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How to Redirect HTTP to HTTPS in Nginx when Using a Reverse Proxy

Learn how to effectively configure Nginx to redirect HTTP traffic to HTTPS, ensuring smooth and secure user experiences on your website. --- This video is based on the question https://stackoverflow.com/q/76099101/ asked by the user 'Efim Sirotkin' ( https://stackoverflow.com/u/11143400/ ) and on the answer https://stackoverflow.com/a/76099759/ provided by the user 'ketul patel' ( https://stackoverflow.com/u/21669962/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Nginx - Redirect HTTP to HTTPS in Reverse Proxy to Remote Site Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Redirect HTTP to HTTPS in Nginx when Using a Reverse Proxy If you're running a website using Nginx as a reverse proxy, ensuring your connections are secure is essential. Many users face issues when attempting to redirect HTTP traffic to HTTPS, particularly when integrating a reverse proxy to pull content from a remote site. This post will walk you through the steps needed to achieve a seamless redirection from HTTP to HTTPS in your Nginx configuration. Understanding the Problem When you set up Nginx as a reverse proxy, users may access your site via a non-secure HTTP connection. It's vital to automatically redirect these connections to their secure HTTPS counterparts while keeping the original domain intact. In this case, let's say you have a website served at example.net, which pulls content from https://example.com when accessed through HTTPS. The desired workflow is for users typing example.net to be automatically redirected to https://example.net without any interruption, with the original domain remaining unchanged. Current Configuration Issue Your initial setup was almost there, but the redirection from HTTP to HTTPS wasn't functioning as expected. You attempted using the following block: [[See Video to Reveal this Text or Code Snippet]] This approach caused issues, possibly due to the direct reference to example.com, which isn’t necessary if you wish to keep your domain consistent. Proposed Solution Optimal Nginx Configuration To achieve the desired redirection effectively, you would want to modify your Nginx configuration as follows: [[See Video to Reveal this Text or Code Snippet]] Breakdown of the Configuration Redirect Server Block: The first server block listens on port 80 (HTTP) and checks if the host matches example.net. If it does, a 301 redirect is issued to the HTTPS version using the $host variable to keep the domain the same. Secure Server Block: The second server block listens on port 443 (HTTPS), and here you would ensure that your SSL certificates are configured correctly to handle secure connections. The location directive allows requests to be proxied to the specified https://<example.com>, while keeping your own domain, example.net, in the browser's address bar. Benefits User Experience: Users entering your site will automatically be upgraded to a secure connection, enhancing trust and security. SEO Advantages: HTTPS is favored by search engines, improving your site’s search ranking. Simplified Management: Makes it easier to manage site traffic and ensure consistent user experience across your domain. Final Thoughts By implementing the configuration above, you should be able to seamlessly redirect HTTP to HTTPS while using Nginx as a reverse proxy. Ensure that you test your Nginx configuration with a tool like nginx -t to check for syntax errors before reloading your configuration with systemctl reload nginx. With your site now securely configured, you’ll provide a safer browsing experience for your users while maintaining the integrity of your original domain. Happy configuring!