NMap,也就是Network Mapper,最早是Linux下的网络扫描和嗅探工具包. 1 安装 apt-get install nmap 2 使用,查看ip下所有对外的端口 $ sudo nmap -sS ip Starting Nmap 7.01 ( https://nmap.org ) at 2018-11-16 18:29 CST Nmap scan report for ip Host is up (0.038s latency). Not shown: 997 filtered p