nmap
commands
find which hosts are up
nmap -sn 192.168.1.0/24
-sn
Ping scan, disable port scan
aggressive scan
nmap -v -A scanme.nmap.org
-v
verbose, use-vv
for more verbosity-A
enable OS, version detection, script scanning, and traceroute
fast port scan
nmap -sS -F 192.168.1.0/24
-sS
send a SYN packet-F
fast mode, scan fewer ports
other flags
-Pn
no pingoA <file>
sends to output filesS
sends SYN packetsU
UDPsV
version scan