gufw를 통해 배포판에 4444 포트를 추가하기위한 SSH 규칙을 추가했지만 실행시
nmap -sV 10.9.0.136 -A
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
내가 뭘 잘못하고 있니?