How to Install LAMP PHP 8.x on CentOS 9 – Step-by-step

Getting Started

5. 5. Testing LAMP

   Finally, to Test LAMP WebServer Installation
   Access the Server document’s location:

   cd /var/www/html

   Create a PHP Info file:

   sudo nano info.php

   If Got “User is Not in Sudoers file” then see: How to Enable sudo
   And Append:

   <?php
   phpinfo();
   ?>
   

   Ctrl+x to Save & Exit from nano Editor ;)

   sudo chown apache:apache info.php

   Now to Start the Apache Web Server run:

   sudo systemctl start httpd

   Then Open a Browser and access the URL:
   http://localhost/info.php
   For a Remote Machine replace “localhost” with your Server IP in the above:
   
   You should Successfully see the PHP Info notice similar to here above :)

6. 6. Setting up Firewall

   (Optional) Required only to Set up a Web Server
   First, to Enable Remote Connections use:

   sudo firewall-cmd --permanent --zone=public --add-service=http

   Last, Restart the Firewall with:

   sudo systemctl restart firewalld.service