Setting Up an Apache Web Server on Red Hat Linux

This comprehensive guide will walk you through the process of setting up and running an Apache web server on Red Hat Linux. We will cover the installation, configuration of common features like virtual hosts, and discuss important security settings.

Step 1: Installing Apache HTTP Server

First, you need to install the Apache HTTP Server package. You can do this using the following command:

sudo yum install httpd

Step 2: Starting and Enabling Apache

Once the installation is complete, you can start the Apache service and enable it to run at startup:


		sudo systemctl start httpd
		sudo systemctl enable httpd

Step 3: Configuring Apache

The main configuration file for Apache is located at /etc/httpd/conf/httpd.conf. You can open this file using your favorite text editor to modify the configuration settings:

sudo vi /etc/httpd/conf/httpd.conf

Virtual Hosts Configuration

Virtual hosts allow you to serve multiple websites using a single Apache server. To set up virtual hosts, follow these steps:

  1. Create a directory for each website's document root. For example:
    2. 
        sudo mkdir -p /var/www/site1.example.com/public_html
        sudo mkdir -p /var/www/site2.example.com/public_html
  2. Set the proper permissions for each directory:
    3. 
        sudo chown -R apache:apache /var/www/site1.example.com/public_html
        sudo chown -R apache:apache /var/www/site2.example.com/public_html
  3. Create and edit the virtual host configuration file for each website:
    4. 
        sudo vi /etc/httpd/conf.d/site1.example.com.conf
        sudo vi /etc/httpd/conf.d/site2.example.com.conf
  4. Add the following virtual host configuration in each file, adjusting the values accordingly:
    5. 
        <VirtualHost *:80>
            ServerAdmin admin@site1.example.com
            DocumentRoot /var/www/site1.example.com/public_html
            ServerName site1.example.com
            ServerAlias www.site1.example.com
            ErrorLog /var/log/httpd/site1.example.com-error.log
            CustomLog /var/log/httpd/site1.example.com-access.log combined
        </VirtualHost>

After creating the virtual host files, restart Apache for the changes to take effect:

sudo systemctl restart httpd

Step 4: Configuring Security Settings

Firewall Configuration

Allow incoming HTTP and HTTPS connections through the firewall:


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

Secure Sockets Layer (SSL) Configuration

For SSL configuration, you need to install the mod_ssl module and obtain an SSL certificate:

sudo yum install mod_ssl

Once the module is installed, you can configure SSL settings in the /etc/httpd/conf.d/ssl.conf file.

Securing the Server Configuration

Some security best practices include disabling directory indexes, disabling server signature, and hiding server tokens. Add or modify these lines in the /etc/httpd/conf/httpd.conf file:


    Options -Indexes
    ServerSignature Off
    ServerTokens Prod

Restart Apache for the changes to take effect:

sudo systemctl restart httpd