Apache HTTP Server – Web Server

Apache HTTP Server is the world’s most used web server software. Developed and maintained by the Apache Software Foundation, it has powered the web since 1995 and remains a cornerstone of internet infrastructure.

Key Features

• Modular Architecture: Extensive module system
• .htaccess: Per-directory configuration
• Virtual Hosts: Multiple sites on one server
• SSL/TLS: Built-in encryption support
• URL Rewriting: Powerful mod_rewrite module

Installation

Install Apache on Ubuntu:

sudo apt update
sudo apt install apache2
sudo systemctl enable apache2
sudo systemctl start apache2

Usage Examples

Virtual host configuration:

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/example.com
    
    <Directory /var/www/example.com>
        Options Indexes FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>
    
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Benefits

Apache offers unmatched flexibility through its module system and configuration options. Its maturity and extensive documentation make it reliable for hosting applications of any scale.

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