Geeksforgeeks — Nmap

For a GeeksforGeeks learner, start with , then learn Wireshark for deep packet inspection and Netcat for reverse shells/banner grabbing.

In the world of cybersecurity and network administration, knowledge is power. Understanding what devices are running on your network, which ports are open, and what services are exposed is the first step toward securing an infrastructure. The de facto tool for this task is (Network Mapper). nmap geeksforgeeks

import nmap # Initialize the port scanner scanner = nmap.PortScanner() # Scan target for specific ports target = '127.0.0.1' scanner.scan(target, '21-80') # Print scan results for host in scanner.all_hosts(): print(f'Host : host (scanner[host].hostname())') print(f'State : scanner[host].state()') Use code with caution. For a GeeksforGeeks learner, start with , then

To use Nmap, you typically run it via the command line. Below are common examples frequently documented on platforms like GeeksforGeeks : The de facto tool for this task is (Network Mapper)

Nmap supports multiple output formats for reporting and analysis.