Installing Nginx/Apache

A web server is software that stores website files (like HTML, CSS, images) and delivers them to users' web browsers. When you type a website address, a web server processes your request and sends back the content.

In this lesson, we'll focus on two popular web servers: Nginx and Apache.

Both Nginx and Apache are excellent choices for serving web content, but they have different strengths:

• Nginx: Known for high performance, efficiency, and scalability. It's often used as a reverse proxy, load balancer, and for serving static content.
• Apache: Highly flexible and feature-rich with a vast module ecosystem. It's very popular for dynamic web applications.

You'll often find them used together!

Before installing any new software, it's a good practice to update your server's package lists. This ensures you get the latest versions and security patches.

We use sudo to run commands with administrative privileges.

Now, let's install Nginx. On Debian/Ubuntu-based systems, you can use the apt package manager.

The -y flag automatically confirms any prompts during installation.

After installation, Nginx usually starts automatically. You can manage its service using systemctl. Here are some common commands:

• Start: sudo systemctl start nginx
• Enable: sudo systemctl enable nginx (starts on boot)
• Status: sudo systemctl status nginx

Use stop or restart similarly.

To verify Nginx is working, open your web browser and navigate to your server's IP address (e.g., http://YOUR_SERVER_IP). You should see the default Nginx welcome page.

If you have a firewall (like UFW), you might need to allow HTTP traffic:

Next, let's install Apache. The process is very similar to Nginx on Debian/Ubuntu systems, using the same apt package manager.

Just like Nginx, Apache's service can be managed with systemctl. It typically starts automatically after installation.

• Start: sudo systemctl start apache2
• Enable: sudo systemctl enable apache2
• Status: sudo systemctl status apache2

Use stop or restart as needed.

To confirm Apache is running, visit your server's IP address in your web browser. You should see the default Apache Ubuntu Welcome Page.

If you enabled UFW, you might need to allow Apache traffic:

Both Nginx and Apache have default directories where they expect to find your website files:

• Nginx: Typically /var/www/html
• Apache: Also commonly /var/www/html

The main configuration files are usually found in /etc/nginx/nginx.conf and /etc/apache2/apache2.conf respectively. We'll dive into configuring these files in later lessons!

You've successfully installed Nginx and Apache. Now, let's test your knowledge of service management.

Great job! You've successfully installed and performed initial checks for both Nginx and Apache web servers on your Linux instance.

• You learned how to use apt for installation.
• You used systemctl to manage web server services.
• You verified installations by accessing default web pages.

Next, we'll learn how to configure these servers to host your own static websites!