Example Nginx Configuration for Proxying Alibaba Cloud OSS Domain

The following is a sample Nginx configuration that demonstrates how to proxy requests to an Alibaba Cloud OSS domain, with extensive inline comments explaining each directive.

<code># Define a new upstream named oss_backend
upstream oss_backend {
  # Specify the Alibaba Cloud OSS domain
  server oss-domain.aliyuncs.com;
}
# http block
http {
  # Define log format
  log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                  '$status $body_bytes_sent "$http_referer" '
                  '"$http_user_agent" "$http_x_forwarded_for"';
  # Access log path
  access_log /var/log/nginx/access.log main;

  # Error log path
  error_log /var/log/nginx/error.log;
  # Define http server
  server {
    # Listening port
    listen 80;

    # Server name
    server_name example.com;

    # Location block defining request handling rules
    location / {
      # Add a new header to pass the client’s real IP to the backend
      proxy_set_header X-Real-IP $remote_addr;

      # Proxy pass to the upstream oss_backend
      proxy_pass http://oss_backend;

      # Cache settings (off by default)
      proxy_cache off;

      # Timeout settings (default 60 seconds)
      proxy_connect_timeout 60s;
      proxy_send_timeout 60s;
      proxy_read_timeout 60s;
      # Disable backend redirects
      proxy_redirect off;

      # Buffer settings (default 4k or 8k)
      proxy_buffer_size 4k;
      proxy_buffers 4 32k;
      proxy_busy_buffers_size 64k;
      proxy_temp_file_write_size 64k;
      # Enable gzip compression to improve transfer speed
      gzip on;
      gzip_min_length 1k;
      gzip_types text/plain application/javascript application/json;

      # Allow only specific request methods
      if ($request_method !~ ^(GET|HEAD|POST)$ ) {
        return 405;
      }
    }
  }
}</code>

Replace the placeholder example.com with your own domain name. The configuration forwards client requests to the Alibaba Cloud OSS domain, adds the X-Real-IP header to convey the client’s actual IP address, and enables gzip compression for faster data transfer.

This is a basic example; for more advanced options and detailed explanations, refer to the official Nginx documentation.

Hope this helps!