~$ sudo netstat -ltn
[sudo] password di sshserver:
Connessioni Internet attive (solo server)
Proto CodaRic CodaInv Indirizzo locale        Indirizzo remoto       Stato
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:5355            0.0.0.0:*               LISTEN
tcp6       0      0 :::22                   :::*                    LISTEN
tcp6       0      0 ::1:631                 :::*                    LISTEN
tcp6       0      0 :::5355                 :::*                    LISTEN