Realizar un escaneo de puertos básico (nmap -F descovich.it)
Nmap scan report for descovich.it (138.68.115.169)
Host is up (0.15s latency).
Not shown: 76 filtered tcp ports (no-response)
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
53/tcp open domain
80/tcp open http
106/tcp open pop3pw
110/tcp open pop3
139/tcp closed netbios-ssn
143/tcp open imap
443/tcp open https
445/tcp closed microsoft-ds
465/tcp open smtps
587/tcp open submission
993/tcp open imaps
995/tcp open pop3s
3306/tcp closed mysql
5432/tcp closed postgresql
8443/tcp open https-alt
49152/tcp closed unknown
49153/tcp closed unknown
49154/tcp closed unknown
49155/tcp closed unknown
49156/tcp closed unknown
49157/tcp closed unknown
Nmap done: 1 IP address (1 host up) scanned in 3.06 seconds