Core Configuration Optimization
Set worker_processes to auto (matches CPU cores); worker_connections to 4096 or higher; enable sendfile, tcp_nopush, and tcp_nodelay; gzip compression level at 6 (balancing compression ratio and CPU overhead).
Reverse Proxy and Load Balancing
The upstream module supports multiple algorithms: round-robin (default), weighted, ip_hash, and least_conn. Combined with health check modules for automatic failure removal. Pay attention to URI concatenation rules in proxy_pass configuration.
SSL/TLS Optimization
Enable HTTP/2; use TLS 1.3 (faster handshake, stronger security); configure OCSP Stapling to reduce handshake latency; enable HSTS to prevent downgrade attacks; use ssl_session_cache for SSL session sharing.
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