How to scan networks (Wiki)

Scanning networks with nmap and masscan

The "Hacking I: Scanning Networks" chapter of binsec.wiki's Pentest Training covers the critical first step in penetration testing: network reconnaissance. This phase involves mapping the attack surface by identifying active hosts, open ports, and the services running on those ports within a target network. The chapter introduces key tools used in this process, starting with Nmap, a powerful and flexible network scanner. It walks users through various scanning techniques for host discovery, port scanning, and service detection. Additionally, the guide explains the use of Masscan, an ultra-fast port scanner designed to handle large network ranges efficiently. Masscan is especially valuable for quickly identifying open ports across expansive IP spaces, making it ideal for large-scale assessments.

Go to Hacking I: Scanning networks