Private page for a few persons

[Carlos]

You may be able to do what you need with the Frontend User Login Multi User plugin. I suppose you can create users and disable their access to everything (but they still would be able to view private pages).

If not, I can post a small plugin I made some time ago, that lets you define (in gsconfig) a list of admin users. Admins have access to the backend, anyone else is redirected to a page (defined in gsconfig) when they log in and can only browse private pages. But you have to create users manually (or whatever method), it's very simple.