Realizar un escaneo de puertos básico (nmap -F laptopia.de)
Nmap scan report for laptopia.de (85.13.134.59)
Host is up (0.16s latency).
rDNS record for 85.13.134.59: dd1000.kasserver.com
Not shown: 89 filtered ports
PORT STATE SERVICE
21/tcp open ftp
25/tcp open smtp
80/tcp open http
110/tcp open pop3
143/tcp open imap
443/tcp open https
465/tcp open smtps
587/tcp open submission
993/tcp open imaps
995/tcp open pop3s
3306/tcp open mysql
Nmap done: 1 IP address (1 host up) scanned in 5.36 seconds