无法在gufw中打开4444端口

Question

我已经通过gufw在发行版中添加了4444端口的SSH规则，但是当我运行时

nmap -sV 10.9.0.136 -A

它显示：

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

我做错了什么？

gufw规则

Answer 1

“默认情况下，Nmap扫描每个协议最常见的1000个端口。”

尝试指定-p4444