Nginx

Performance Commands

Maximize Nginx performance through compression settings, proxy caching, static file optimization, worker configuration, and connection tuning for high-traffic web applications.

8 commands

Pro Tips

Enable gzip compression for text assets: `gzip on; gzip_types text/plain text/css application/json application/javascript;`

Set `worker_processes auto;` to automatically match CPU cores and `worker_connections 1024;` for concurrent connections.

Enable proxy caching with `proxy_cache_path` to cache backend responses and reduce load on application servers.

Use `sendfile on;` and `tcp_nopush on;` to optimize static file delivery and reduce system calls.

Common Mistakes

Aggressive caching can serve stale content. Use cache invalidation strategies and appropriate Cache-Control headers.

Monitor worker process CPU usage - if consistently high, consider increasing `worker_processes` or optimizing backend.

Commands

Browser cache static assets

$ location ~* \.(jpg|css|js|svg|woff2)$ { expires 1y; add_header Cache-Control "public, immutable"; }

Cache static files for one year

Limit concurrent connections

$ limit_conn_zone $binary_remote_addr zone=addr:10m; limit_conn addr 10;

Restrict concurrent connections per IP

Enable gzip compression

$ gzip on; gzip_types text/plain text/css application/json application/javascript;

Compress text responses to reduce bandwidth

Keepalive upstream connections

$ upstream backend { server 127.0.0.1:3000; keepalive 32; }

Reuse connections to backend servers

Disable logging for static files

$ location ~* \.(jpg|css|js|ico)$ { access_log off; log_not_found off; }

Reduce I/O by skipping static file logs

Apply rate limit to location

$ limit_req zone=mylimit burst=20 nodelay;

Apply rate limit with burst allowance

Rate limit per IP

$ limit_req_zone $binary_remote_addr zone=mylimit:10m rate=10r/s;

Limit each IP to 10 requests per second

Worker process tuning

$ worker_processes auto; worker_rlimit_nofile 100000;

Auto-configure workers per CPU core