HTTP to HTTPS redirect in Nginx - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of redirecting HTTP to HTTPS in a web server?

Redirecting HTTP to HTTPS ensures that all web traffic is encrypted, protecting data from being intercepted or tampered with. It improves security and user trust.

beginner

Which Nginx directive is used to perform a permanent redirect from HTTP to HTTPS?

The return 301 https://$host$request_uri; directive is used inside the HTTP server block to permanently redirect requests to HTTPS.

beginner

Show a simple Nginx server block configuration that redirects all HTTP requests to HTTPS.

server {
    listen 80;
    server_name example.com www.example.com;
    return 301 https://$host$request_uri;
}

intermediate

Why is it important to use a 301 status code for HTTP to HTTPS redirects?

A 301 status code means 'Moved Permanently'. It tells browsers and search engines that the resource has permanently moved to HTTPS, helping SEO and caching the redirect.

beginner

What happens if you do not redirect HTTP to HTTPS on your website?

Users can access the site over an unencrypted connection, risking data interception. Browsers may show security warnings, reducing user trust and potentially harming SEO rankings.

Which Nginx directive is used to redirect HTTP traffic to HTTPS?

A listen 443 ssl;

B proxy_pass https://$host;

C return 301 https://$host$request_uri;

D rewrite ^ https://$host$request_uri? permanent;

The 'return 301 https://$host$request_uri;' directive sends a permanent redirect from HTTP to HTTPS.

What does the status code 301 mean in HTTP redirects?

A Moved Permanently

B Temporary Redirect

C Not Found

D Internal Server Error

301 means the resource has moved permanently to a new URL.

In Nginx, which port is typically used for HTTP traffic before redirecting to HTTPS?

A 443

B 8080

C 22

D 80

Port 80 is the default port for HTTP traffic.

What is the main benefit of redirecting HTTP to HTTPS?

A Improved security by encrypting data

B Lower server costs

C Faster page loading

D More ads displayed

Redirecting to HTTPS encrypts data, improving security.

Which variable in Nginx holds the original requested URI during redirect?

A $host

B $request_uri

C $server_name

D $remote_addr

$request_uri contains the original URI requested by the client.

Explain how to configure Nginx to redirect all HTTP requests to HTTPS.

Think about the server block that listens on HTTP and sends a permanent redirect.

Why is it important to use HTTPS and redirect HTTP traffic to HTTPS on websites?

Consider what happens if data is sent without encryption and how browsers react.