nmap IP/Hostname/Range/Subnet (default scan = 1000 Ports TCP)

nmap -p Port/Port Range IP (Scan Special Ports)
nmap -F IP (Fast Portscan 100 Ports)
nmap -p- IP (Scans all 65535 Ports)

nmap -sT IP (Scanning TCP)
nmap -sU -p Ports IP ( Scanning UDP)

nmap -A IP (OS/Service Detection)
nmap -sV IP (Service Detection)

nmap -f –mtu IP (Paket wird fragmentiert)
nmap -D FakeIP,ME,FakeIP,FakeIP ( D=Decoy-Scan )