Redirecting user to login page if not logged in, working also with domains what includes umlaut letters like ö, ä, õ, ü

Force Login is a simple lightweight plugin that requires visitors to log in to interact with the website.

Forces all anonymous users to login except the user connects from special ip ranges or a specific IP4 address.

Very small plugin that forces users to login to view blog content.

Makes your wordpress blog private unless the user is logged in, optionally setting a minium user level. Modified from http://wordpress.org/extend/plugins/force-user-login/

Easily hide your WordPress site from public viewing by requiring visitors to redirect specific or login page in first.