Summary Log: UDP Client-Server Test Using Black Hat Python

Date: June 30, 2025
Machine: Kali Linux (Wing IDE Personal 11)
Project: Black Hat Python — Networking (UDP Socket)
Path: ~/bhp/udp_client.py + ~/bhp/udp_server.py

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🔧 Objective

Test basic UDP communication using raw Python sockets, following the example from Black Hat Python.

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🛰️ Setup

1. UDP Server (udp_server.py)
   • Listens on 127.0.0.1:9997
   • Receives incoming data via recvfrom()
   • Responds using .sendto() with UTF-8 encoded confirmation
   • UTF-8 encoding required to include emoji (✅)
2. UDP Client (udp_client.py)
   • Sends "AAABBBCCC" to 127.0.0.1:9997
   • Waits for response using recvfrom()
   • Displays response on console

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✅ Outcome

• Server launched successfully:
  🛰️ UDP server up, waiting for data...
• Client received response:
  📡 Response from server: ✅ Data received
• Server printed:
  📨 Received from ('127.0.0.1', xxxxx): AAABBBCCC
• All components functioned correctly within Wing IDE 11

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🗂️ Notes

• Initial syntax error (bytes can only contain ASCII literal characters) resolved by encoding Unicode string using .encode('utf-8')
• Both scripts saved and versioned inside the ~/bhp folder for continued development

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