Nginx Config Generator & Security Hardener

# =============================================================================
# Nginx Server Configuration - Generated by HiMat Technology
# Domain: example.com
# Architecture: NEXTJS
# Generated: 2026-10-03
# =============================================================================

# Global Rate Limiting Zone
limit_req_zone $binary_remote_addr zone=example_com_req_limit:10m rate=10r/s;

# HTTP to HTTPS Redirect
server {
    listen 80;
    listen [::]:80;
    server_name example.com www.example.com;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name example.com www.example.com;

    # Security & Privacy Hardening
    server_tokens off;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

    # SSL / TLS Certificates
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;

    # Gzip Compression
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/xml application/json application/javascript application/rss+xml application/atom+xml image/svg+xml;

    # Rate Limiting Guardrail
    limit_req zone=example_com_req_limit burst=20 nodelay;

    # Reverse Proxy to Backend Application
    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_read_timeout 60s;
        proxy_connect_timeout 60s;
    }

    # Static Asset Caching
    location ~* \.(?:css|js|png|jpg|jpeg|gif|ico|svg|webp|avif|woff2?)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
        access_log off;
    }

    # Block Sensitive Hidden Files
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}