Adding response headers (add_header) in Nginx - Mini Project: Build & Apply

Adding Response Headers with nginx's add_header

📖 Scenario: You are managing a web server using nginx. You want to add custom response headers to improve security and provide extra information to clients.

🎯 Goal: Learn how to add response headers in nginx configuration using the add_header directive.

📋 What You'll Learn

Create a basic nginx server block configuration

Add a custom response header named X-Custom-Header with value MyValue

Add a security header named X-Content-Type-Options with value nosniff

Print the final nginx configuration to verify the headers are added

💡 Why This Matters

🌍 Real World

Web servers often need custom headers to improve security and provide metadata to browsers and clients.

💼 Career

Knowing how to configure nginx headers is a key skill for DevOps engineers managing web infrastructure.

1

Create a basic nginx server block

Create a variable called nginx_config and assign it a string containing a basic nginx server block listening on port 80 with a root directory /var/www/html and an index file index.html.

Nginx

# Your code here

Need a hint?

Use triple quotes or escaped newlines to create a multi-line string for the nginx configuration.

2

Add a custom response header

Add a line inside the server block in nginx_config to add a response header X-Custom-Header with the value MyValue using the add_header directive.

Nginx

nginx_config = "server {\n    listen 80;\n    root /var/www/html;\n    index index.html;\n    # Add the add_header directive below\n}"

Need a hint?

Place the add_header directive inside the server block, aligned with other directives.

3

Add a security response header

Add another add_header directive inside the server block in nginx_config to add the header X-Content-Type-Options with the value nosniff.

Nginx

nginx_config = "server {\n    listen 80;\n    root /var/www/html;\n    index index.html;\n    add_header X-Custom-Header MyValue;\n    # Add another add_header directive below\n}"

Need a hint?

Remember to add the new add_header directive on a new line inside the server block.

4

Print the final nginx configuration

Write a print statement to display the full nginx_config string.

Nginx

print(nginx_config)  # Your code here

Need a hint?

Use print(nginx_config) to show the configuration.