WordPress and web servers

Introduction to WordPress and Web Servers

Understanding the Basics of Web Servers

• WordPress is a web application that operates on a web server, making it essential to understand how they work together.

• A web server is essentially a computer connected to the internet, configured specifically to serve web pages.

• The LAMP stack (Linux, Apache, MySQL, PHP) is commonly used for running WordPress; Linux serves as the operating system.

Components of the LAMP Stack

• Apache is the primary web service software that handles requests from browsers and serves information back.

• MySQL functions as the database management system, storing site-related data such as product information for online stores.

• PHP is a server-side programming language that generates dynamic content by interacting with databases and outputting HTML.

Server Configuration and Virtual Hosting

• Server configurations allow multiple websites to be served from one instance; in Apache, this is called a virtual host.

• The default directory index file for servers typically looks for index.html or index.php, depending on configuration settings.

Request Handling in WordPress

• When accessing a URL on a WordPress site, the browser sends a request which triggers specific files like index.php to execute.

• The PHP interpreter processes any necessary code and interacts with MySQL to retrieve data before sending HTML back to the browser.