Sec and Net lecture recording on 11 September 2025 at 09.51.58 AM

Load Balancer, Proxies, and Content Delivery Concepts

• Terminal command referred to as NS used to perform quick checks on security, traffic, volume, and performance.
• Example site mentioned: a website address like msoe.bbu to illustrate routing and service delivery.
• Load balancer role:
  • Identifies the client’s request load/health and forwards the incoming request to the appropriate backend server.
  • Helps distribute traffic to multiple servers to improve reliability and performance.
• Proxy set (proxy design/implementation):
  • Another approach to improve security and network performance.
  • Used in conjunction with or alongside servers to mediate requests and enforce policies.
• Content delivery concept:
  • The idea of using a single server address to serve multiple content types (video, image, text, hyperlinks, other pages).
• Transition to HTTP-based processing:
  • The entire process relies heavily on the HTTP protocol; the slides will dive deeper into HTTP mechanics.
• Practical framing:
  • The discussion connects to real-world web delivery scenarios and how services like Deepgram might process requests using HTTP.

HTTP Fundamentals and Basic Structure

• The basic HTTP request structure is demonstrated in the slide notes:
  • HTTP requests are organized by parts: method, request target, HTTP version, headers, and optional body.
• HTTP request method examples:
  • GET: used to retrieve data from a server. Example concept:
  • • Requested resource: a page, e.g., one-page resource.
  • POST: used to send data to the server (e.g., form submission or data upload).
• Request line (first line) components:
  • Method: what action the client wants to perform.
  • Request-URL (or path): what resource is being requested.
  • HTTP-Version: which HTTP version is used (e.g., HTTP/1.0, HTTP/1.1).
• Response concept:
  • The server returns a status line indicating whether the request was successful.
  • Example concept: a