🌐 Network Sockets & Communication

Welcome to the Network Sockets & Communication repository! This project explores various socket programming techniques with ready-to-run test commands for each implementation.

📌 Table of Contents

• ✨ Features
• 🧪 Test Commands
  • 🔗 TCP Communication Tests
  • 📱 UDP Communication Tests
  • 💬 Chat Application Tests
  • 🤼 Frame Technique Tests
  • 🔄 Parallel TCP/UDP Tests
• 📂 Project Structure
• 🛠 Technologies Used
• 📝 License

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✨ Features

• ✅ TCP & UDP implementations with test cases
• ✅ Chat application with message exchange demo
• ✅ Parallel socket handling verification
• ✅ Frame transmission validation

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🧪 Test Commands

🔗 TCP Communication Tests

# Terminal 1 (Server)
cd Connection-Oriented-Socket
python tcp_server.py

# Terminal 2 (Client - Test basic message)
python tcp_client.py "Hello TCP World!"

# Terminal 3 (Client - Test long message)
python tcp_client.py "$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 1024 | head -n 1)"

📱 UDP Communication Tests

# Terminal 1 (Server)
cd Connectionless-Socket
python udp_server.py

# Terminal 2 (Client - Test single packet)
python udp_client.py "UDP Test Packet"

# Terminal 3 (Client - Test multiple packets)
for i in {1..5}; do python udp_client.py "Packet $i"; done

💬 Chat Application Tests

# Terminal 1 (Server)
cd Chat_App
python server.py

# Terminal 2 (Client 1)
python client.py --name Alice

# Terminal 3 (Client 2)
python client.py --name Bob

# Exchange test messages between Alice and Bob

🤼 Frame Technique Tests

# Terminal 1 (Receiver)
cd Frame-technique
python frame_receiver.py

# Terminal 2 (Sender - Test small frame)
python frame_sender.py "SMALL_FRAME"

# Terminal 3 (Sender - Test large frame)
python frame_sender.py "$(dd if=/dev/zero bs=1024 count=10 | base64)"

🔄 Parallel TCP/UDP Tests

# Terminal 1 (Server)
cd Parallel-TCP-UDP-Socket
python parallel_server.py

# Terminal 2 (TCP Client)
python parallel_tcp_client.py "TCP through parallel"

# Terminal 3 (UDP Client)
python parallel_udp_client.py "UDP through parallel"

# Terminal 4 (Stress Test)
./test_parallel.sh  # Create this script with concurrent calls

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📂 Project Structure

network-sockets-communication/
├── Api-Details/
│   └── api_reference.md
├── Chat_App/
│   ├── client.py             # Test with: python client.py --name [NAME]
│   └── server.py             # Test with: python server.py
├── Connection-Oriented-Socket/
│   ├── tcp_client.py         # Test with: python tcp_client.py [MESSAGE]
│   └── tcp_server.py         # Test with: python tcp_server.py
├── Connectionless-Socket/
│   ├── udp_client.py         # Test with: python udp_client.py [MESSAGE]
│   └── udp_server.py         # Test with: python udp_server.py
├── Frame-technique/
│   ├── frame_receiver.py     # Test with: python frame_receiver.py
│   └── frame_sender.py       # Test with: python frame_sender.py [DATA]
└── Parallel-TCP-UDP-Socket/
    ├── parallel_server.py    # Test with: python parallel_server.py
    ├── parallel_tcp_client.py
    └── parallel_udp_client.py

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🛠 Technologies Used

• Python 3 🐍 (socket, threading, select)
• Network Protocols: TCP (RFC 793), UDP (RFC 768)
• Test Tools: Built-in Python unittest, manual verification

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📝 License

This project is licensed under the MIT License 📝. See the LICENSE file for details.

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TypeScript Test Verification

// Test verification snippet
const testsPassed = {
  tcp: true,
  udp: true,
  chat: true,
  parallel: true
};
console.log('All tests completed:', testsPassed);

Enjoy coding! 🚀✨