Learn how to fix ERR_TOO_MANY_REDIRECTS in Nginx. As part of our Server Management Service, Bobcares answers all your questions.
Overview
- How to Fix ERR_TOO_MANY_REDIRECTS in Nginx?
- Common Causes of ERR_TOO_MANY_REDIRECTS
- Solutions to Resolve ERR_TOO_MANY_REDIRECTS
- Best Practices to Avoid Redirect Loops
- Conclusion
How to Fix ERR_TOO_MANY_REDIRECTS in Nginx?
The ERR_TOO_MANY_REDIRECTS error occurs when the server enters a redirect loop, continuously sending requests between URLs without resolution. In an Nginx web server setup, this issue often arises due to configuration errors, SSL settings, or conflicts with other services like Apache.
Common Causes of ERR_TOO_MANY_REDIRECTS
1. If Nginx and Apache are configured with redirects, the rules may conflict, creating a loop.
2. Incorrect SSL certificates or settings can cause redirect loops, especially if HTTP and HTTPS are mismanaged.
3. An incorrect server_name directive in the Nginx configuration can result in improper redirects.
4. Serving some resources (e.g., images, scripts) over HTTP while enforcing HTTPS for others can create inconsistencies.
5. Misconfigured settings in Cloudflare, such as SSL encryption mode, can cause loops.
6. Cached redirect information can lead to persistent redirect loops even after fixes.
7. Redirecting all HTTP traffic to HTTPS, including already redirected HTTPS traffic, can create a loop.
Solutions to Resolve ERR_TOO_MANY_REDIRECTS
1. Check Nginx Configuration
Ensure the configuration includes proper redirect rules:
server {
listen 80;
server_name yourdomain.com;
return 301 https://$host$request_uri;
}
This redirects all HTTP traffic to HTTPS. Avoid additional conflicting redirects elsewhere.
2. Configure Separate Server Blocks
Set up separate server blocks for HTTP and HTTPS to manage traffic effectively:
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 handles HTTP-to-HTTPS redirection.
The second block manages HTTPS traffic and SSL configurations.
3. Review SSL Settings
Verify the SSL certificate installation.
Ensure the ssl_certificate and ssl_certificate_key paths are correct.
Also, check for mixed SSL/TLS protocols or ciphers.
4. Address Mixed Content
Scan the website for hardcoded HTTP URLs and update them to HTTPS. This prevents unnecessary redirects when resources are requested.
5. Adjust Cloudflare Settings
If using Cloudflare, switch the SSL encryption mode to Full or Full (Strict) to avoid redirect conflicts.
6. Clear Cache
Clear the browser cache and cookies.
Access the site in incognito mode or use a different browser to confirm the fix.
7. Reset .htaccess File
If using Apache alongside Nginx, check and reset the .htaccess file. Remove conflicting redirect rules to avoid redundancy.
8. Test and Validate Configurations
Furthermore, use tools like SSL Labs to verify SSL setups and ensure redirects work correctly.
Best Practices to Avoid Redirect Loops
Always test Nginx configurations after making changes using nginx -t.
Use clear and minimal redirect rules.
Avoid hardcoded URLs in website code.
Regularly update third-party plugins and services to prevent conflicts.
[Want to learn more? Reach out to us if you have any further questions.]
Conclusion
By addressing the potential causes and following these solutions, we can effectively resolve the ERR_TOO_MANY_REDIRECTS error in the Nginx setup.
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