I want to distinguish Login URL from user.

For example,

UserA："http://XXX.../A"

UserB："http://XXX.../B"

I tried to create two "Authentication Service : Basic credentials" for UserA and UserB , alias is different.

But can't use two "Authentication Service : Basic credentials" because , After user logged off application , two Login form is displayed.

Maybe user confused from this display.

Please tell me how to resolve this issue or another solution.

I want a best answer quickly!!!