Performing a basic port scan (nmap -F yakumoan.jp)
Nmap scan report for yakumoan.jp (133.18.32.85)
Host is up (0.13s latency).
rDNS record for 133.18.32.85: s420-5.kagoya.net
Not shown: 90 closed ports
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
80/tcp open http
111/tcp open rpcbind
443/tcp open https
513/tcp open login
514/tcp open shell
873/tcp open rsync
2049/tcp open nfs
Nmap done: 1 IP address (1 host up) scanned in 3.34 seconds