Private function

[eluser]Perkin5[/eluser]
I am developing a blog and I have a controller called blogin associated with a form view.

At the moment, a successful login calls a method admin in another controller called blogadmin. The code is:

Code:

redirect('blogadmin/admin');

and that works fine. However, it's possible to reach that method by entering the address as a url and I want to prevent that. So I rename the admin method as _admin as I understand that this makes it a private method and not available via url.

I then change my code to:

Code:

redirect('blogadmin/_admin');

and I get a 404. Why doesn't it work?