Bulletin Board System

Preamble

This project is a small project written as part of a Computer Networks Course(CS3201) while being on exchange at the City University of Hong Kong in Winter 2023/24. It demonstrates a simple Client-Server application that enables two devices to communicate with each other by sending and receiving messages/files. For deployment, we used two virtual machines running on Linux, connected via a mobile hotspot.

Overview

This project implements a simple bulletin board system where a client can send strings and files to a server, and retrieve stored messages.

Components

• Server: 2023_3201_server_final.py (Python)
• Client: BulletinBoard-Client.cpp (C++)

Requirements

• Python 3.11.2
• GCC (g++ 10.2.1)

Setup

1. Server:

   • Run the server on a Linux machine.
   • Start the server:

     python3 2023_3201_server_final.py

2. Client:

   • Compile and run the client on a different Linux machine:
   • Both must be connected to the same local network to be able to communicate

     g++ BulletinBoard-Client.cpp -o client
     ./client <ip> <port>

Usage

The client can send the following commands to the server:

• POST_STRING: Send a string message.
• POST_FILE: Send a file (max 256 bytes).
• GET: Retrieve all stored messages.
• EXIT: Close the connection.

License

This project is licensed under the MIT License - see the LICENSE file for details.