nmap基本使用方法 我自己的使用: nmap 149.28.72.184 Starting Nmap 7.70 ( https://nmap.org ) at 2018-06-15 16:53 CST Nmap scan report for 149.28.72.184.vultr.com (149.28.72.184) Host is up (0.30s latency). Not shown: 963 closed ports, 34 filtered ports PORT STATE S