Fix: nginx Upstream Load Balancing Not Working — All Traffic Hitting One Server
How to fix nginx load balancing issues — upstream block configuration, health checks, least_conn vs round-robin, sticky sessions, upstream timeouts, and SSL termination.
Tag: nginx
11 articles
RSSFix: Certbot Certificate Renewal Failed (Let's Encrypt)
How to fix Certbot certificate renewal failures — domain validation errors, port 80 blocked, nginx config issues, permissions, and automating renewals with systemd or cron.
Fix: Kubernetes Ingress Not Working (404, 502, or Traffic Not Routing)
How to fix Kubernetes Ingress not routing traffic — why Ingress returns 404 or 502, how to configure annotations correctly, debug ingress-nginx and AWS ALB Ingress Controller, and verify backend service health.
Fix: Nginx WebSocket Proxy Not Working (101 Switching Protocols Failed)
How to fix Nginx WebSocket proxying not working — 101 Switching Protocols fails, connections drop after 60 seconds, missing Upgrade headers, and SSL WebSocket configuration.
Fix: Nginx location Block Not Matching (Wrong Route Served)
How to fix Nginx location blocks not matching — caused by prefix vs regex priority, trailing slash issues, root vs alias confusion, and try_files misconfiguration.
Fix: Nginx 413 Request Entity Too Large
How to fix the Nginx 413 Request Entity Too Large error when uploading files by adjusting client_max_body_size, PHP limits, Node.js body parser, proxy buffers, Docker ingress, and more.
Fix: Nginx 504 Gateway Timeout
How to fix the Nginx 504 Gateway Timeout error by tuning proxy timeout settings, fixing unresponsive upstream servers, adjusting PHP-FPM timeouts, and debugging with error logs.
Fix: Nginx SSL: error:0A00006C:SSL routines::bad key / SSL handshake failed
How to fix Nginx SSL handshake failed and certificate errors caused by mismatched keys, wrong certificate chain, expired certs, TLS version issues, and permission problems.
Fix: Nginx upstream timed out (110: Connection timed out) while reading response header
How to fix Nginx upstream timed out error caused by slow backend responses, proxy timeout settings, PHP-FPM hangs, and upstream server configuration issues.
Fix: Nginx 403 Forbidden – Permission Denied or Directory Index Disabled
How to fix the Nginx 403 Forbidden error caused by file permissions, missing index files, SELinux, or incorrect root path configuration.
Fix: Nginx 502 Bad Gateway
How to fix Nginx 502 Bad Gateway errors caused by upstream server issues, wrong proxy_pass configuration, PHP-FPM socket problems, timeout settings, SELinux, Docker networking, and more.