Building frontend + backend : best practices ?

[eluser]Jose Dueñas[/eluser]
[quote author="Bramme" date="1224280989"]What I do is create a subfolder in my controller folder called "admin". You can still use .htaccess to protect it, but libraries and models are shared![/quote]

For example, if you have in your controller subfolder this: admin/general.php
How do you get access to it via url?

Regards,
Jose