dm-linux-ssl-alt

server {
    listen 80;
    server_name linux.smartstore.com;

    # Redirect HTTP to HTTPS
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name linux.smartstore.com;

    # SSL Certificates
    ssl_certificate /etc/ssl/certs/yourdomain.com.crt.pem;
    ssl_certificate_key /etc/ssl/private/yourdomain.key.pem;
    
    # SSL Configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1h;
    ssl_session_tickets off;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

    # Security headers
    add_header X-Content-Type-Options nosniff;
    add_header X-Frame-Options DENY;
    add_header X-XSS-Protection "1; mode=block";
    add_header Referrer-Policy "no-referrer-when-downgrade";
    add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; object-src 'none';";

    # File upload size limit
    client_max_body_size 1000M; # Adjusted to a more typical size

    # Gzip Compression for better performance
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
    gzip_vary on;

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

    # Reverse Proxy Configuration
    location / {
        proxy_pass http://localhost:5000;
        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_cache_bypass $http_upgrade;
    }
}