Never rely on terminal scrollback. Save your scans.
Let's dissect the most fundamental command for scanning a local network:
If you are a student or beginner, the single most important Nmap command to understand is:
Intensity ranges from 0 (light) to 9 (aggressive). Higher intensity is slower but more accurate for rare services.
Nmap works by sending raw IP packets in creative ways to determine what hosts are available, what services they offer, and what operating systems they run. A typical scan process includes:
sudo nmap -sS -sV -O -p 1-10000 -T4 192.168.1.0/24
sudo nmap -sC 192.168.1.10
