Scan port 80 on the target system: nmap –p 80 192.168.0.1 Scan ports 1 through 200 on the target system: nmap –p 1-200 192.168.0.1 Scan (Fast) the most common ports: nmap –F 192.168.0.1 To scan all ports (1 – 65535): nmap –p– 192.168.0.1