Weston Ruter

<p><em>This plugin is developed at <a href="http://www.shepherd-interactive.com/" title="Shepherd Interactive specializes in web design and development in Portland, Oregon" rel="nofollow ugc">Shepherd Interactive</a><br />
for the benefit of the community. No support is available. Please post any questions to the <a href="https://wordpress.org/tags/private-page-forbidden?forum_id=10" rel="ugc">support forum</a>.</em></p>
<p>Instead of serving a 404 Not Found error with the <code>404.php</code> template, send a 403 Forbidden error and set <code>$wp_query->is_403</code> and load     403.php if it exists.</p>
<p>Provides a filter <code>forbidden_redirect</code> which if results in a non-empty filtered value will result in the user being redirected if attempting to visit a forbidden page; the default value is <code>""</code> (no redirect).</p>
<p>Useful with a filter which selectively prevents a private post from being forbidden, so that the page will not show up in the navigation and won’t be included in XML Sitemaps, for example.</p>
<pre>function my_filter_private_posts($posts){     if(is_singular() && $posts[0]->post_status == 'private'        && #Now optionally allow/disallow based on user session:        in_array($_SERVER['REQUEST_URI'], (array)@$_SESSION['allowed_private_uris']))     ){         header('Cache-Control: private'); #Prevent proxies from caching this private page         $posts[0]->post_status = 'publish';     }     return $posts; } add_filter('posts_results', 'my_filter_private_posts');</pre>


Private Page Forbidden

Instead of serving a 404 Not Found error with the 404.php template, send a 403 Forbidden error and set $wp_query->is_403 and load 403.

FAKTOR VIER

<p>Sometimes the WordPress default error page handling is not enough, because it only shows a simple text or you have to create a custom 404 template with (more) static content.<br />
<a href="https://www.f4dev.ch" rel="nofollow ugc">F4 Error Pages</a> allows you to assign any existing page from your installation to be shown, if a page is not found or the permissions for a request is denied.<br />
So you can create nice and informative error pages with your own content elements or whatever you like, fast, without overhead and unnecessary features.</p>
<h4>Usage</h4>
<p>After installation you can assign existing pages as error pages. By default there are no pages assigned.<br />
You can access the settings page either if you click the ‘Settings’ link in the plugins list or you can find it directly in the menu (Settings -> Error Pages).</p>
<h4>Features overview</h4>
<ul>
<li>Show custom page if requested url is not found (404)</li>
<li>Show custom page if permission is denied (403)</li>
<li>Easy to use</li>
<li>Lightweight and optimized</li>
<li>100% free!</li>
</ul>


F4 Error Pages

With this simple plugin you can assign custom pages (with custom content etc.) as error pages. This works for 404 (page not found) and 403 (forbidden/ …

Private Page Forbidden vs F4 Error Pages