Membership Lock down will lock all post content including attached images, video, docs, and everything else, everywhere.
All who try to visit the site will be redirected to the login page.
The administrator can enable and disable the lock down as needed. 
Only registered website users will be able to access,
If a user is not logged in we will redirect them to the login page.

Membership Lock

Membership Lock down lets you easily lock all post content including attached images, video, docs, and everything else.

davidfcarr

Create posts that will only be displayed (and listed in search) for logged in members. Just add the special category Members Only to any post not to be shared publicly. Includes Members Only sidebar widget and Site News widget (all posts not in Members Only category).
There are also members_only and site_news shortcodes for listing headlines on a page or post.
This functionality was originally implemented as part of RSVPMaker for Toastmasters but could be useful for any member-oriented website.
<h3>Credits</h3>
<pre><code>Members Only Posts
Copyright (C) 2020 David F. Carr

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

See the GNU General Public License at <http://www.gnu.org/licenses/gpl-2.0.html>.
</code></pre>

Members Only Posts

Create posts that will only be displayed (and included in blog and search listings) for logged in members. Just add the special category Members Only  …

Membership Lock vs Members Only Posts