Kartik8171/network-scanner

# 🌐 Home Network Scanner A command-line cybersecurity tool to scan your home network, discover live hosts, and identify open ports and risky services — built with pure Python, no external libraries needed. ## 🛡️ Features - ✅ Auto-detects your local IP and network range - ✅ Ping sweep to discover all live devices on your network - ✅ Port scanning across 17 common ports (FTP, SSH, HTTP, RDP, etc.) - ✅ Flags risky open ports (Telnet, RDP, SMB, VNC, FTP) - ✅ Resolves hostnames of discovered devices - ✅ Saves a full scan report to a `.txt` file - ✅ Three scan modes: Quick, Full, and Single IP ## 📸 Example Output ╔══════════════════════════════════════════════╗ ║ HOME NETWORK SCANNER ║ ║ by Kartik | Cybersecurity Tool ║ ╚══════════════════════════════════════════════╝ Your IP Address : 192.168.1.5 Network Range : 192.168.1.0/24 ┌─ HOST: 192.168.1.1 (router.home) │ ◄ GATEWAY │ PORT SERVICE STATUS │ ----------------------------------- │ 80 HTTP OK │ 443 HTTPS OK │ 23 Telnet ⚠ RISKY └──────────────────────────────────────── ## 🚀 How to Run **Requirements:** Python 3.x (no extra installs needed) # Clone the repo git clone https://github.com/yourusername/network-scanner.git cd network-scanner # Run the tool python network_scanner.py ## 🗂️ Scan Modes | Mode | What it does | |---|---| | Quick Scan | Ping sweep — finds all live devices on your network | | Full Scan | Ping sweep + port scan on every live host | | Single IP | Port scan a specific IP address | ## 🔴 Risky Ports Flagged | Port | Service | Why it's risky | |---|---|---| | 21 | FTP | Transfers files in plaintext | | 23 | Telnet | Sends all data unencrypted | | 135 | MS-RPC | Common Windows attack target | | 139 | NetBIOS | Old Windows sharing, exploitable | | 445 | SMB | EternalBlue / WannaCry attack vector | | 3389 | RDP | Remote Desktop — brute-force target | | 5900 | VNC | Remote access, often unsecured | ## 🧰 Tech Stack - **Language:** Python 3 - **Libraries:** `socket`, `subprocess`, `ipaddress`, `platform` (all built-in) ## 👤 Author **Kartik** — QA Analyst | Cybersecurity Enthusiast 📧 palkartik2005@gmail.com ## 📄 License MIT License — free to use and modify.

标签：后端开发