Create basic-network-scanning.md

Author: ngvuthdanhh

tutorials/basic-network-scanning.md

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+# Basic Network Scanning Tutorial
+
+## Overview
+Learn how to perform a simple network scan using Nmap.
+
+## Steps
+1. Open terminal in Kali Linux
+2. Identify your network interface: `ifconfig`
+3. Scan local network: `nmap -sP 192.168.1.0/24`
+4. Identify live hosts and open ports: `nmap -sV 192.168.1.5`
+5. Document results for further analysis