Dennis

Protect your BuddyPress Installation from strangers. Only registered users will be allowed to view the installation and all other users will be redirected to the login page. Users attempting to view blog content via RSS are also authenticated via HTTP Auth.
You can exclude the registration, the homepage and blog pages (e.g. posts, archives and non-buddypress pages) from protection. In combination with the plugin ‘Invitation Code Checker’ your installation stays private but the registration is for users with a special password open.
The plugin includes a German and Hebrew (thanks to gstupp) translation.

Private BuddyPress

Protect your BuddyPress Installation from strangers. Only registered users will be allowed to view the installation.

Christian Gatti

Restricted Contents is one of the several NutsForPress plugins providing some essential features that WordPress does not offer itself or offers only partially.   
Install and activate Restricted Contents plugin and you can easily mark as restricted: images, pdf file, zip files, pages, posts and custom posts, deciding to grant access to a specific role or to any logged-in users.
Mark as restricted your media by the checkbox that you’ll find at the right sidebar of the selected element, copy and paste the provided alternative URL to link your media into pages and posts.
When “Is restricted” checkbox is flagged, the selected element will get downloadable only to logged-in users and only through the alternative URL (original URL will be protected through a htaccess rule). When “Is restricted” checkbox is not flagged, the media element will be downloadable for anyone, through both the original and the alternative URL.
Mark as restricted your pages and posts too by the checkbox that you’ll find at the right sidebar of the post/page editor.
If a not logged-in user tries to access to a restricted content, he will be redirected to the login page or to the page you have defined into “Restricted Contents” plugin options. 
Furthermore, you can grant access to post or pages only to a specific role, to more roles or to every logged-in users: chose from the dropdown menu, just after the “is restricted” checkbox.
In association with <a href="https://wordpress.org/plugins/main-entrance/" rel="ugc">Main Entrance</a>, Restricted Contents helps you to build a restricted content page, for allowing to download documents only to logged in users.
Restricted Contents is full compliant with WPML (you don’t need to translate any option value)
Take a look at the others <a href="https://wordpress.org/plugins/search/nutsforpress/" rel="ugc">NutsForPress Plugins</a>
Whatever is worth doing at all is worth doing well
<h3>Translations</h3>
<ul>
<li>English: default language</li>
<li>Italian: entirely translated</li>
</ul>
<h3>Credits</h3>
<ul>
<li>Very many thanks to <a href="https://dkr.srl/" rel="nofollow ugc">DkR</a> and <a href="https://sviluppoeuropa.it/" rel="nofollow ugc">SviluppoEuropa</a>!</li>
</ul>

NutsForPress Restricted Contents

NutsForPress Restricted Contents allows you to restrict pages, posts and media (images, zip files, pdf) to logged in users only.

Private BuddyPress vs NutsForPress Restricted Contents