我已经通过 gufw 在我的发行版中添加了一条 SSH 规则，用于添加 4444 端口，但是当我运行
nmap -sV 10.9.0.136 -A
表明 ：
Starting Nmap 7.40 ( https://nmap.org ) at 2017-04-25 11:30 IST
Nmap scan report for 10.9.0.136
Host is up (0.00013s latency).
All 1000 scanned ports on 10.9.0.136 are closed
Too many fingerprints match this host to give specific OS details
Network Distance: 0 hops
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 3.50 seconds
我究竟做错了什么？
答案1
“默认情况下，Nmap 会扫描每个协议最常见的 1,000 个端口。”
尝试指定 -p4444