Steps to Fix ERR_TOO_MANY_REDIRECTS in Nginx

Struggling with the ERR_TOO_MANY_REDIRECTS error in Nginx? Our Server Management Service experts at Bluehoster can help you fix it.

Overview

1. How to Fix ERR_TOO_MANY_REDIRECTS in Nginx?
2. Common Causes of ERR_TOO_MANY_REDIRECTS
3. Solutions to Resolve ERR_TOO_MANY_REDIRECTS
4. Best Practices to Avoid Redirect Loops
5. Conclusion

How to Fix ERR_TOO_MANY_REDIRECTS in Nginx?

The ERR_TOO_MANY_REDIRECTS error indicates a redirect loop, where the server endlessly bounces requests between URLs. In Nginx, this often stems from misconfigurations, SSL issues, or conflicts with other services like Apache.

Common Causes of ERR_TOO_MANY_REDIRECTS

1. Conflicting redirect rules between Nginx and Apache can lead to a redirect loop.

2. Incorrect SSL certificates or settings, especially with mixed HTTP/HTTPS configurations, can cause loops.

3. An improperly configured server_name directive in Nginx can result in incorrect redirects.

4. Serving some resources over HTTP while forcing HTTPS for others can create inconsistencies and redirect issues.

5. Misconfigured settings on Cloudflare (like SSL encryption mode) can also cause redirect loops.

6. Cached redirect information can perpetuate the problem even after making fixes.

7. Redirecting all HTTP traffic to HTTPS, including HTTPS traffic, can result in a loop.

Solutions to Resolve ERR_TOO_MANY_REDIRECTS

1. Review Nginx Configuration

Ensure your Nginx configuration has correct redirect rules, for example:

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

This block redirects all HTTP requests to HTTPS. Avoid duplicate or conflicting rules.

2. Use Separate Server Blocks

For better traffic management, configure separate server blocks for HTTP and HTTPS:

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

server {
    listen 443 ssl;
    server_name www.example.com example.com;
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    location / {
        root /home/website/public;
        index index.html index.htm;
        proxy_pass http://unix:/run/gunicorn.sock;
        include proxy_params;
    }
}

The first block manages the HTTP to HTTPS redirect.

The second block handles HTTPS traffic and SSL settings.

3. Check SSL Setup

Verify that your SSL certificate is correctly installed.

Double check the ssl_certificate and ssl_certificate_key paths.

Confirm that there aren’t any mixed SSL/TLS protocols or ciphers.

4. Fix Mixed Content Issues

Scan your website for hardcoded HTTP URLs and change them to HTTPS to prevent unnecessary redirects.

5. Review Cloudflare Settings

In Cloudflare, use the Full or Full (Strict) SSL encryption mode to resolve redirect issues.

6. Clear Browser Cache

Clear your browser’s cache and cookies.

Confirm the fix by accessing the site in incognito mode or using another browser.

7. Reset .htaccess File

If you are using Apache with Nginx, review the .htaccess file and remove any conflicting redirect rules.

8. Test and Validate Configuration

Use tools like SSL Labs to verify your SSL setup and ensure that redirects are working correctly.

Best Practices to Avoid Redirect Loops

After any configuration changes, always test your Nginx settings with nginx -t.

Keep your redirect rules simple and clear.

Avoid hardcoding URLs in your website code.

Regularly update plugins and any third party service to prevent conflicts.

[Need further assistance? Contact our team for expert support.]

Conclusion

By understanding the potential causes and applying these solutions, you can effectively resolve the ERR_TOO_MANY_REDIRECTS error in your Nginx setup.

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