Nmap scan report for host-87-21-212-106.retail.telecomitalia.it (87.21.212.106)
Host is up (0.17s latency).
Not shown: 99 filtered tcp ports (no-response)
PORT   STATE  SERVICE
23/tcp closed telnet

Nmap done: 1 IP address (1 host up) scanned in 7.08 seconds