nmap cheat-sheet

pg

  1. Ping scan

I keep on forgetting how to use nmap; here a quick reminder.

Search for http port on all 256 devices in class C network. (Super helpful to find the routers and APs in the networ)

nmap -p 80 192.168.0.0/24

Or in class B (not sure why would I ever need this).

nmap -n -p 80 192.168.0.0/16
nmap -Pn -p 80 192.168.0.0/16
  • -Pn : Treat all hosts as online — skip host discovery
  • -n/-R: Never do DNS resolution/Always resolve [default: sometimes]

Ping scan

nmap -sn 192.168.1.0/24