deb http://it.archive.ubuntu.com/ubuntu/ yakkety main universe restricted multiverse

deb http://security.ubuntu.com/ubuntu yakkety-security main universe restricted multiverse

deb http://it.archive.ubuntu.com/ubuntu/ yakkety-updates main universe restricted multiverse

deb http://it.archive.ubuntu.com/ubuntu yakkety-backports main restricted universe multiverse

deb http://archive.canonical.com/ubuntu yakkety partner