b2d 中 nmap 的用法

nmap ip or hostname or ip range
ex1: nmap 192.168.1.1
ex2: nmap 192.168.1.0/24
nmap ip range >output file
ex: nmap 192.168.1.0/24 >output.txt
nmap -p port range ip
ex: nmap -p 20-200,443,1024- 192.168.1.1
half-open-scanning
nmap -sS ip or hostname