nmap basics
2018.01.13
linuxnetworkingclisecurity
nmap 192.168.10.1 # scan a host
nmap 192.168.10.1/24 # scan a subnet
nmap 192.168.10.1-50 # scan a range
nmap 192.168.10.1 -sV # daemon version detection
nmap 192.168.10.1 -O --osscan-guess # OS detection