.$Self->{DatabaseHost}.';';
[...]