[sudo] password for nicolac: 
Trovato:1 http://it.archive.ubuntu.com/ubuntu xenial InRelease
Trovato:2 http://it.archive.ubuntu.com/ubuntu xenial-updates InRelease           
Trovato:3 http://archive.canonical.com/ubuntu xenial InRelease                   
Scaricamento di:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [94,5 kB]
Trovato:5 http://it.archive.ubuntu.com/ubuntu xenial-backports InRelease         
Recuperati 94,5 kB in 0s (329 kB/s)                                              
Lettura elenco dei pacchetti... Fatto