Python TCP Port Scanner

Part 1: Socket Connection Implementation (30 points) Create a Python script that establishes a socket connection. Your implementation should: Create a basic client-server communication system using two Python scripts: 1. Server script that listens for connections 2. Client script that connects to the server Demonstrate proper socket initialization and connection handling Include appropriate error handling Include comments explaining your code Follow Python best practices Demonstration Requirements for Socket Connection: 1. Terminal/Command Prompt Screenshots showing: Server script running and listening for connections Client script successfully connecting to the server Message exchange between client and server Proper shutdown/disconnection handling 2. Required Test Cases (document with screenshots): Successful connection and message exchange Server receiving messages from client Client receiving responses from server Error handling when server is not running Clean disconnection process Example Test Sequence: Start server (show terminal with listening message) Start client (show successful connection) Send test message from client to server Show server receiving and processing message Show server response reaching client Demonstrate graceful disconnection Show error handling when attempting connection to inactive server Part 2: Port Scanner Implementation (30 points) Develop a Python-based port scanner that can: Scan a specified range of ports on a target host Identify open ports Handle connections appropriately Include proper error handling Include comments explaining your code Follow Python best practices Your local system (localhost/[login to view URL]) [login to view URL] - a website specifically designed for testing port scanners Scanning any other systems without explicit permission is strictly prohibited and may result in legal consequences. Demonstration Requirements for Port Scanner: 1. Terminal/Command Prompt Screenshots showing: Scanner execution against localhost ([login to view URL] and/or [login to view URL]) Results showing both open and closed ports Proper error handling for invalid inputs 2. Required Test Cases (document with screenshots): - Scanning common ports (e.g., 80, 443, 22, 21) on localhost - Scanning a custom port range on localhost - Scanning selected ports on [login to view URL] - Error handling for invalid port numbers - Error handling for unreachable hosts - Performance with different port ranges Example Test Sequence: Run scanner against localhost with common ports Show detailed output identifying open/closed ports Demonstrate scanning a specific port range Run scanner against [login to view URL] (limited port range) Show error handling for invalid inputs Include timestamp in screenshots for verification Part 3: Documentation and Reflection Upload all Python scripts to your GitHub repository Submit either: A link to your GitHub repository, OR Screenshots showing successful upload to your repository Provide screenshots demonstrating successful execution of both programs Include timestamps in your screenshots Show both successful and unsuccessful connection attempts Demonstrate proper error handling Hide Assignment Information Turnitin™ Turnitin™ enabledThis assignment will be submitted to Turnitin™. Instructions Midterm Exam Information Overview This midterm examination consists of two programming assignments and a reflection component. You will demonstrate your understanding of network programming concepts by implementing socket connections and a port scanner in Python, similar to those demonstrated in the ITProTV instructional videos. Part 1: Socket Connection Implementation (30 points) Create a Python script that establishes a socket connection. Your implementation should: Create a basic client-server communication system using two Python scripts: 1. Server script that listens for connections 2. Client script that connects to the server Demonstrate proper socket initialization and connection handling Include appropriate error handling Include comments explaining your code Follow Python best practices Demonstration Requirements for Socket Connection: 1. Terminal/Command Prompt Screenshots showing: Server script running and listening for connections Client script successfully connecting to the server Message exchange between client and server Proper shutdown/disconnection handling 2. Required Test Cases (document with screenshots): Successful connection and message exchange Server receiving messages from client Client receiving responses from server Error handling when server is not running Clean disconnection process Example Test Sequence: Start server (show terminal with listening message) Start client (show successful connection) Send test message from client to server Show server receiving and processing message Show server response reaching client Demonstrate graceful disconnection Show error handling when attempting connection to inactive server Part 2: Port Scanner Implementation (30 points) Develop a Python-based port scanner that can: Scan a specified range of ports on a target host Identify open ports Handle connections appropriately Include proper error handling Include comments explaining your code Follow Python best practices Important Security and Legal Notice For this assignment, you are ONLY authorized to scan: Your local system (localhost/[login to view URL]) [login to view URL] - a website specifically designed for testing port scanners Scanning any other systems without explicit permission is strictly prohibited and may result in legal consequences. Demonstration Requirements for Port Scanner: 1. Terminal/Command Prompt Screenshots showing: Scanner execution against localhost ([login to view URL] and/or [login to view URL]) Results showing both open and closed ports Proper error handling for invalid inputs 2. Required Test Cases (document with screenshots): - Scanning common ports (e.g., 80, 443, 22, 21) on localhost - Scanning a custom port range on localhost - Scanning selected ports on [login to view URL] - Error handling for invalid port numbers - Error handling for unreachable hosts - Performance with different port ranges Example Test Sequence: Run scanner against localhost with common ports Show detailed output identifying open/closed ports Demonstrate scanning a specific port range Run scanner against [login to view URL] (limited port range) Show error handling for invalid inputs Include timestamp in screenshots for verification Ethical Scanning Guidelines: DO scan: localhost ([login to view URL]) and [login to view URL] DON'T scan: Any other websites, servers, or systems DON'T perform aggressive scanning or DOS attacks DO include appropriate delays between scan attempts DO respect rate limiting and scanning guidelines DO document all testing activities in your submission Part 3: Documentation and Reflection Upload all Python scripts to your GitHub repository Submit either: A link to your GitHub repository, OR Screenshots showing successful upload to your repository Provide screenshots demonstrating successful execution of both programs Include timestamps in your screenshots Show both successful and unsuccessful connection attempts Demonstrate proper error handling Written Reflection Write a 1-2 page reflection (in your own words) addressing the following: Your approach to developing the socket connection and port scanner Challenges encountered and how you overcame them If/how you utilized AI tools (such as GitHub Copilot) in your development process Include specific prompts you used with AI tools Explain how you modified and improved upon AI-generated code Security considerations and best practices you implemented Legal and ethical considerations of creating and using a port scanner. This should include one reference cited in APA format What you learned from this assignment and how it relates to security automation

Project ID: 40505012