Nmap scan report for renrenjiyun.com (47.57.140.21)
Host is up (0.15s latency).
Not shown: 978 filtered tcp ports (no-response), 13 filtered tcp ports (admin-prohibited)
PORT     STATE  SERVICE
20/tcp   closed ftp-data
21/tcp   open   ftp
22/tcp   open   ssh
80/tcp   open   http
443/tcp  open   https
888/tcp  open   accessbuilder
3306/tcp open   mysql
8888/tcp open   sun-answerbook
9090/tcp closed zeus-admin

Nmap done: 1 IP address (1 host up) scanned in 8.53 seconds