I created a new area "admin", add following code to web.config in the admin area.
<authentication mode="Forms">
<forms loginUrl="~/admin/login" timeout="2880" />
</authentication>
if I go to admin page without logging in, I still get redirected to ~/account/login page. seems like the web.config in admin area didnt overwrite the web.config file in the root folder. not sure whats wrong, please help me out.