gufw에서 4444 포트를 열 수 없습니다


gufw를 통해 배포판에 4444 포트를 추가하기위한 SSH 규칙을 추가했지만 실행시

nmap -sV -A

표시 :

Starting Nmap 7.40 ( ) at 2017-04-25 11:30 IST
Nmap scan report for
Host is up (0.00013s latency).
All 1000 scanned ports on 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 .
Nmap done: 1 IP address (1 host up) scanned in 3.50 seconds

내가 뭘 잘못하고 있니?

gufw rule


"By default, Nmap scans the most common 1,000 ports for each protocol. "

Try to specify -p4444