Master Nginx in 2026: configure as reverse proxy for Node.js apps, load balancing across multiple servers, SSL termination with Let Encrypt, rate limiting, gzip compression, and HTTP/2.
A misconfigured load balancer can route all traffic to one server while others idle, drop connections silently, or fail to detect unhealthy backends. These problems are invisible until they cause production incidents. Here are the most dangerous LB misconfigurations and how to fix them.