WordPress website returns a 404 Page Not Found error on internal pages and posts

[senthil]

Applicable to:

• Plesk for Linux

Symptoms

• Plesk Obsidian running on Linux-based operating system
• A WordPress website hosted on a Plesk server uses only Apache as its web server and returns returns the
  error HTTP 404 Page Not Found on internal pages and posts, when visited via a browser.
• A .htaccess is missing from the main directory (Document root) of the WP installation (it may also be empty
  or containing incorrect information)
  

Cause

A Wordpress website that is hosted on an Apache web server requires the existence of a default .htaccess file
within its main directory. If this file is missing or has improper content, such 404 errors are expected.

Resolution

• Log into Plesk
• Go to Domains > example .com > Dashboard > Files
• Navigate to the main directory of the WP installation
• Add the default WordPress .htaccess rewrite rules in the .htaccess file that resides within the main directory
  of the website:
  
  Code Select Expand
  # BEGIN WordPress

RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

# END WordPress

Once this is done, the internal pages and posts of the WP installation will be displayed properly.