Restrict WordPress to Private

I want to set up a private WordPress site, with only 2 users, all I need is a simple private site functionality, with visitors unable to see anything when trying to login, only being redirected to the login page. RSS should also be blocked.

I have found one plugin which does this, but it doesn’t seem to be maintained, any others which do the same thing and are maintained?

http://wordpress.org/extend/plugins/members-only/

Use this :

http://wordpress.org/extend/plugins/password-protected/

A very simple way to quickly password protect your WordPress site with
a single password. Integrates seamlessly into your WordPress privacy
settings.

How can I change the WordPress logo to a different image?

Install and configure the Login Logo plugin by Mark Jaquith. This will
change the logo on your password entry page AND also your admin login
page.